Search Results: "History Vs. Genghis Khan - Alex Gendler"
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06:07 Popular
History Vs. Genghis Khan - Alex Gendler
1,058 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/history-vs-genghis-khan-alex-gendler He was one of the most fearsome warlords who ever lived, waging an unstoppable conquest across the Eurasian continent. But was Genghis Khan a vicious barbarian or a unifier w
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04:28 Popular
History vs. Cleopatra - Alex Gendler
1,402 views / 7 likes - addedView full lesson: ed.ted.com/lessons/history-vs-cleopatra-alex-gendler She was the most notorious woman in ancient history, a queen who enraptured not one but two of Rome’s greatest generals. But was she just a skilled seductress – or a great ruler in her
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04:45 Popular
The History Of Marriage - Alex Gendler
865 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/the-history-of-marriage-alex-gendler A white, puffy dress. Eternal love. A joint tax return. Marriage means something different to everyone and has changed over time and across cultures. Alex Gendler traces the
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05:40 Popular
History Vs. Richard Nixon - Alex Gendler
1,041 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/history-vs-richard-nixon-alex-gendler The president of the United States of America is often said to be one of the most powerful positions in the world. But of all the US presidents accused of abusing that power
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05:22 Popular
History Vs. Napoleon Bonaparte - Alex Gendler
1,038 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/history-vs-napoleon-bonaparte-alex-gendler After the French Revolution erupted in 1789, Europe was thrown into chaos. Neighboring countries’ monarchs feared they would share the fate of Louis XVI and attacked th
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06:08 Popular
History vs. Che Guevara - Alex Gendler
702 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/history-vs-che-guevara-alex-gendler His face is recognized all over the world – the young medical student who became a revolutionary icon. But was Che G
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05:55 Popular
History Vs. Christopher Columbus - Alex Gendler
1,230 views / 4 likes - addedView full lesson: http://ed.ted.com/lessons/history-vs-christopher-columbus-alex-gendler Many people in the United States and Latin America have grown up celebrating the anniversary of Christopher...
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History vs. Augustus - Peta Greenfield & Alex Gendler
641 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/history-vs-augustus-alex-gendler-and-peta-greenfield His reign marked the beginning of one of history’s greatest empires … and the end of one of its fir
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History vs. Henry VIII - Mark Robinson and Alex Gendler
653 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/history-vs-henry-viii-mark-robinson-and-alex-gendler He was a powerful king whose break with the church of Rome would forever change the course of Engli
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A brief history of chess - Alex Gendler
480 views / 1 likes - addedTrace the storied history of the game of chess, from its origins in 7th century India to the computer software we use today. --The attacking infantry advances, their elephants already having broken the defensive line. The king tries to retreat, but the en
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One of the most epic engineering feats in history - Alex Gendler
483 views / 0 likes - addedDig into the history of the construction of the iconic Brooklyn Bridge and how John Roebling designed a hybrid suspension system to build it. --In the mid-19th century, suspension bridges were collapsing all across Europe. Their industrial cables frayed a
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04:03 Popular
How Languages Evolve - Alex Gendler
1,019 views / 2 likes - addedView full lesson: http://ed.ted.com/lessons/how-languages-evolve-alex-gendler Over the course of human history, thousands of languages have developed from what was once a much smaller number. How did we end up with so many? And how do we keep track of the
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05:20 Popular
Where Did Russia Come From? - Alex Gendler
900 views / 6 likes - addedView full lesson: http://ed.ted.com/lessons/where-did-russia-come-from-alex-gendler Russia is the biggest country in the world, spanning one-eighth of the earth’s landmass. But where did it all begin? Alex Gendler explores the epic history of the Kievan R
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05:37 Popular
How Did Hitler Rise To Power? - Alex Gendler And Anthony Hazard
1,068 views / 4 likes - addedView full lesson: http://ed.ted.com/lessons/how-did-hitler-rise-to-power-alex-gendler-and-anthony-hazard Decades after the fall of the Third Reich, it feels impossible to understand how Adolf Hitler, the tyrant who orchestrated one of the largest genocide
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How Tsunamis Work - Alex Gendler
3,132 views / 19 likes - addedView full lesson: http://ed.ted.com/lessons/how-tsunamis-work-alex-gendler The immense swell of a tsunami can grow up to 100 feet, hitting speeds over 500 mph -- a treacherous combination for anyone or anything in its path. Alex Gendler details the causes
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Plato’s Allegory Of The Cave - Alex Gendler
1,019 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/plato-s-allegory-of-the-cave-alex-gendler Twenty four hundred years ago, Plato, one of history’s most famous thinkers, said life is like being chained up in a cave forced to watch shadows flitting across a stone
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05:23 Popular
Why Elephants Never Forget - Alex Gendler
1,107 views / 3 likes - addedView full lesson: http://ed.ted.com/lessons/why-elephants-never-forget-alex-gendler It’s a common saying that elephants never forget. But the more we learn about elephants, the more it appears that their impressive memory is only one aspect of an incredib
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04:01 Popular
What We Know (and Don't Know) About Ebola - Alex Gendler
763 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/what-we-know-and-don-t-know-about-ebola-alex-gendler The highly virulent Ebola virus has seen a few major outbreaks since it first appeared in 1976 -- with the worst epidemic occurring in 2014. How does the viru
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Can you find the next number in this sequence? - Alex Gendler
2,287 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/can-you-find-the-next-number-in-this-sequence-alex-gendler 1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and
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Can You Solve The Bridge Riddle? - Alex Gendler
2,044 views / 3 likes - addedView full lesson: https://ed.ted.com/lessons/can-you-solve-the-bridge-riddle-alex-gendler Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever with the skull symbol just to see what it did probably wasn’t s
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05:56 Popular
How to recognize a dystopia - Alex Gendler
781 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/how-to-recognize-a-dystopia-alex-gendler The genre of dystopia – the ‘not good place’– has captured the imaginations of artists and audiences alike for centuries. But why do we bother with all this pessimism? Al
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04:54 Popular
Can you solve the three gods riddle? - Alex Gendler
1,282 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/can-you-solve-the-three-gods-riddle-alex-gendler You and your team have crash-landed on an ancient planet. Can you appease the three alien overlords who rule it and get your team safely home? Created by logician
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Myths And Misconceptions About Evolution - Alex Gendler
849 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/myths-and-misconceptions-about-evolution-alex-gendler How does evolution really work? Actually, not how some of our common evolutionary metaphors would have us believe. For instance, it's species, not individual
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How does impeachment work? - Alex Gendler
743 views / 0 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-does-impeachment-work-alex-gendler For most jobs, it’s understood that you can be fired – whether for crime, incompetence, or just poor performance.
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Why Do We Cry? The Three Types Of Tears - Alex Gendler
1,106 views / 2 likes - addedView full lesson: http://ed.ted.com/lessons/why-do-we-cry-the-three-types-of-tears-alex-gendler Whether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particula
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What Is A Gift Economy? - Alex Gendler
768 views / 2 likes - addedView full lesson: http://ed.ted.com/lessons/what-is-a-gift-economy-alex-gendler What if, this holiday season, instead of saying "thank you" to your aunt for her gift of a knitted sweater, the polite response expected from you was to show up at her house i
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Can You Solve The Prisoner Hat Riddle? - Alex Gendler
1,405 views / 3 likes - addedView full lesson: http://ed.ted.com/lessons/can-you-solve-the-prisoner-hat-riddle-alex-gendler You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids
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Can you solve the pirate riddle? - Alex Gendler
1,808 views / 3 likes - addedView full lesson: http://ed.ted.com/lessons/can-you-solve-the-pirate-riddle-alex-gendler It’s a good day to be a pirate. Amaro and his four mateys – Bart, Charlotte, Daniel, and Eliza have struck gold – a chest with 100 coins. But now, they must divvy up
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The Wars That Inspired Game Of Thrones - Alex Gendler
634 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/the-wars-that-inspired-game-of-thrones-alex-gendler Beginning around 1377, medieval England was shaken by a power struggle between two noble families, which spanned generations and involved a massive cast of cha
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The Famously Difficult Green-eyed Logic Puzzle - Alex Gendler
1,338 views / 2 likes - addedView full lesson: http://ed.ted.com/lessons/the-famously-difficult-green-eyed-logic-puzzle-alex-gendler One hundred green-eyed logicians have been imprisoned on an island by a mad dictator. Their only hope for freedom lies in the answer to one famously di
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The Turing Test: Can A Computer Pass For A Human? - Alex Gendler
1,126 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/the-turing-test-can-a-computer-pass-for-a-human-alex-gendler What is consciousness? Can an artificial machine really think? For many, these have been vital considerations for the future of artificial intelligenc
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What would it be like to live on the moon? - Alex Gendler
1,199 views / 1 likes - addedThis video was made in partnership with the Airbus Foundation. Find out more about their work here: http://bit.ly/2M262NF View full lesson: https://ed.ted.com/lessons/what-would-it-be-like-to-live-on-the-moon-alex-gendler The European Space Agency is hopi
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The Colossal Consequences Of Supervolcanoes - Alex Gendler
847 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/the-colossal-consequences-of-supervolcanoes-alex-gendler In 1816, Europe and North America were plagued by heavy rains, odd-colored snow, famines,...
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The woman who stared at the sun - Alex Gendler
266 views / 1 likes - addedGet to know the legacy of Hisako Koyama, whose drawings of the suns surface helped scientists reconstruct 400 years of sunspot activity.--In 1944, amateur astronomer Hisako Koyamas latest endeavor was sketching the suns shifting surface. She spent weeks a
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Why are airplanes slower than they used to be? - Alex Gendler
244 views / 1 likes - addedWhy arent commercial flights getting faster? Dig into the technological and environmental problems facing supersonic flight. --In 1996, a British Airways plane flew from New York to London in a record-breaking two hours and fifty-three minutes. Today, how
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What “Machiavellian” really means - Pazit Cahlon and Alex Gendler
521 views / 0 likes - addedDownload a free audiobook version of "The Art of War" and support TED-Ed's nonprofit mission: https://adbl.co/2CDGJi9 Check out our full book recommendation: https://shop.ed.ted.com/products/the-art-of-war -- From Shakespeare’s plays to modern TV dramas,
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Why doesn't the Leaning Tower of Pisa fall over? - Alex Gendler
536 views / 0 likes - addedDig into the 800 year history and architecture of the Leaning Tower of Pisa and find out what gives the tower its infamous tilt. --In 1990, the Italian government enlisted top engineers to stabilize Pisas famous Leaning Tower. Thered been many attempts du
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Can you solve the multiplying rabbits riddle? - Alex Gendler
1,092 views / 0 likes - addedSign up for our newsletter and never miss an animation: http://bit.ly/TEDEdNewsletter View full lesson: https://ed.ted.com/lessons/can-you-solve-the-multiplying-rabbits-riddle-alex-gendler After years of experiments, you’ve finally created the pets of the
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How do ventilators work? - Alex Gendler
378 views / 0 likes - addedTake a journey into the respiratory system to see how ventilators bypass constricted airways and help damaged lungs send oxygen to the body. --In the 16th century, physician Andreas Vesalius described how a suffocating animal could be kept alive by insert
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Can you solve the monster duel riddle? - Alex Gendler
569 views / 3 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ --Youve come a long way to compete in the great Diskymon league and prove yourself a Diskymon master. Now that youve made it to the finals, youre up against some tough competition. In round one
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Can you solve the Alice in Wonderland riddle? - Alex Gendler
457 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ --After many adventures in Wonderland, Alice has once again found herself in the court of the temperamental Queen of Hearts. Shes about to pass through the garden undetected, when she overhears
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Why should you read “Crime and Punishment”? - Alex Gendler
603 views / 0 likes - addedDownload a free audiobook version of "Crime and Punishment" and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed Check out our full book recommendation: https://shop.ed.ted.com/products/crime-and-punishment -- What drives someone to kill
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Which voting system is the best? - Alex Gendler
359 views / 0 likes - addedDive into four different voting systems: plurality, instant runoff, tactical, and the Condorcet method, and find out which is fairest. --Imagine we want to build a new space port at one of four recently settled Martian bases, and are holding a vote to cho
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The original ring of power - Alex Gendler
267 views / 0 likes - addedDownload a free audiobook version of The Lord of the Rings: The Fellowship of the Ring and support TED-Ed's nonprofit mission: https://www.audible.com/ted-ed--More than 2,000 years ago, the Greek philosopher Plato recounted the legend of the Ring of Gyges
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How the worlds tallest skyscraper was built - Alex Gendler
298 views / 1 likes - addedDiscover the engineering innovations that made building Burj Khalifa, the worlds tallest skyscraper, possible.--In 2004, construction began on a new building in Dubai, promising a revolutionary design that would dwarf the rest of the worlds skyscrapers. F
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03:45 Popular
Can you outsmart this logical fallacy? - Alex Gendler
1,296 views / 1 likes - addedExplore the psychology of the cognitive bias known as the conjunction fallacy, where we assume specific conditions are more probable than general ones. --Meet Lucy. She was a math major in college, and aced all her courses in probability and statistics. W
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07:51 Popular
The Myth of Hercules: 12 labors in 8-bits - Alex Gendler
858 views / 2 likes - addedCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/the-myth-of-hercules-12-labors-in-8-bits-alex-gendler Hercules — son of Zeus and champion of humankind — stricken with a temporary curse of madness, has
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The Egyptian myth of Isis and the seven scorpions - Alex Gendler
636 views / 1 likes - addedDive into the Egyptian myth of Isis, a powerful goddess protecting her son from her murderous brother with the help of seven scorpions. --A woman in rags emerged from a swamp flanked by seven giant scorpions and approached a magnificent mansion to beg for
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Why should you read The Master and Margarita? - Alex Gendler
507 views / 0 likes - addedGet to know the Russian classic The Master and Margarita, a genre-defying blend of political satire and occult mysticism about a visit from the Devil.--The Devil has come to town. But dont worry all he wants to do is stage a magic show. This absurd premis
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How the world's longest underwater tunnel was built - Alex Gendler
351 views / 0 likes - addedDiscover how the English Channel Tunnel was built and the engineering challenges of building a 200 kilometer long tunnel underwater.--Flanked by two powerful nations, the English Channel has long been one of the worlds most important maritime passages. Ye
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05:20 Popular
Can you solve the false positive riddle? - Alex Gendler
895 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/tededprobabilitypairs/ Mining unobtainium is hard work – the rare mineral appears in only 1% of rocks in the mine. But y
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05:51
Can you solve the death race riddle? - Alex Gendler
503 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ --The night before the Death Race across the Wastelands is set to begin, your uncle, the great inventor Slate Kanoli, got kidnapped by the ruthless No-Side gang. The only way to get him back is
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How one design flaw almost toppled a skyscraper - Alex Gendler
258 views / 1 likes - addedDig into the unique engineering of New York Citys Citicorp Center tower, and the design flaw that threatened to topple it.--In 1978, Diane Hartley was writing her undergraduate architecture thesis when she made a shocking discovery. After weeks of poring
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The myth of Loki and the master builder - Alex Gendler
627 views / 1 likes - addedDive into the Norse myth of how Loki tricked a stranger into building the great wall of Asgard to keep the realm safe from giants. --Asgard, a realm of wonders, was where the Norse Gods made their home. There Odins great hall of Valhalla towered above the
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The myth of Sisyphus - Alex Gendler
680 views / 0 likes - addedDownload a free audiobook version of "Man's Search for Meaning" and support TED-Ed's nonprofit mission: https://adbl.co/2z7JGWx Check out our full book recommendation: https://bit.ly/2JYUn1y Sisyphus was both a clever ruler who made his city prosperous, a
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05:27
Building the impossible: Golden Gate Bridge - Alex Gendler
415 views / 0 likes - addedExplore the construction of Californias Golden Gate Bridge, and dig into the engineering innovations that made the structure possible.--Stretching 227 meters tall, two towers were assembled to support Californias Golden Gate Bridge. They were just one of
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05:04
Can you solve the dragon jousting riddle? - Alex Gendler
546 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ -- After years of war, the worlds kingdoms have come to an agreement. Every five years, teams representing the elves, goblins, and treefolk will compete in a grand tournament of dragon jousting
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Can you solve the secret sauce riddle? - Alex Gendler
648 views / 1 likes - addedAs a top spy trained in infiltration and safecracking, its up to you to steal the competitions secret sauce recipe. Can you figure out where it's hidden? --One of the top chefs from Pasta Palace has been kidnapped by operatives from Burger Bazaar hoping t
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05:36
Demolition, disease, and death: Building the Panama Canal - Alex Gendler
326 views / 0 likes - addedDiscover what it took to build the Panama Canal, and how this colossal construction project changed the region. --In the 19th century, the California gold rush brought thousands of settlers to America's west coast. But finding gold may have been easier th
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The Egyptian myth of the death of Osiris - Alex Gendler
404 views / 0 likes - addedDig into the Egyptian myth of Osiris, trapped by his brother, the warrior god Set, in a coffin and tossed into the Nile to die. --Long jealous of his older brother Osiris, the god who ruled all of Egypt, the warrior god Set plotted to overthrow him. Hosti
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05:18 Popular
Can you solve the rebel supplies riddle? - Alex Gendler
986 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ Solution to Bonus Riddle: https://brilliant.org/tededmislabelledboxes/ You’re overseeing the delivery of supplies to a rebel base in the heart of enemy territory. To get past customs, all packa
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05:12
Blood, concrete, and dynamite: Building the Hoover Dam - Alex Gendler
224 views / 0 likes - addedDig into the engineering of the Hoover Dam, a concrete arch-gravity dam on the Colorado River that supplies water to the US southwest.--In the early 20th century, the US had expanded from coast to coast, but many cities in the southwest still lacked relia
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Building the world's largest (and most controversial) power plant - Alex Gendler
378 views / 1 likes - addedExplore the creation of Chinas Three Gorges Dam, and find out how the hydroelectric plant generates its power.--In 2018, a single power plant produced more energy than the worlds largest coal-powered and gas-powered plants combined. Chinas Three Gorges Da
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03:38 Popular
Can you solve the giant iron riddle? - Alex Gendler
1,109 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd/ Solution to bonus riddle: https://brilliant.org/TedEdGiantIron/ The family of giants you work for is throwing a fancy dinner party, but there’s a problem — the elder giant’s favorite shirt is w
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Everything changed when the fire crystal got stolen - Alex Gendler
423 views / 0 likes - addedThis riddle was created in partnership with Brilliant. Practice more problem solving here: https://brilliant.org/TedEd/ --Someone has tripped the magical alarms in the Element Temple. When you and the other monks arrive on the scene, you know you have a d
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A day in the life of a Cossack warrior - Alex Gendler
380 views / 0 likes - addedJoin the Cossack soldier Stepan as he tries to keep order in the battalion and help his people regain their independence. --The year is 1676, and a treaty has officially ended hostilities between the Polish-Lithuanian Commonwealth and the Ottoman Empire.
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Khan Academy Live: AP US History
651 views / 0 likes - addedTaking AP US History? Prep for the AP exam with our free live tutoring session. Kim, our history expert, will share tips and strategies for the exam. Study for AP US History on Khan Academy: https://www.khanacademy.org/humanities/us-history/ap-us-history
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BONUS: History of the possessive apostrophe | The Apostrophe | Punctuation | Khan Academy
584 views / 0 likes - addedDavid, Paige, and Jake cover the fascinating history of the possessive apostrophe. Stay tuned for this bonus video! Missed the previous lesson? Watch here: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/v/bonus-history-of-the-ap
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BONUS: History of the apostrophe | The Apostrophe | Punctuation | Khan Academy
463 views / 0 likes - addedThe apostrophe has a bizarre history, including being the name for something that's not really related to grammar at all. David, Paige, and special guest Jake explain. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-a
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Top 15 RICHEST People In History
1,192 views / 0 likes - addedHere are the top 15 richest people to ever live. These billionaires and trillionaires put people like Bill Gates and Jeff Bezos to shame! Like us on Facebook: https://www.facebook.com/TopTrending Follow us on Twitter: https://twitter.com/TopTrending Comme
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2,000 Years of Chinese History! The Mandate of Heaven and Confucius: World History #7
1,100 views / 3 likes - added2,000 Years of Chinese History! The Mandate of Heaven and Confucius: Crash Course World History #7 In which John introduces you to quite a lot of Chinese history by discussing the complicated relationship between the Confucian scholars who wrote Chinese h
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Exploring Other Dimensions - Alex Rosenthal And George Zaidan
877 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/exploring-other-dimensions-alex-rosenthal-and-george-zaidan Imagine a two-dimensional world -- you, your friends, everything is 2D. In his 1884 novella, Edwin Abbott invented this world and called it Flatland. A
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How to Draw Alex Wassabi Easy Chibi | Famous Youtuber
787 views / 1 likes - addedFollow along to learn how to draw Alex Wassabi easy, step by step. Chibi, cute Alex Wassabi drawing. Famous American Youtuber, vlogger and funny youtube creator with Wassabi Productions.
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Choosing between its and it’s | The Apostrophe | Punctuation | Khan Academy
525 views / 1 likes - addedDavid and Paige explain the meaning of two English words that look and sound very similar but act very different: _its_ and _it's_. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe
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Introduction To Nouns | The Parts Of Speech | Grammar | Khan Academy
1,124 views / 0 likes - addedDavid, Khan Academy's resident grammarian, introduces you to the most common English part of speech: the noun. Watch the next lesson: https://youtu.be/ETzngG8N3AU About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a pers
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Alex Honnold Solos The Phoenix (5.13) - Behind The Scenes
146 views / 0 likes - addedOne of the hardest pitches ever free soloed in Yosemite. An intimate look behind the scenes during Alex Honnold's historic 2011 ropeless ascent of The Phoenix (5.13) as told by filmmaker Peter Mortimer. Stream over 150 incredible climbing and adventure fi
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How small are we in the scale of the universe? - Alex Hofeldt
792 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/how-small-are-we-in-the-scale-of-the-universe-alex-hofeldt In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor wa
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RNAi: Slicing, Dicing And Serving Your Cells - Alex Dainis
706 views / 0 likes - addedView full lesson: http://ed.ted.com/lessons/rnai-slicing-dicing-and-serving-your-cells-alex-dainis RNA, the genetic messenger, makes sure the DNA recipe gives your cells exactly what they ordered. But sometimes that means inhibiting some other RNA that go
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Wait For It...The Mongols!: Crash Course World History #17
972 views / 2 likes - addedCrash Course World History is now available on DVD! Visit http://dft.ba/-CCWHDVD to buy a set for your home or classroom. You can directly support Crash Course at http://www.subbable.com/crashcourse Subscribe for as little as $0 to keep up with everything
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BONUS: The Oxford comma | Punctuation | Grammar | Khan Academy
845 views / 0 likes - addedDavid and Paige tackle the great comma debate of our time: Oxford comma or no Oxford comma? Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/appositives-the-comma-punctuation-khan-academy?utm_source=YT&utm
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History of the Holidays: Columbus Day | History
783 views / 0 likes - addedHow Columbus Day came to be celebrated. HISTORY®, now reaching more than 98 million homes, is the leading destination for award-winning original series and specials that connect viewers with history in an informative, immersive, and entertaining manne
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Irregular Plural Nouns, Part II | The Parts Of Speech | Grammar | Khan Academy
931 views / 0 likes - addedThe plural of "whale" is "whales", but what's the plural of "child"? David, Khan Academy's resident grammarian, explains. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower
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04:35 Popular
Introduction To Singular And Plural Nouns | The Parts Of Speech | Grammar | Khan Academy
1,266 views / 0 likes - addedDavid, Khan Academy's resident grammarian, introduces the difference between singular and plural nouns. Watch the next lesson: https://youtu.be/uYgcuyUF7JQ About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalize
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03:59 Popular
Meet the Comma | Punctuation | Grammar | Khan Academy
899 views / 1 likes - addedDavid and Paige introduce you to the superhero of the punctuation world: the comma! Practice this yourself on Khan Academy right now: . Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/
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03:45
Introduction to the possessive | The Apostrophe | Punctuation | Khan Academy
602 views / 0 likes - addedApostrophes can help show when something belongs to someone. Paige and David explain how! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www
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02:34 Popular
Irregular Plural Nouns, Part I | The Parts Of Speech | Grammar | Khan Academy
877 views / 0 likes - addedThe plural of "dog" is "dogs", but what is the plural of "leaf"? Khan Academy's resident grammarian explains. Watch the next lesson: https://youtu.be/n9poHOKkF28 About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a perso
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05:12
Ellipses | Punctuation | Khan Academy
665 views / 0 likes - addedEllipses are three little dots that we use to show a pause or that a portion of a quote has been removed. Learn how to use them in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introd
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07:37
Introduction to reaction quotient Qc | Chemical equilibrium | Chemistry | Khan Academy
646 views / 0 likes - addedIntroduction to the reaction quotient Qc, and how to use the reaction quotient to predict how the reaction concentrations will change. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its
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03:00
Appositives | Punctuation | Grammar | Khan Academy
623 views / 0 likes - addedDavid and Paige, KA’s resident grammarians, cover appositives and how to use commas along with them. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/appositives?utm_source=YT&utm_med
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08:26
Conjugate acid-base pairs | Acids and bases | Chemistry | Khan Academy
579 views / 0 likes - addedIntroduction to conjugate acid-base pairs. Definition and examples of conjugate acid-base pairs. Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivit
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03:36 Popular
Introduction to contractions | The Apostrophe | Punctuation | Khan Academy
930 views / 1 likes - addedApostrophes are great at standing in for missing letters, allowing us to shorten words. Paige and David discuss contractions and the Principle of Least Effort. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/
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08:03 Popular
How To Draw Alex From Minecraft
1,363 views / 2 likes - addedLearn how to draw Alex from Minecraft!
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02:18 Popular
Salutations and valedictions | Punctuation | Grammar | Khan Academy
823 views / 0 likes - addedDavid and Paige, KA’s resident grammarians, talk about how to address and sign off on letters using commas! Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/commas-in-space-and-time-the-comma-punctuation-khan-a
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03:24 Popular
More uses for commas | Punctuation | Grammar | Khan Academy
798 views / 0 likes - addedDavid and Paige, KA’s resident grammarians, discuss tag questions, yes and no statements, and direct address -- all situations where the comma is super useful. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/v/c
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06:08 Popular
Beginning sentences with conjunctions | The parts of speech | Grammar | Khan Academy
780 views / 0 likes - addedIs it okay to begin a sentence with a conjunction like "but" or "because"? Yes. David explains why. Missed the previous lesson? https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/v/correlative-conjunctions?utm_source=YT&utm_medium=D
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07:04 Popular
Dependent and independent clauses | Syntax | Khan Academy
1,278 views / 0 likes - addedIndependent clauses can stand on their own as sentences, but dependent clauses can’t. We’ll take a closer look at what this means. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dependent-and-independent-clauses Wat
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03:32
Three types of sentence | Syntax | Khan Academy
637 views / 0 likes - addedThree essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). Join us as we give examples of each! Practice this yourself on Khan Academy rig
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04:18
How to use italics and underlines | Punctuation | Khan Academy
563 views / 0 likes - addedLearn how to use italics and underlines when writing the titles of works or when emphasizing a particular word or phrase. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-qu
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04:53
Subject-verb agreement | Syntax | Khan Academy
626 views / 0 likes - addedAgreement is the art of making sure that sentence parts agree with one another; you want to make sure that your subjects and verbs match up. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/subject-verb-agreement Watc
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03:00 Popular
Commas in dialogue | Punctuation | Grammar | Khan Academy
1,158 views / 1 likes - added“Today we’re going to talk about using commas in dialogue,” said David and Paige, KA’s resident grammarians. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-in-dialogue?utm_so
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04:11
Advanced (plural) possession | The Apostrophe | Punctuation | Khan Academy
553 views / 0 likes - addedPaige and David talk about using apostrophes to show that something belongs to multiple people. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-apostrophe/e/advanved--plural--possesion Watch
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04:14 Popular
Compound-complex sentences | Syntax | Khan Academy
842 views / 0 likes - addedCompound-complex sentences are compound sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot and use them. Practice this yourself on Khan Academy right now www.khanacademy.org/syntax/e/complex-and-compound-com
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04:19
Dangling modifiers | Syntax | Khan Academy
584 views / 0 likes - addedA modifying word or phrase “dangles” when it doesn’t apply to the word it’s supposed to modify. Learn how to spot and fix this problem! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/dangling-modifiers/ Watch the ne
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05:07 Popular
Complex sentences | Syntax | Khan Academy
769 views / 0 likes - addedComplex sentences are simple sentences with dependent or subordinate clauses added to them. Paige and Rosie explain how to spot them and use them in this video. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/syntax/v/compound-comple
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02:51
Apostrophes and plurals | The Apostrophe | Punctuation | Khan Academy
462 views / 0 likes - addedThere is *one* extremely rare case in which we use apostrophes to make things plural. David and Paige, KA's resident grammarians, discuss this unusual case. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/p
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03:19 Popular
Commas in space and time | The Comma | Punctuation | Khan Academy
818 views / 0 likes - addedLearn how to use commas when writing addresses (in space) and dates (in time). Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/salutations--valedictions--dates--and-addresses Watch t
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06:20
Dashes | Punctuation | Khan Academy
510 views / 0 likes - addedDashes are like little actors—they can behave like colons, pairs of commas, or parentheses. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/introduction-to-the-
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02:52
Three ways to end a sentence | Punctuation | Khan Academy
578 views / 0 likes - addedDavid and Paige, KA’s resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/three-ways-to-end-a
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01:51
Possession for words ending in “s” | The Apostrophe | Punctuation | Khan Academy
500 views / 0 likes - addedDo words that end in "s" still need _'s_ to show possession? David and Paige explain! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-apostrophe/e/introduction-to-the-possessive-case Watch the next lesson: https://www.kha
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01:51
Punctuating a list | Punctuation | Grammar | Khan Academy
578 views / 0 likes - addedLearn how to use commas to punctuate a written list of people, things, actions, or events. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/punctuating-lists?utm_source=YT&utm_medium=
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03:18
Saving Alex! | Totally Spies Official
339 views / 0 likes - addedSam and Clover have finally found Alex! They must be careful: if they open the door, Alex will fall from the building! Subscribe to Totally Spies! https://www.youtube.com/user/TotallySpiesChannel?sub_confirmation=1Every week, join teenage spies Sam, Alex
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02:50
Exclamations | Syntax | Khan Academy
470 views / 0 likes - addedAn exclamation is a sentence that expresses great emotion! David and Paige covered declarative, interrogative, and imperative sentences; now they tackle a fourth type of sentence that ends in an exclamation mark. Find out more! Watch the next lesson: http
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03:48
Recognizing fragments | Syntax | Khan Academy
484 views / 0 likes - addedA sentence fragment is a chunk of language that hasn’t made it all the way to being a working sentence; it might be missing a verb, or there might not be a subject. Learn how to turn a fragment into a sentence in this video! Practice this yourself on Khan
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04:51 Popular
Hyphens vs. dashes | Punctuation | Khan Academy
830 views / 1 likes - addedHyphens and dashes look pretty similar, but their uses are very different! Learn when to use each one in this video. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/dashes-and-hyphens Watch the nex
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02:34
Subjects and predicates | Syntax | Khan Academy
650 views / 0 likes - addedA subject is the noun or pronoun-based part of a sentence, and a predicate is the verb-based part that the subject performs. Let’s explore how that works in context. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/syntax/e/id
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04:29 Popular
Simple and compound sentences | Syntax | Khan Academy
920 views / 0 likes - addedA simple sentence contains one independent clause. A compound sentence contains more than one! Put another way: a simple sentence contains a subject and a predicate, but a compound sentence contains more than one subject and more than one predicate. Pract
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04:07 Popular
Pronoun-antecedent agreement | Syntax | Khan Academy
765 views / 0 likes - addedAn antecedent is “the thing that came before”. When you use a pronoun, it’s standing in for a word you used previously—that’s the antecedent. Join us as we demonstrate how to make sure that your pronouns and antecedents match up with one another: that’s c
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09:03
BONUS VIDEO | Singular They | The parts of speech | Grammar | Khan Academy
512 views / 0 likes - addedYou may have been hearing a lot about the "singular they" recently. But what is it? How does it work, what is its history, and is it grammatical? Let's find out. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-modif
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04:34
What is a sentence? | Syntax | Khan Academy
554 views / 0 likes - addedA sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences. Watch the next lesson:
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04:09
Parentheses | Punctuation | Khan Academy
407 views / 0 likes - addedParentheses set off extra information (such as a writer's remarks, an interruption, or a reference) from the rest of a sentence. Learn how to use them in this video! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneo
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06:15
Which is better: Soap or hand sanitizer? - Alex Rosenthal and Pall Thordarson
450 views / 0 likes - addedDig into the science of how soap breaks down a coronavirus, and the effectiveness of hand sanitizer against a viral outbreak. --Your hands, up close, are anything but smooth. With peaks and valleys, folds and rifts, there are plenty of hiding places for a
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04:35
Commas and introductory elements | Punctuation | Grammar | Khan Academy
522 views / 0 likes - addedIn English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/punctuation/the-comma/e/commas-an
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04:44 Popular
Relative clauses | Syntax | Khan Academy
744 views / 0 likes - addedA relative pronoun is a word like “that” or “which” or “who”, so a relative clause is a clause that begins with a relative pronoun. In the sentence “The dragon who breathed blue fire has retired,” “who breathed blue fire” is a relative clause. Learn more
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07:06 Popular
How To Make Papercraft Alex From Minecraft
1,339 views / 3 likes - addedToday we're learning how to make a papercraft Alex from Minecraft! You'll need a lot of supplies for this project, so be sure to gather those up first: scissors, glue, printable (download below), colored pencils - peach, pink, light green, green, dark gre
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07:57 Popular
Le Chatelier's principle: Worked example | Chemical equilibrium | Chemistry | Khan Academy
936 views / 0 likes - addedA worked example using Le Chatelier's principle to predict how concentrations will shift for different perturbations. Example includes changes in reaction vessel volume, changing amount of solid product, adding inert gas, and adding a catalyst. Chemistry
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05:57 Popular
Phrases and clauses | Syntax | Khan Academy
1,463 views / 0 likes - addedA phrase is any collection of words that behaves like a part of speech, like a noun phrase (“my brother Stu”), an adjectival phrase (“in a different shade of blue”), or an adverbial phrase (“with elegance and tact”). A clause is any noun phrase plus a ver
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05:05
Parallel structure | Syntax | Khan Academy
651 views / 0 likes - addedParallel structure isn’t a set rule, but more of a stylistic choice: it helps sentence elements maintain a pattern. This is a very special episode because it’s Paige’s last video with us as a KA intern! We will miss having Paige as a contributor to the Gr
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04:38
Run-ons and comma splices | Syntax | Khan Academy
592 views / 0 likes - addedA run-on sentence doesn’t separate any of its independent clauses with the punctuation that it needs, and a comma splice incorrectly separates two independent clauses with a comma, instead of a comma-and-coordinating-conjunction. Practice this yourself on
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03:13
Using quotation marks in titles | Punctuation | Khan Academy
560 views / 0 likes - addedLearn how to use quotation marks to title things like poems, songs, and episodes of TV shows. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/miscellaneous-punctuation/e/italics--underlines--and-quotes/ Watch the next lesson:
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05:03 Popular
Indefinite Pronouns | The parts of speech | Grammar | Khan Academy
1,129 views / 0 likes - addedDavid, Khan Academy's Grammar Fellow, covers three nifty features of indefinite pronouns, which are pronouns that are just a little vague, y'know? Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspee
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06:47 Popular
Noble Gas Configuration | Electronic Structure Of Atoms | Chemistry | Khan Academy
1,484 views / 0 likes - addedHow to write electron configurations for atoms and monatomic ions using noble gas configuration Chemistry on Khan Academy: Did you know that everything is made out of chemicals? Chemistry is the study of matter: its composition, properties, and reactivity
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02:45
Progressive Aspect | The parts of speech | Grammar | Khan Academy
518 views / 0 likes - addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
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01:32
Simple Aspect | The parts of speech | Grammar | Khan Academy
603 views / 0 likes - addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
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04:47
Who versus whom | The parts of speech | Grammar | Khan Academy
589 views / 0 likes - addedWhen do you use who, and when do you use whom? David, KA's grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/relative-pronouns?utm_source=YT&utm_medium=Desc&u
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02:31
Perfect Aspect | The parts of speech | Grammar | Khan Academy
682 views / 0 likes - addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
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02:01 Popular
The present tense | The parts of speech | Grammar | Khan Academy
801 views / 0 likes - addedHow do we talk about things that are happening right now? Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-past-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Misse
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01:26
Introduction to verbs | The parts of speech | Grammar | Khan Academy
611 views / 0 likes - addedLet's explore what verbs are, and what they do! David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/identifying-verbs?utm_source=YT&utm_medium
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04:33 Popular
Coordinating conjunctions | The parts of speech | Grammar | Khan Academy
989 views / 0 likes - addedCoordinating conjunctions connect parts of sentences to each other. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/meet-the-conjunction?utm_source=YT&utm_me
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02:00 Popular
The past tense | The parts of speech | Grammar | Khan Academy
925 views / 0 likes - addedWhen you want to talk about events that have already happened, you use the past tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/the-future-tense-verbs-the-parts-of-speech?utm_source=YT&utm_medium=
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02:50 Popular
The future tense | The parts of speech | Grammar | Khan Academy
957 views / 0 likes - addedWhen you want to talk about the future in English, you use the future tense. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/v/linking-verbs-the-parts-of-speech-grammar?utm_source=YT&utm_medium=Desc&utm_ca
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03:15
Personal pronouns | The parts of speech | Grammar | Khan Academy
646 views / 0 likes - addedLet's meet the personal pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/meet-the-personal-pronoun?utm_source=YT&utm_medium=Desc&utm_campaign=grammar Watch the next less
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03:12 Popular
Correlative conjunctions | The parts of speech | Grammar | Khan Academy
999 views / 0 likes - addedCorrelative conjunctions work in pairs to connect parts of sentences. David teaches you how they do it! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/correlative-conjuntions?u
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05:27 Popular
Subordinating conjunctions | The parts of speech | Grammar | Khan Academy
1,203 views / 0 likes - addedSubordinating conjunctions join two parts of complex sentences––independent clauses to dependent clauses. David explains how. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/conjunctions/e/coo
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01:50
Introduction to verb aspect | The parts of speech | Grammar | Khan Academy
567 views / 0 likes - addedIf verb tense allows you to control the past, the present, and the future, then aspect gives you even finer control over time. David, Khan Academy's resident grammarian, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.o
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02:53 Popular
The truly irregular verbs | The parts of speech | Grammar | Khan Academy
1,028 views / 0 likes - addedSome irregular verbs just won't be categorized. They don't fit into neat little boxes. These are those verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs/e/intro-to-irregular
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04:53
The Case Of The Missing Fractals - Alex Rosenthal And George Zaidan
683 views / 1 likes - addedView full lesson: http://ed.ted.com/lessons/the-case-of-the-missing-fractals-alex-rosenthal-and-george-zaidan A bump on the head, a mysterious femme fatale and a strange encounter on a windswept peak all add up to a heck of a night for Manny Brot, Private
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02:54 Popular
Helping verbs | The parts of speech | Grammar | Khan Academy
1,146 views / 0 likes - addedWe've established that verbs can show actions and link ideas together. Now, let's talk about how some verbs can be used to help other verbs. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/gra
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02:46 Popular
Introduction to Grammar | Grammar | Khan Academy
961 views / 0 likes - addedKhan Academy Grammarian David Rheinstrom welcomes you to his favorite topic: the study of language, its rules, and its conventions. By understanding English – by speaking it, by writing it, by reading this very sentence – you are a grammarian yourself! Wa
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02:55 Popular
Emphatic pronouns | The parts of speech | Grammar | Khan Academy
889 views / 0 likes - addedSometimes we use reflexive pronouns like "myself" and "ourselves" for emphasis in a sentence, like, "If you won't help me, then I'll do it myself!" KA's Grammar Fellow, David, explains this usage. Practice this yourself on Khan Academy right now: https://
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02:00 Popular
What is a pronoun? | The parts of speech | Grammar | Khan Academy
1,066 views / 0 likes - addedPronouns are words that can replace nouns, like the way "it" replaces "elephant" in "I looked at the elephant. It was grey." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/e/the-q
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03:14
The irregular verb gets taken for a ride | Grammar | Khan Academy
581 views / 0 likes - addedThis group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
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01:56 Popular
Relative pronouns | The parts of speech | Grammar | Khan Academy
1,126 views / 0 likes - addedWe use the relative pronouns to connect clauses together, like "the man *who sold the world* is coming over for dinner." David, KA's Grammar Fellow, explains. Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofspeech/the-pronoun/
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05:10 Popular
Reflexive pronouns | The parts of speech | Grammar | Khan Academy
1,083 views / 0 likes - addedWe use reflexive pronouns (like "herself" and "ourselves") when the subject and the object of a sentence are the same thing. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/gra
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05:41 Popular
That versus which | The parts of speech | Grammar | Khan Academy
964 views / 0 likes - addedMuch has been made of the distinction between "that" and "which" in English, but it can mostly be summed up in two points: 1. "That" doesn't work so well with commas. 2. "Which" doesn't work so well with people. David the Grammarian explains. Watch the ne
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05:18 Popular
Pronoun number | The parts of speech | Grammar | Khan Academy
862 views / 0 likes - addedThe difference between something being singular or plural is what we call 'grammatical number' in English. Here's how that idea applies to pronouns! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofsp
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03:02 Popular
Linking verbs | The parts of speech | Grammar | Khan Academy
1,601 views / 0 likes - addedIn a previous video, we established that one thing verbs can do is show actions, like "the bear runs." Verbs can also link ideas to one another, like "the bear looks cheerful." Watch the next lesson: https://www.khanacademy.org/humanities/grammar/partsofs
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04:53 Popular
Modal verbs | The parts of speech | Grammar | Khan Academy
1,461 views / 0 likes - addedThere's a class of helper verbs known as modals that we use to express a bunch of conditions: we can use them to give advice, make guesses at how necessary or likely something is, make requests of people, and so on. They're super useful. Practice this you
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02:11
Perfect progressive aspect | The parts of speech | Grammar | Khan Academy
532 views / 0 likes - addedWe use the perfect progressive aspect to talk about an action that was once ongoing, but has since completed, like "I had been waiting for twenty minutes." Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/pa
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04:50
Introduction to the apostrophe | The Apostrophe | Punctuation | Khan Academy
603 views / 0 likes - addedDavid and Paige, KA’s resident grammarians, introduce a new piece of punctuation: the apostrophe! Practice this yourself on Khan Academy right now: https://www.khanacademy.org/the-comma/e/introduction-to-the-apostrophe Watch the next lesson: https://www.k
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04:21 Popular
ALEX HAS BEEN KIDNAPPED!!! | Totally Spies Official
764 views / 1 likes - addedOH NO! Alex has been kdinapped! Sam and Clover need to find her, ASAP! If only the could get hold of Jerry... Subscribe to Totally Spies! https://www.youtube.com/user/TotallySpiesChannel?sub_confirmation=1Every week, join teenage spies Sam, Alex and Clove
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05:34
Subject and object pronouns | The parts of speech | Grammar | Khan Academy
527 views / 0 likes - addedBefore we get any further with pronouns, let's cover what the difference between a subject and an object pronoun is, because the distinction between those two concepts will start coming up a good deal. Practice this yourself on Khan Academy right now: htt
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07:14 Popular
Calculating internal energy and work example | Chemistry | Khan Academy
1,087 views / 0 likes - addedWorked example calculating the change in internal energy for a gas using the first law of thermodynamics. Watch the next lesson: https://www.khanacademy.org/science/chemistry/thermodynamics-chemistry/internal-energy-sal/v/specific-heat-and-latent-leat-of-
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06:52 Popular
Introduction To Partial Pressure | Gases And Kinetic Molecular Theory | Chemistry | Khan Academy
1,593 views / 0 likes - addedDefinition of partial pressure and Dalton's law of partial pressure. Example of calculating partial pressure of a gas in a mixture from the total pressure and partial pressure of the other gases in the mixture. Chemistry on Khan Academy: Did you know that
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07:50 Popular
pH and pKa relationship for buffers | Chemistry | Khan Academy
827 views / 0 likes - addedHow the Henderson-Hasselbalch equation can be used to look at the ratio of conjugate acid and base using relationship between buffer pH and pKa. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acid-base-equilibrium/buffer-solutions/v/
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04:39 Popular
Grammatical person and pronouns | The parts of speech | Grammar | Khan Academy
863 views / 0 likes - addedThere's this idea in grammar called grammatical person that helps describe who's being talked about in a sentence. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/parts
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01:46 Popular
Introduction to verb tense | The parts of speech | Grammar | Khan Academy
799 views / 0 likes - addedAn understanding of verb tense will make you into a TIME WIZARD, with the ability to control the past, the present, and the future – with your words, anyway. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/
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03:11 Popular
The vowel-shift irregular verb | The parts of speech | Grammar | Khan Academy
1,182 views / 0 likes - addedThis group of irregular verbs have vowel sounds that change in a predictable way, when they go from the present to the past tense. Practice this yourself on Khan Academy right now: https://www.khanacademy.org/humanities/grammar/partsofspeech/grammar-verbs
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04:52
Possessive pronouns | The parts of speech | Grammar | Khan Academy
662 views / 0 likes - addedWe can use pronouns to show possession relationships, describing what things belong to which people, like "her shoe" or "the book is mine." Possessive pronouns come in two flavors: adjective and noun! David, KA's resident grammarian, covers the difference
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13:33 Popular
Japan in the Heian Period and Cultural History: Crash Course World History 227
1,307 views / 7 likes - addedIn which John Green teaches you about what westerners call the middle ages and the lives of the aristocracy...in Japan. The Heian period in Japan lasted from 794CE to 1185CE, and it was an interesting time in Japan. Rather than being known for a thriving
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03:29
Introduction to irregular verbs | The parts of speech | Grammar | Khan Academy
562 views / 0 likes - addedWords like "walk" and "look" are regular verbs – they behave in a predictable way. But there's a whole class of words in English, called irregular verbs, that are harder to predict. David, KA's Grammar Fellow, explains. Practice this yourself on Khan Acad
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06:13 Popular
Rate constant k from half-life example | Knetics | Chemistry | Khan Academy
920 views / 0 likes - addedExample problem showing how to find the rate constant k from the half-life of a first order reaction. Watch the next lesson: https://www.khanacademy.org/science/chemistry/chem-kinetics/copy-of-kinetics/v/second-order-reaction-with-calculus?utm_source=YT&u
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05:53
Comparing Q vs K example | Chemical equilibrium | Chemistry | Khan Academy
573 views / 0 likes - addedA worked example using reaction quotient Q to predict how concentrations will shift so the reaction can get to equilibrium. Watch the next lesson: https://www.khanacademy.org/science/chemistry/acids-and-bases-topic/acids-and-bases/v/arrhenius-definition-o
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01:53
The funky -ed irregular verb | The parts of speech | Grammar | Khan Academy
567 views / 1 likes - addedThese are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "-ed" sound. It's just spelled differently. Practice this yourself on Khan Ac
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07:33 Popular
Ways to get a buffer solution | Chemistry | Khan Academy
1,246 views / 0 likes - addedDescribes the two main situations where you get a buffer: making a buffer for a specific pH by combining a weak acid and a salt containing the conjugate base, and using a neutralization reaction by combining a weak acid and a strong base. Watch the next l
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06:28 Popular
The worlds largest organism - Alex Rosenthal
859 views / 0 likes - addedDiscover the worlds largest organism: Pando, an enormous and ancient quaking aspen, and find out how it became so huge.--The largest animal in the world is the blue whale, which weighs a massive 150 metric tons. Even so, its not remotely close to being th
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04:57
Irregular plural nouns | foreign plurals | The parts of speech | Grammar | Khan Academy
629 views / 0 likes - addedYou don't need to know how to speak Latin and Greek in order to understand English, but some words in English come from those languages. It's helpful to know how some Greek and Latin words change from singular to plural. Practice this yourself on Khan Aca
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01:37 Popular
Translation Example | Transformations | Geometry | Khan Academy
1,644 views / 0 likes - addedTranslation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-translations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campa
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02:28 Popular
Drawing Line Of Reflection | Transformations | Geometry | Khan Academy
1,044 views / 0 likes - addedDrawing line of reflection Watch the next lesson: https://www.khanacademy.org/math/geometry/transformations/hs-geo-reflections/v/determining-the-line-of-reflection?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Missed the previous lesson? https://www
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04:47
Ethical dilemma: Who should you believe? - Alex Worsnip
190 views / 0 likes - addedPuzzle through the ethical dilemma of a spouse accused of murder and decide: do you believe your spouse or the evidence?--Youre sitting on the couch, when you hear a knock on the door. The police have arrived to arrest your spouse for murder. This accusat
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01:25 Popular
Using Rotation Widget | Transformations | Geometry | Khan Academy
1,482 views / 0 likes - addedUsing rotation widget Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-rotations-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_campai
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05:02 Popular
Positive And Negative Slope | Algebra I | Khan Academy
1,490 views / 0 likes - addedPositive and negative slope Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/slope/v/similar-triangles-to-prove-that-the-slope-is-constant-for-a-line?utm_source=YT&utm_medium=Desc&utm_campaign
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08:13 Popular
Points After Rotation | Transformations | Geometry | Khan Academy
1,116 views / 1 likes - addedPoints after rotation Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-1?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://w
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02:46 Popular
Defining Rotation Example | Transformations | Geometry | Khan Academy
1,690 views / 0 likes - addedDefining rotation example Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/defining-rotations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson
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01:48 Popular
Using Reflection Tool | Transformations | Geometry | Khan Academy
1,159 views / 0 likes - addedUsing reflection tool Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/rigid-transformations-intro/e/performing-reflections-on-the-coordinate-plane?utm_source=YT&utm_medium=Desc&utm_camp
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05:29
Can you solve the human cannonball riddle? - Alex Rosenthal
270 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--They call you the human cannonball. Your act involves flying through rings of fire, bouncing through a trampoline course, and catching the trapezist in the grand finale. Todays pre-flight test
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16:41
Why It's Almost Impossible to Climb 15 Meters in 5 Secs. (ft. Alex Honnold) | WIRED
466 views / 1 likes - addedIn 2020 climbing will be an official Olympic sport with three events -- lead, bouldering and speed climbing. The fastest time up the standard 15 meter speed wall is 5.48 seconds. Could it be faster? WIRED's Robbie Gonzalez climbs with junior champion Jord
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04:51
Can you solve the magical maze riddle? - Alex Rosenthal
45 views / 0 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--Today is the annual wizard tournament featuring competitors from three schools, and youre in charge. The wizards have entered the maze and compete in your chosen events in utmost secrecy; only
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01:55 Popular
Drawing Image Of Translation | Transformations | Geometry | Khan Academy
1,179 views / 0 likes - addedPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-translations/e/translations?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson: https://www.khanacademy.org
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06:19
Can you solve the rogue submarine riddle? - Alex Rosenthal
289 views / 1 likes - addedPractice more problem-solving at https://brilliant.org/TedEd--Smuggling yourself aboard the rogue submarine was the easy part. Hacking into the nuclear missile launch override a little harder. And youve got a problem: you dont have the override code. You
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03:37 Popular
Scatterplots — Harder Example | Math | New SAT | Khan Academy
1,319 views / 0 likes - addedWatch Sal work through a harder Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q5-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
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04:34 Popular
Scatterplots — Basic Example | Math | New SAT | Khan Academy
1,602 views / 0 likes - addedWatch Sal work through a basic Scatterplots problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q4-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the
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05:03 Popular
Units — Harder Example | Math | New SAT | Khan Academy
803 views / 0 likes - addedWatch Sal work through a harder Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q7-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previo
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03:00 Popular
Units — Basic Example | Math | New SAT | Khan Academy
815 views / 0 likes - addedWatch Sal work through a basic Units problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the previou
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01:45 Popular
Percents — Harder Example | Math | New SAT | Khan Academy
748 views / 0 likes - addedWatch Sal work through a harder Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
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03:14
Percents — Basic Example | Math | New SAT | Khan Academy
695 views / 0 likes - addedWatch Sal work through a basic Percents problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-problem-solving-data-analysis/v/sat-math-q2-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the prev
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05:25 Popular
Complex Numbers — Harder Example | Math | New SAT | Khan Academy
1,031 views / 0 likes - addedWatch Sal work through a harder Complex numbers problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-tips-planning/new-sat-about-sat/v/walk-through-sat-practice-platform?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Mi
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10:32 Popular
Rotating About Arbitrary Point | Transformations | Geometry | Khan Academy
860 views / 0 likes - addedRotating about arbitrary point Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/geometry/transformations/hs-geo-rotations/e/rotations-2?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry Watch the next lesson:
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02:49
Circle Equations — Harder Example | Math | New SAT | Khan Academy
646 views / 0 likes - addedWatch Sal work through a harder Circle equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s3-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pr
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01:53 Popular
Circle Equations — Basic Example | Math | New SAT | Khan Academy
767 views / 0 likes - addedWatch Sal work through a basic Circle equations problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s8-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
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03:43
Right Triangle Geometry — Harder Example | Math | New SAT | Khan Academy
607 views / 0 likes - addedWatch Sal work through a harder Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s4-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed
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08:17 Popular
Right Triangle Geometry — Basic Example | Math | New SAT | Khan Academy
919 views / 0 likes - addedWatch Sal work through a basic Right triangle geometry problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s7-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed
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03:18 Popular
Congruence And Similarity — Harder Example | Math | New SAT | Khan Academy
1,168 views / 0 likes - addedWatch Sal work through a harder Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s7-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Miss
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04:19 Popular
Congruence And Similarity — Basic Example | Math | New SAT | Khan Academy
1,577 views / 0 likes - addedWatch Sal work through a basic Congruence and similarity problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s6-harder?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Misse
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04:10 Popular
Circle Theorems — Harder Example | Math | New SAT | Khan Academy
1,480 views / 0 likes - addedWatch Sal work through a harder Circle theorems problem. Watch the next lesson: https://www.khanacademy.org/test-prep/new-sat/new-sat-math/new-sat-additional-topics-math/v/sat-math-s8-easier?utm_source=YT&utm_medium=Desc&utm_campaign=NewSAT Missed the pre
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