Search Results: "montana state flag meaning"

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03:29
Introduction to irregular verbs | The parts of speech | Grammar | Khan Academy

568 views / 0 likes - added 6 years ago

Words 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
06:27
Why roller coaster loops aren't circular

178 views / 0 likes - added 1 year ago

The G forces were out of this world.Subscribe and turn on notifications so you don't miss any videos: http://goo.gl/0bsAjO If youve ever been on a modern looping roller coaster, youve probably experienced a thrilling, safe, and mostly comfortable ride. Bu
03:55
The Earth Is Running Out of Sand and It Could Cause a Global Crisis

653 views / 0 likes - added 6 years ago

Much of the world’s construction is reliant on sand, and we’re running out of it. What could that mean next? Skyscrapers of the Future Will Be Engineered to Copy Nature - https://youtu.be/-OPGQ9EhDZM Read More: Construction: limit China's sand mining http
03:14
This Nuclear Robot Could Tunnel for Alien Life on Europa

384 views / 0 likes - added 5 years ago

This nuclear-powered tunneling robot could one day find life on Europa. Here’s how it works. Thumbnail image courtesy Alexander Pawlusik, LERCIP Internship Program, NASA Glenn Research Center. NASA’s Crazy Plan to Send a Space Submarine to Titan - https:/
04:52
Possessive pronouns | The parts of speech | Grammar | Khan Academy

670 views / 0 likes - added 6 years ago

We 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
04:14 Popular
How Much Acceleration Can the Human Body Take?

1,241 views / 0 likes - added 5 years ago

Humans want to reach the super speeds for travel across the globe or even other planets, but how much force can our bodies handle? Meet the Man Who Strapped Himself to a Rocket, For Science - https://youtu.be/HV4JzoeaWTQ For more epic stories of innovatio
14:48
Post-World War I Recovery: Crash Course European History #36

466 views / 0 likes - added 4 years ago

In which John Green looks at Europe's attempts to recover from the devastation of World War I and forge a lasting peace. The peace did not last. Today we're talking about the economic cultural recovery of the 1920s, and the economic depression of the 1930
03:09 Popular
Simplifying Square Roots | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,769 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/radical-radicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.kh
07:19
A Bomb Exploded on Apollo 13, Here’s What Happened Next | Apollo

504 views / 2 likes - added 5 years ago

When an explosion shutdown the main Apollo 13 spacecraft, NASA was put on the edge of a catastrophic disaster. Mission Control had to figure out how to get the astronauts home or they’d be stranded in space. Check out the entire Apollo series here!: https
05:12
Apollo 10 Almost Crashed Into the Moon | Apollo

581 views / 0 likes - added 5 years ago

The missions before the lunar landing were designed to test out some of the most difficult manoeuvres of the Apollo Program. During Apollo 10, the Lunar Module experienced a malfunction that left the astronauts spinning out of control. Check out the entir
04:49 Popular
What's the difference between hibernation and sleep? - Sheena Lee Faherty

951 views / 0 likes - added 6 years ago

Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/what-s-the-difference-between-hibernation-and-sleep-sheena-faherty The Arctic Ground Squirrel hibernates by burrowing under the permafrost and slipping
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05:25
Why Do Rocks the Size of Cars Suddenly Break From Cliffs?

441 views / 0 likes - added 5 years ago

Random rockfalls are still one of the biggest mysteries in geology - and figuring out what triggers them is an urgent quest in an area with millions of annual visitors. Will Supercomputers Create Virtual Maps of Your Body in the Future? - https://youtu.be
06:03
This Is Not a Real Explosion, Here’s How Physics Made It Happen

441 views / 0 likes - added 5 years ago

The fireballs that light up the big screen are rooted in physics, careful calculations, and computer-generated algorithms. These Hybrid Metallic Crystals Are Chemistry’s New Miracle Materials - https://youtu.be/K2u3jn3CuEA Read More How Hollywood Pulled O
09:36 Popular
Negative Numbers Introduction | Negative Numbers And Absolute Value | Pre-Algebra | Khan Academy

2,222 views / 0 likes - added 8 years ago

Mysterious negative numbers! What ARE they? They are numbers less than zero. If you understand the nature of below zero temperatures, you can understand negative numbers. We'll help. Practice this lesson yourself on KhanAcademy.org right now: https://www.
12:21 Popular
What's Behind the YouTube Algorithm? (Part 1 of 3)

791 views / 1 likes - added 5 years ago

There are over one billion users on YouTube with over 400 hours of content released every minute. How does YouTube know what to show you? Part 2 of 3 - https://youtu.be/fJuVlmfW5ns Part 3 of 3 - Coming soon! Read More: How an ex-YouTube insider investigat
11:04
How Close Are We to Creating a Lightsaber?

467 views / 1 likes - added 5 years ago

Lightsabers might be elegant weapons for a more civilized age, but today, they only exist in the world of fiction. Could we use modern technology to create the most famous movie weapon of all time? May the Fourth be with you! Find Dr. Patrick Johnson's bo
05:27
Why Don’t We Have Functional Biofuel Yet?

364 views / 0 likes - added 5 years ago

Alternative fuels, like ethanol and algae, have been around for years, yet there have been obstacles hindering these biofuels' take over the market. Here's why. Are We Getting Closer to Thorium Nuclear Fuel? - https://youtu.be/bcjYwxrUERg Read More: Biofu
02:59
Why is California always on fire?

667 views / 1 likes - added 5 years ago

Humans are making the problem worse. Can we get out of nature’s way, for our own good? Subscribe to our channel! http://goo.gl/0bsAjO Wildfires are intensifying in California — but “wild”fires might be a misnomer at this point, because humans are responsi
05:53
Never-Before-Seen Footage Uncovers Antarctica’s First Scientific Missions

505 views / 0 likes - added 6 years ago

During the Cold War, Antarctica was primed for conquest. Here’s how it became an international science laboratory. This NASA Mission Uses Cold War Planes to Map the World's Largest Island https://www.youtube.com/watch?v=oiQq9kWhGxI Subscribe! https://www.
13:08
What Cats Teach Us About Happiness | A Cat's Philosophy

223 views / 0 likes - added 2 years ago

Most of the time, cats come across as utterly indifferent. They dont seem to care about other cats and arent too attached to their owners. But does this mean that cats are immoral, heartless creatures? Are cats, from a philosophical viewpoint, devoid of e
02:20
Grace Vanderwaal - Be True to Your School (From the Disney+ Original Film "STARGIRL")

588 views / 3 likes - added 4 years ago

Stream Stargirl, an Original Movie, on Disney+. Disney+ is the ultimate streaming destination for entertainment from Disney, Pixar, Marvel, Star Wars, and National Geographic. Access it all at https://disneymusic.co/JoinDisneyPlus?IQid=dmvevo."Be True to
04:29
How Bacteria Make It Rain (with Kim Prather) – Speaking of Chemistry Road Trip

605 views / 0 likes - added 7 years ago

Did you know that the ocean launches bacteria and other goo into the atmosphere? And that those particles can seed clouds? Atmospheric chemist Kimberly Prather of UCSD and the Scripps Institution of Oceanography drops some serious knowledge on us. ↓↓More
09:16 Popular
Adding/subtracting Negative Numbers | Pre-Algebra | Khan Academy

1,356 views / 0 likes - added 8 years ago

Adding and subtracting negative numbers Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/negatives-absolute-value-pre-alg/mult-div-negatives-pre-alg/v/multiplying-positive-and-negative-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=
05:17 Popular
Why was the Rosetta Stone so important? - Franziska Naether

968 views / 0 likes - added 3 months ago

Dig into how scholars decoded the writing on the Rosetta Stone, and how this helped them understand ancient hieroglyphs.--For centuries, scholars puzzled over the hieroglyphs they found carved onto ancient Egyptian ruins, tablets, and papyri. But in 1799,
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04:16
How Much Heat Can Your Body Take Before Killing You?

581 views / 0 likes - added 5 years ago

Our world is getting undeniably hotter, and parts of it could soon be too hot for human survival. But how could hot temperatures actually kill you? Waves Can Tell Us A Lot About Climate Change, But You Have to Catch Them First - https://youtu.be/toeoYNQNZ
04:10
Wireless Electricity Is Coming, Here’s Where We’re At

378 views / 0 likes - added 5 years ago

Imagine a world where charging cords don't exist and every device is powered as soon you walk into a room. Well, soon that might be a reality. Disney Invented A Room Where Your Phone Will Never Die - https://www.youtube.com/watch?v=IWjsXjVc_LE Read More:
13:55
Cetaceans, the Giants of the Open Ocean

317 views / 2 likes - added 3 years ago

The wonderful world of whales and dolphins. Below the waves lies a world of giants. Out in the open ocean, whales and dolphins are well-suited for to a life of wandering, traversing thousands of miles each year in search of krill blooms or breeding ground
03:18 Popular
Robot Spy Seal Vs Great White Shark

751 views / 3 likes - added 4 years ago

#Seal #SpyInTheWild #GreatWhiteSharkRobot Spy Seal spots a great white shark approach an oblivious young seal - but will Spy Seal and the seal escape?Clip taken from episode 3 'The Islands' of our brand new second series of Spy in the Wild, narrated by Da
03:20
Scientists Are Close To Eliminating Pain, Here’s How

399 views / 0 likes - added 5 years ago

How we might experience the unpleasantness of pain might come down to these 150 neurons in mouse brains. How Close Are We to Downloading the Human Brain? - https://youtu.be/DE5e5zF6a-8 Read More: Scientists Find Brain Cells That Make Pain Hurt https://www
10:16
Most Expensive Fails!

400 views / 2 likes - added 10 months ago

Create the business of your dreams! https://bit.ly/ShopifyxBeastReactsCHECK OUT THESE CHANNELS OR ELSErochelle.whohttps://www.tiktok.com/@rochelle.who/video/71560873357911688119NEWShttps://www.youtube.com/watch?v=ZvpliWVmkaAJennihttps://www.youtube.com/wa
09:35
Are Microbes Good or Bad for Humans?

332 views / 0 likes - added 4 years ago

Where is the line between good and bad microorganisms and why do we seem to know so much more about the bad ones? Follow Journey to the Microcosmos:Twitter: https://twitter.com/journeytomicroFacebook: https://www.facebook.com/JourneyToMicroMore from Jams
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Basic Multiplication | Multiplication And Division | Arithmetic | Khan Academy

1,831 views / 2 likes - added 8 years ago

Introduction to multiplication Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplication-division/multiplication_fun/e/multiplication_0.5?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Wa
04:57
Irregular plural nouns | foreign plurals | The parts of speech | Grammar | Khan Academy

642 views / 0 likes - added 6 years ago

You 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
12:49 Popular
Scientific Notation Examples | Pre-Algebra | Khan Academy

1,167 views / 0 likes - added 8 years ago

More scientific notation examples Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/e/scientific_notation?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra W
15:15 Popular
Deep Time: Crash Course Astronomy #45

733 views / 0 likes - added 8 years ago

As we approach the end of Crash Course Astronomy, it’s time now to acknowledge that our Universe’s days are numbered. Stars will die out after a few trillion years, protons will decay and matter will dissolve after a thousand trillion trillion trillion ye
18:00
Fun Summer Science!

523 views / 0 likes - added 6 years ago

The sun is out and Jessi and Squeaks are ready to perform all kinds of fun outdoor science experiments! Let's take a look at some of the fun activities they've done before, like making a kite, building a solar tower, blowing bubbles, and of course, making
09:02
The physics of music: playing fire, ice and jelly trumpets - with Anna Ploszajski

106 views / 0 likes - added 8 months ago

Discover the physics of music, as Anna demonstrates how you cancreate a functioning trumpet from weird and wonderful materials.Watch Anna's full lecture on materials science here: https://www.youtube.com/watch?v=YV6XAfZcCCESubscribe for regular science vi
05:25
Scientists Are Using Your Body’s Bacteria To Battle Cancer, Is It Working?

489 views / 0 likes - added 5 years ago

Bacteria can arguably be our body’s worst nightmares. But what if they could work to kill tumors? Two-Thirds of All Cancers Are Caused by One Thing: Your DNA - https://www.youtube.com/watch?v=ZZUk0gF_-T4 Get 20% off http://www.domain.com domain names and
05:51 Popular
Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

2,134 views / 0 likes - added 8 years ago

Introduces the concept of equivalent fractions Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/equivalent-fractions-pre-alg/e/equivalent_fractions?utm_source=YT&utm_medium=Desc&utm
09:07
How Close Are We to Controlling Machines With Our Minds?

423 views / 0 likes - added 4 years ago

From outsmarting the self check-out to providing options for patients with communication disorders, merging mind with machine could be the next frontier for humanity. How close are we to controlling machines with our minds?Read more:This New Mind-Controll
03:21 Popular
Introduction To Perimeter | Measurement | Pre-Algebra | Khan Academy

788 views / 0 likes - added 8 years ago

Find perimeter by adding side-lengths of various figures. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/perimeter/e/perimeter_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Wa
00:56 Popular
Counting With Small Numbers | Counting | Early Math | Khan Academy

896 views / 0 likes - added 8 years ago

Learn how to count squirrels and horses. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/e/counting-out-1-20-objects?utm_source=YT&utm_medium=Desc&
05:20 Popular
Order Of Operations: PEMDAS | Arithmetic Properties | Pre-Algebra | Khan Academy

1,915 views / 0 likes - added 8 years ago

Work through another challenging order of operations example with only positive numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/order_of_operations/e/order_of_operations
03:49
The Science Nobel Prizes Explained in 3 Minutes

427 views / 0 likes - added 5 years ago

Science that’s worthy of a Nobel Prize is bound to be complicated. Here’s everything you need to know about this year’s winners. How To Win A Nobel Prize - https://youtu.be/4a1_3aW-VD8 Read More: The Nobel Prize in Physics 2018 https://www.nobelprize.org/
27:15
The Most Misunderstood Concept in Physics

131 views / 0 likes - added 11 months ago

One of the most important, yet least understood, concepts in all of physics. Head to https://brilliant.org/veritasium to start your free 30-day trial, and the first 200 people get 20% off an annual premium subscription.If you're looking for a molecular mo
04:30
Do Humans Have the Ability To Sniff Out Bombs?

519 views / 0 likes - added 6 years ago

We use dogs as our go-to sniffers for bombs and rescue missions. But how does our sense of smell compare? What Does Space Smell Like? - https://youtu.be/Dn23GbsWJjE Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Get 15% off http://www.doma
04:33
Diamond Nuclear Batteries Are Forever… Sort Of

473 views / 0 likes - added 5 years ago

Batteries that run on BETA DECAY?! How exactly does a nuclear diamond battery work and why would we even want one? This Fluoride Battery Could Mean Phone Batteries That Last a Week - https://youtu.be/kPXQ6zNFFaI Read More: Nuclear Battery http://www.ijlem
03:36 Popular
Approximating Irrational Number Exercise Example | Pre-Algebra | Khan Academy

1,513 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/order-of-operations/rational-irrational-numbers/e/approximating-irrational-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex
03:47
Why Scientists Used Graphene Nanoribbons to Engineer Bionic Mushrooms

477 views / 0 likes - added 5 years ago

This is the first time researchers have created an "engineered symbiosis" by combining bacteria with nanomaterials to produce the next generation of bionic architectures. Why Twisted Light Holds the Key to Radically Faster Internet - https://youtu.be/Cvts
09:50 Popular
Adding And Subtracting Fractions | Fractions | Pre-Algebra | Khan Academy

2,133 views / 1 likes - added 8 years ago

How to add and subtract fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/fractions-unlike-denom-pre-alg/e/adding_fractions?utm_source=YT&utm_medium=Desc&utm_campaign=PreA
07:00
Abstract-ness | Introduction To Algebra | Algebra I | Khan Academy

642 views / 0 likes - added 8 years ago

The general idea behind the word 'abstract' Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/the-beauty-of-algebra?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? h
05:32
What Happens If Earth Loses Its Clouds?

361 views / 0 likes - added 5 years ago

Clouds are essential to regulating Earth's temperature, but what happens if they disappear? Why a Half Degree Rise in Global Temperature Would Be Catastrophic - https://youtu.be/teZk3NLU_7M Read More: A World Without Clouds https://www.quantamagazine.org/
04:57
These Liquid-Repelling Materials Defy Nature’s Design, Here’s How

462 views / 0 likes - added 5 years ago

Materials with liquid-repelling properties are for more than just your phone. They can reduce drag for boats and help heat transfer at nuclear plants. Here’s how scientists are making these seemingly impossible materials. These Strange Metals Could Make E
03:53 Popular
Plotting Basic Fractions On The Number Line | Fractions | Pre-Algebra | Khan Academy

1,373 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/understanding-fractions-pre-alg/e/fractions_on_the_number_line_1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the nex
06:52
Apollo 1's Fatal Fire Almost Ended the Spaceflight Program | Apollo

492 views / 0 likes - added 5 years ago

All three Apollo 1 astronauts were killed during a pre-launch test. In the months leading up to the disaster, there were several red flags that cemented the crew's fate. This Is How the Apollo Program Began: https://www.youtube.com/watch?v=2uyTgdzH7u4&t=3
04:22
Are Those Your Lips or Feet? How Your Brain Rewires Itself After Amputation

378 views / 0 likes - added 5 years ago

From the top of your head to the bottom of your feet, your brain contains a map to your entire body. But what happens to that map if you lose a limb? Scientists Want to Transplant a Human Head, Here's Why That's a Bad Idea - https://youtu.be/CMHhF5N1FPY G
04:51 Popular
Cube Root Of A Non-perfect Cube | Pre-Algebra | Khan Academy

1,280 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/cube-root-tutorial/e/cube_roots?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacadem
10:02
Watch This Before You Eat Another M&M

289 views / 0 likes - added 3 years ago

M&M's are truly a delicious candy staple. But where did the idea for them come from, and how have they become so popular? We decided to dig deep to discover everything there is to know about these delicious chocolate treats.For many people, M&M's are a re
04:32
Cyborg Cockroaches Could Save Your Life | Cyborg Nation

649 views / 0 likes - added 8 years ago

Most consider them pesky critters, but Dr. Alper Bozkurt of North Carolina State University thinks that cockroaches have the potential to save human lives. By hacking their antennae and transforming them into remote-controlled creatures, he believes we ca
Robotic Spy Crab Plays Own Version Of Frogger On Christmas Island!

199 views / 0 likes - added 2 years ago

Spy Crab joins thousands of Christmas Island crabs as they march to the sea. But their journey is anything but easy as the crabs have to climb fences and dodge the oncoming traffic as they cross the roads to get to the sea. Will Spy Crab make it?Clip take
02:44
The DYING Barrier Reef

475 views / 1 likes - added 4 years ago

Climate Change is destroying the Great Barrier Reef. In the last 2 years the Great Barrier Reef has lost over half its coral. At the current rate at which sea temperatures are rising the Reef will go extinct in the next 20 to 30 years. I have witnessed th
04:33 Popular
Multiplying Negative And Positive Fractions | Fractions | Pre-Algebra | Khan Academy

884 views / 0 likes - added 8 years ago

See examples of multiplying and dividing fractions with negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplying-fractions-pre-alg/e/multiplying_fractions?utm_
01:11 Popular
Subtracting Decimals: Example 1 | Decimals | Pre-Algebra | Khan Academy

1,093 views / 1 likes - added 8 years ago

Subtracting decimals...up to the hundredths placement. Line up those decimals before you start. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/e/subtracting
02:28 Popular
Drawing Line Of Reflection | Transformations | Geometry | Khan Academy

1,052 views / 0 likes - added 8 years ago

Drawing 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
02:07 Popular
Percentage Of A Whole Number | Decimals | Pre-Algebra | Khan Academy

1,530 views / 0 likes - added 8 years ago

We hope you're beginning to see that there's more than one way to skin a cat. In other words, there are several different ways to solve problems involving percentages, decimals, and fractions. Watch as find the percentage of a whole number. Watch the next
06:19
How AI is Tracking Illegal Fishing From Space

318 views / 0 likes - added 3 years ago

This fugitive ship got away with stealing millions of fish for years. Inside how experts are using AI to fight illegal fishing on a massive scale. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Wild Crime! http://bit.ly/WILDCRIME Visit our
05:34 Popular
Multiplying Positive And Negative Numbers | Pre-Algebra | Khan Academy

1,383 views / 0 likes - added 8 years ago

Learn some rules of thumb for multiplying positive and negative numbers. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/absolute-value/mult_div_negatives/e/multiplying_and_dividing_negative_numbers?
20:48 Popular
Introduction To Scientific Notation | Pre-Algebra | Khan Academy

1,960 views / 0 likes - added 8 years ago

Introduction to scientific notation. An in-depth discussion about why and how scientific notation is used. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/scientific-notation/e/sc
06:29 Popular
Multiplying Decimals: Place Value And Reordering | Decimals | Pre-Algebra | Khan Academy

1,395 views / 0 likes - added 8 years ago

We want you to develop an intuition about how to work with decimals. Understanding how you can rewrite decimals by considering the place value will help you multiply! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/
03:38 Popular
Math Patterns Example 1 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

720 views / 0 likes - added 8 years ago

Part of our exploration of math is learning to identify patterns among numbers. Can you see the pattern in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_mediu
03:50
We May Have Just Found the Strongest Material in the Universe

412 views / 0 likes - added 5 years ago

Underneath the crust of spinning neutron stars, there’s a material that is not only strong, but looks like pasta? Nuclear pasta to be exact. Here’s what else scientists know. The James Webb Space Telescope Is Delayed (Again)! What Is Happening? - https://
04:04
[OFFICIAL VIDEO] Shallow - Pentatonix

536 views / 2 likes - added 5 years ago

GET "SHALLOW'' NOW! https://smarturl.it/PTXShall0W?iQid=ytiTunes - https://smarturl.it/PTXShall0W/itunes?iQid=ytApple Music - https://smarturl.it/PTXShall0W/applemusic?iQid=ytSpotify - https://smarturl.it/PTXShall0W/spotify?iQid=ytAmazon - https://smartur
09:43 Popular
Exponent Rules Part 1 | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,593 views / 0 likes - added 8 years ago

Introduction to exponent rules Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/exponent-properties/e/exponent_rules?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the
02:58
A Message to Bullies

598 views / 0 likes - added 6 years ago

When most of us think of bullying or abuse, we often think of it in a physical way. We teach children that sticks and stones may break our bones but words may never hurt us. But is that true? We all know it isn't. Most of the time, words hurt the most and
18:09
The Incredible Logistics Behind Corn Farming

176 views / 0 likes - added 2 years ago

Sign up for the stock footage provider that we use: http://storyblocks.com/wendoverWatch Extremities at http://youtube.com/extremitiesBuy a Wendover Productions t-shirt: https://standard.tv/collections/wendover-productions/products/wendover-productions-sh
05:52
Could Zapping Your Brain With Electricity Improve Your Memory?

357 views / 0 likes - added 5 years ago

Your memory starts to degrade with age, but what exactly happens in your brain if there was a little zap to it? Here's what scientists discovered. What Exactly is Lupus? - https://youtu.be/LMYY8LddNm8 Read More: Working memory https://www.sciencedirect.co
05:01
The Physics of SANTA

507 views / 0 likes - added 6 years ago

The Physics of Santa. With nearly 2 billion children in the world, how does Santa deliver all those presents on Christmas Eve? Hi! I'm Jade. I want to share the wonderful world of physics with you in an easy and fun way. ***SUBSCRIBE*** https://www.youtub
08:10
How Close Are We to Living in the Ocean?

450 views / 0 likes - added 4 years ago

Sea level rise will threaten 90% of major cities in the coming decades. But what if we just dove in to meet it? How close are we to building a city in the ocean?How Close Are We? Season 3 - https://www.youtube.com/watch?v=Ypm4QcOOqXQ&list=PL6uC-XGZC7X56r8
02:39 Popular
Comparing Decimals: Ordering From Least To Greatest | Decimals | Pre-Algebra | Khan Academy

1,949 views / 0 likes - added 8 years ago

This is a fun example where we reorder decimals from smallest to largest. You're looking for the place value that is the most significant, and then working backwards. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/
03:03 Popular
Introduction To Exponents | Pre-Algebra | Khan Academy

1,561 views / 0 likes - added 8 years ago

Taking an exponent is basically the act of repeated multiplication. You know how to multiply, right? If so, understanding exponents is completely within your grasp! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/ma
03:05 Popular
Why You Shouldn't Give Ginger To Monkeys (and other animal sayings)

844 views / 1 likes - added 5 years ago

Learn new skills from this video’s sponsor, Skillshare: http://skl.sh/minuteearth4 Humans from different cultures anthropomorphize different animals to represent the same human traits. Thanks also to our Patreon patrons https://www.patreon.com/MinuteEarth
06:32
Mao Zedong's infamous mango cult - Vivian Jiang

144 views / 0 likes - added 1 year ago

Dig into the era of Chinas Cultural Revolution, and how communist leader Mao Zedong used mangoes as a propaganda tool.--In August 1968, factory workers overheard news of a mandatory meeting. Whispered rumors described shipments of a gift from the countrys
03:48
How Voltage Fade Prevents Us From Creating the Perfect Battery

409 views / 0 likes - added 5 years ago

Scientist may have just figured out how to reverse the voltage fade in lithium-ion batteries, here’s how How Supercapacitors Could Make Batteries a Thing of the Past - https://youtu.be/GeSvErqdmIM Read More: What’s Causing the Voltage Fade in Lithium-rich
04:00 Popular
Finding Factors And Multiples | Factors And Multiples | Pre-Algebra | Khan Academy

1,646 views / 1 likes - added 8 years ago

To find the factors of a number means to find all the whole numbers that the number in question is divisible by. Can you help us find the factors in this example? Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
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‘The Swim’ Ended With 1,000 New Scientific Samples... Here’s What’s Next | The Swim

438 views / 0 likes - added 5 years ago

Broken sails don’t mean broken spirits for Ben Lecomte and his team. After six grueling months on the water, 'Seeker' has landed in Hawaii with a treasure trove of rare data and a commitment to a cleaner future. The Great Pacific Garbage Patch Is Not What
05:41 Popular
Math Patterns Example 2 | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

712 views / 0 likes - added 8 years ago

We continue to strengthen our skill in identifying patterns. This time we'll use a table to track the pattern. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/exercise/math-patterns?utm_source=YT&utm_medium=Desc&utm
04:49
The Black Hole Tipping Point

609 views / 0 likes - added 6 years ago

Thanks to https://brilliant.org/minutephysics/ for sponsoring this video! Check out their black hole course at https://brilliant.org/minutephysicsblackhole Support MinutePhysics on Patreon! http://www.patreon.com/minutephysics Link to Patreon Supporters:
08:13 Popular
Prime Numbers | Factors And Multiples | Pre-Algebra | Khan Academy

1,169 views / 0 likes - added 8 years ago

What does it mean to be a prime number? Let's progress though some whole numbers and ask ourselves if they meet the criteria. What is the criteria you ask? Watch. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
09:23 Popular
Converting Fractions To Decimals | Decimals | Pre-Algebra | Khan Academy

2,141 views / 2 likes - added 8 years ago

How to express a fraction as a decimal Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/e/converting_fractions_to_decimals?utm_source=YT&utm_medium=Desc&u
03:14 Popular
Robot Spy Hummingbird Films HALF A BILLION MONARCH BUTTERFLIES!

2,062 views / 9 likes - added 3 years ago

Up to half a billion monarch butterflies lie sleeping having overwintered in Mexico. As winter ends and spring arrives, the sun warms their wings and the forest comes to life as a cascade of butterflies take flight! Robot Spy Hummingbird is right there in
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09:45 Popular
Simplifying Radicals | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,588 views / 1 likes - added 8 years ago

Using exponent rules to simplify radicals or square roots Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/radical-radicals/e/simplifying_radicals?utm_source=YT&utm_medium=Desc&utm
14:13 Popular
Introduction To Ratios | Ratios, Proportions, Units, And Rates | Pre-Algebra | Khan Academy

1,960 views / 0 likes - added 8 years ago

What a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAl
05:37
We’re Closer to Unravelling the Mysterious Evolution of the T. Rex

395 views / 0 likes - added 5 years ago

In its prime, the Tyrannosaurs rex was the apex predator of the world over 65 million years ago, but how did it get so big, so fast? Here are the latest discoveries we have about this colossal beast. How Did Roboticists Get This Ancient Fossil To Walk? -
03:55
3D Body Scanning Is Here, and It Could Change How You See Yourself

580 views / 0 likes - added 5 years ago

New 3d scanners are enabling us to see deeper into the human body, but do you want to see your insides in 3D? What Can Happen to the Human Heart After Months of Swimming? | The Swim - https://youtu.be/ZLnxzZuhb9Y Thumbnail image courtesy of MARS Bioimagin
05:17 Popular
How Much Does It Cost To Run For President?

6,185 views / 0 likes - added 7 years ago

There’s a big difference between running for President and actually winning the election. So how much money will you need to have a decent shot at being Commander-in-Chief? Learn more at HowStuffWorks.com: http://people.howstuffworks.com/president.htm Sha
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05:08 Popular
Why is gravity different?

827 views / 0 likes - added 3 years ago

We probably think we know gravity pretty well. After all, we have more conscious experience with this fundamental force than with any of the others (electromagnetism and the weak and strong nuclear forces). But even though physicists have been studying gr
09:15 Popular
Mixed Numbers And Improper Fractions | Fractions | Pre-Algebra | Khan Academy

1,802 views / 2 likes - added 8 years ago

Converting mixed numbers to improper fractions and improper fractions to mixed numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/mixed-numbers-pre-alg/e/converting_mixed_numb
3:22:44
Were Swimming With Turtles (Again!)

347 views / 0 likes - added 4 years ago

Strap on your flippersthe TurtleCam is back! Were taking another deep dive with green sea turtles off the coast of the Bahamian island of Eleuthera. The camera was placed on the turtles back by biologist Nathan Robinson and his team at the Cape Eleuthera
04:17 Popular
Introduction To Area And Unit Squares | Measurement | Pre-Algebra | Khan Academy

1,602 views / 0 likes - added 8 years ago

Cover figures with square units to find their area. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/measurement/area-basics/e/measuring-area-with-unit-squares?utm_source=YT&utm_medium=Desc&utm_campa
09:19
The Hidden Physics Behind Your Breath

340 views / 0 likes - added 4 years ago

You breath all the time, whether you think about it or not. But how does that even work? And what is breathing for? Patricks got all the answers to your oxygen-deprived questions in this episode. And yeah, theres physics involved. Subscribe to Seeker! htt
03:50 Popular
Introduction To Multiplying Decimals | Decimals | Pre-Algebra | Khan Academy

1,176 views / 0 likes - added 8 years ago

Multiplying decimals can be confusing because there's always the question as to where the decimals goes in the answer. We're about to show you so you'll never have to question it again! Practice this lesson yourself on KhanAcademy.org right now: https://w
13:13
The History of Video

582 views / 0 likes - added 5 years ago

I always wanted to know why film looked better than video. Moving electronic images have as long a history but were invented for a different purpose. This video was sponsored by B&H Photo: https://www.bhphotovideo.com Huge thanks to: Richard Diehl, Video
04:20 Popular
Dividing A Whole Number By A Decimal | Decimals | Pre-Algebra | Khan Academy

1,749 views / 1 likes - added 8 years ago

When dividing a whole number by a decimal, you're going to need to change that decimal into a whole number. How? We'll show you. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/divi
05:30
Lead Poisoning Is Still a Huge Problem, But There Could Be a Quick Fix

410 views / 0 likes - added 4 years ago

As seen in the Flint Water Crisis, lead poisoning through corroded pipes can lead to cancer, reduced IQ, and even death. Researchers at UC Berkeley found a way to use electricity to solve this issue. But how does it work? The Newest Form of Water is Hot a
03:40 Popular
The Mystifying Structures Hidden Within Earth’s Mantle

989 views / 0 likes - added 5 years ago

Over four decades have passed since researchers discovered two continent-sized blobs wrapped around Earth's core, and they're still trying to figure out what they are. Here's what they know so far. There’s a Subterranean Biosphere Hiding in the Earth’s Cr
03:21 Popular
Is This New Super Carbon Better Than Graphene?

860 views / 0 likes - added 5 years ago

Scientists have been searching for schwarzites for decades, here’s how their discovery could change our world. How Supercapacitors Could Make Batteries a Thing of the Past - https://youtu.be/GeSvErqdmIM Read More: Generating carbon schwarzites via zeolite
05:15
Apollo’s First Manned Mission Was Live Streamed in Space | Apollo

514 views / 0 likes - added 5 years ago

NASA's first disaster was a matter of poor design. After a 20-month engineering overhaul and three unmanned missions, Apollo 7 finally took the program to space. And the astronauts gave Earthlings a real-time look of life in orbit. Check out the entire Ap
07:14 Popular
Negative Exponents | Exponents, Radicals, And Scientific Notation | Pre-Algebra | Khan Academy

1,626 views / 0 likes - added 8 years ago

How does a negative exponent affect our answer? Before you assume that the answer must be negative, think again! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/exponents-radicals/negative-exponents
01:16 Popular
New Discovery About The Moon's Age Could Rewrite History

732 views / 0 likes - added 7 years ago

New calculations suggest the moon could be a couple hundred million years older than we previously thought! Our Moon Might Be Made Up Of Many Smaller Moons - https://youtu.be/-k6mz9qle40 Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read
04:32
Fusion Energy Could Be a Reality in Less Than 5 Years

247 views / 0 likes - added 3 years ago

SPARC is aiming to be the first experimental device to achieve an energy-positive fusion reaction. New research suggests that this goal may soon be within reach. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/Element
04:59
Why scientists are so worried about this glacier

234 views / 1 likes - added 3 years ago

It's at the heart of Antarctica and on the verge of collapse.Become a Video Lab member! http://bit.ly/video-labMan-made climate change is warming the planet's atmosphere and oceans, and the effects are being felt the most at the poles. In Antarctica, home
05:42 Popular
Understanding Division Of Fractions | Fractions | Pre-Algebra | Khan Academy

1,220 views / 0 likes - added 8 years ago

Using a number line, we'll explain the rule of "invert and multiply" when dividing two fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/div-fractions-fractions-pre-alg/e/
03:47
Quantum Diamond Sensors Could Give Us a New Look Inside Our Bodies

433 views / 0 likes - added 5 years ago

Quantum sensors may soon be able to detect subatomic interactions inside the cells in your body, here’s how. How Quantum Computing Will Change The World! - https://youtu.be/3BKIJCTLy-s Read More: Update: Quantum physics gets attention—and brighter funding
03:50 Popular
What To Eat To End A Fast | Fasting & Cleanses

708 views / 0 likes - added 8 years ago

Watch more How to Detox videos: http://www.howcast.com/videos/516349-What-to-Eat-to-End-a-Fast-Fasting-and-Cleanses Find out what you should eat to end a fast in this Howcast video featuring nutritionist Natalia Rose. Hi, I'm Natalia Rose and today we're
02:16
Do You Have ADHD or Are You Just Tired?

494 views / 0 likes - added 6 years ago

A new study suggests that ADHD might actually be a sleep disorder-- a suggestion that, if true, could revolutionize the way we treat it. Why Does White Noise Make You Fall Asleep? - https://youtu.be/8ZGx0W9i5gE Read More: Is ADHD really a sleep problem? h
12:33
Cryptography: Crash Course Computer Science #33

652 views / 0 likes - added 6 years ago

Today we’re going to talk about how to keep information secret, and this isn’t a new goal. From as early as Julius Caesar’s Caesar cipher to Mary, Queen of Scots, encrypted messages to kill Queen Elizabeth in 1587, theres has long been a need to encrypt a
05:07
Life on Other Planets May Need Radiation to Thrive, Here's Why

292 views / 0 likes - added 3 years ago

New research reveals that massive amounts of radioactive material might actually be essential for life outside our solar system. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop at http:
09:29 Popular
Dividing Decimals With Hundredths Example 3 | Decimals | Pre-Algebra | Khan Academy

1,083 views / 0 likes - added 8 years ago

The old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dividing-d
26:55
ChatGPT: 30 Year History | How AI Learned to Talk

17 views / 0 likes - added 1 month ago

This video explores the journey of AI language models, from their modest beginnings through the development of OpenAI's GPT models. Our journey takes us through the key moments in generative neural network research involved in next word prediction. We del
04:23
Samurai Wasps Say 'Smell Ya Later, Stink Bugs' | Deep Look

659 views / 0 likes - added 5 years ago

Support Deep Look on Patreon! https://www.patreon.com/deeplook Yep, brown marmorated stink bugs are stinky, but that’s not the worst thing about them. They're imported agricultural pests eating their way across North America. But a native enemy from Asia
03:53
How Supercapacitors Could Make Batteries a Thing of the Past

397 views / 0 likes - added 5 years ago

An accidental breakthrough in supercapacitor technology could finally make them more efficient than batteries! Here’s how it could lead to a brighter energy future. These Squishy Batteries Are Made Out of Water, Here’s How They Work - https://youtu.be/3BZ
05:02 Popular
Positive And Negative Slope | Algebra I | Khan Academy

1,549 views / 0 likes - added 8 years ago

Positive 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
12:29
Combinatorics and Higher Dimensions - Numberphile

439 views / 0 likes - added 6 years ago

Featuring Federico Ardila from San Francisco State University - filmed at MSRI. More links & stuff in full description below ↓↓↓ Federico previously on Numberphile: https://www.youtu.be/OfEv5ZdSrhY Federico's webpage: http://math.sfsu.edu/federico/ Antarc
14:28
1984 by George Orwell, Part 1: Crash Course Literature 401

615 views / 1 likes - added 6 years ago

In which John Green returns for a dystopian new season of Crash Course Literature! We're starting with George Orwell's classic look at the totalitarian state that could be in post-war England. Winston Smith is under the eye of Big Brother, and making us t
05:55
A 5G World Is on the Horizon, But How Will It Work?

348 views / 0 likes - added 5 years ago

The rumors of a 5G wireless network, with the fastest connectivity we've ever experienced, is finally coming this year. Can We Power the World With a Single Energy Grid? - https://youtu.be/aE6EQyOFNkM Read More: Qualcomm already has a new 5G chip that pro
04:25 Popular
Multiplying Challenging Decimals | Decimals | Pre-Algebra | Khan Academy

965 views / 0 likes - added 8 years ago

Sometimes multiplying really small decimals (with all those zeros!) can be a little intimidating. Watch as we show you a handy trick to simplify these problems and solve them. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanaca
04:30 Popular
How Much Tea Would it Take to Turn the Boston Harbor into Tea?

898 views / 1 likes - added 5 years ago

We wanted to know if enough tea was dumped in Boston harbor during the Boston tea party to turn the entire thing to tea. So we did some math. Subscribe! http://bit.ly/ACSReactions Facebook! http://facebook.com/ACSReactions Twitter! http://twitter.com/ACSR
02:48 Popular
Robot Spy Otter & Spy Bald Eagle Discover How Sea Otters Cope With Mega-waves From Melting Glaciers

857 views / 0 likes - added 4 years ago

#SeaOtter #SpyInTheWild #DavidTennantRobot Spy Otter & Spy Bald Eagle Discover How Sea Otters Cope With Mega-waves From Melting Glaciers.As spring arrives in Alaska, chunks of ice start to fall from the glaciers causing huge waves but Spy Otter & the Sea
03:28 Popular
Inequality Word Problems | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,664 views / 0 likes - added 8 years ago

We're writing inequalities by using information from the word problems. Woohoo! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writing-numeric
06:14 Popular
How To Plot Inequalities On A Number Line | Pre-Algebra | Khan Academy

1,524 views / 0 likes - added 8 years ago

Learn how to graph an inequality on a number line to indicate which values make it true. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/greater-than-less-than/e/writin
10:31
How Close Are We to Launching the James Webb Space Telescope?

509 views / 1 likes - added 4 years ago

The James Webb Space Telescope will allow us to see further into space than ever before, and its discoveries are expected to revolutionize astronomy. So, how close are we to finally launching it? How Close Are We? Season 3 - https://www.youtube.com/watch?
03:33 Popular
Finding A Percentage | Decimals | Pre-Algebra | Khan Academy

1,258 views / 0 likes - added 8 years ago

Once again, fractions are our friends as we use them to find a percentage. You'll also see a couple of different ways to arrive at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimal
06:56 Popular
Exponents And Powers Of Zero Patterns | Pre-Algebra | Khan Academy

1,118 views / 0 likes - added 8 years ago

Now that we understand how to interpret an exponent and how the patterns in zeros are related to the exponent, we can solve more complicated problems! Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra
08:34
Bioluminescence Explained | Lights of the Deep Sea

378 views / 0 likes - added 3 years ago

Bioluminescence in the deep sea is a natural phenomenon present in many deep sea creatures. Bioluminescent twinkling, flashing, pulsating lights are the result of a chemical reaction that produces light energy within the body of an organism. It is a commo
02:42 Popular
NASA Solved The Mystery Of The Moon's Strange Glow!

770 views / 0 likes - added 7 years ago

A recent NASA study on lunar dust may have found the reason behind the moon's strange glow, and it's not what scientists expected. The Air On Mars Has A Mysterious Glow. Here's Why - https://youtu.be/wHiV2bOQVUw Sign Up For The Seeker Newsletter Here - ht
00:52 Popular
Reading Bar Charts: Basic Example | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,376 views / 0 likes - added 8 years ago

Let's start with this bar chart that brings back the days of Harry Potter! Putting our toes in the water on this one... Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/
05:05 Popular
Solving Ratio Problems With Tables Example 1 | Pre-Algebra | Khan Academy

887 views / 0 likes - added 8 years ago

We're displaying ratios in a table format here, and then asking: given a ratio, solve for equivalent ratios. Here are a few examples to practice on. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/r
03:29 Popular
Everything You Need To Know About Kidney Stones

1,115 views / 0 likes - added 7 years ago

Researchers have found that riding roller coasters may help pass kidney stones! But what are kidney stones and what causes them? Is It Dangerous To Hold In Your Pee? - https://youtu.be/1PmZdIPXqCw Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO
03:24
Have We Really Engineered a Plane That Prevents Jet Lag?

448 views / 1 likes - added 5 years ago

If you’ve ever been on a long flight across multiple time zones, you have probably experienced the unfortunate symptoms of jet lag. How are aerospace engineers trying to improve their aircraft technologies and designs to minimize the uncomfortable symptom
04:08
[OFFICIAL AUDIO] Can You Feel the Love Tonight? - Pentatonix

504 views / 1 likes - added 4 years ago

GET "CAN YOU FEEL THE LOVE TONIGHT?'' NOW! https://smarturl.it/CYFTLTTICKETS TO PENTATONIX: THE WORLD TOUR' ARE ON SALE NOWhttp://www.ptxofficial.com/tour 6/1/2019 - Amway Center - Orlando, FL6/2/2019 - James Brown Arena - Augusta, GA6/4/2019 - PPL Center
04:31 Popular
Number Patterns: Interpreting Relationships | Pre-Algebra | Khan Academy

1,541 views / 0 likes - added 8 years ago

Examining the points on a number line and interpreting the patterns to discover the relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topic/number-patterns/e/vis
02:58 Popular
Monkeys For A Party | Place Value (tens And Hundreds) | Early Math | Khan Academy

706 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-teens/e/teen-numbers-1?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: https:
03:08 Popular
Multiplying Unit Fractions And Whole Numbers | Fractions | Pre-Algebra | Khan Academy

1,667 views / 1 likes - added 8 years ago

Don't let multiplying whole numbers and fractions get you down. We got this. This explanation will help you become a pro. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/multiplyin
05:08
What Happens When an Island Completely Disappears?

550 views / 1 likes - added 5 years ago

A giant hurricane swept an island away in just one night, but is this just a succession of tons of island disappearances all over the globe? Here’s what we know. Why a Half Degree Rise in Global Temperature Would Be Catastrophic - https://youtu.be/teZk3NL
04:16 Popular
Least Common Multiple Exercise | Factors And Multiples | Pre-Algebra | Khan Academy

1,142 views / 0 likes - added 8 years ago

We're practicing finding the least common multiple in these example exercises. We'll teach you the prime factorization approach which is a pretty nifty way to find the lcm (least common multiple). Practice this lesson yourself on KhanAcademy.org right now
07:08 Popular
Early Train Word Problem | Linear Equations | Algebra I | Khan Academy

886 views / 0 likes - added 8 years ago

Fun word problem that is almost a brain teaser. Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/More-equation-practice/v/patterns-in-sequences-1?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI
04:09
We Just Found a MAJOR Clue About How Life Started in the Universe Thanks to Buckyballs

399 views / 0 likes - added 4 years ago

NASA's Hubble Space Telescope discovered these electrically charged molecules shaped like soccer balls. These "buckyballs" could shed insight on the creation of stars and planets. Up above most of the atmosphere, the Hubble Space Telescope had an unobstru
01:34 Popular
Solving Ratio Problems With Graph | Pre-Algebra | Khan Academy

1,941 views / 0 likes - added 8 years ago

In this example we'll plot points on the x and y axis to reflect the given ratios. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/solving-ratio-problems-wi
08:21 Popular
Two-variable Linear Equations And Their Graphs | Algebra I | Khan Academy

2,052 views / 0 likes - added 8 years ago

Introduction to 2-variable linear equations and their graphs Watch the next lesson: https://www.khanacademy.org/math/algebra/two-var-linear-equations-and-intro-to-functions/solutions-to-two-var-linear-equations/v/checking-ordered-pair-solutions-to-equatio
03:47 Popular
Why Do Scientists Keep Finding New Organs?

859 views / 0 likes - added 5 years ago

This long ignored connective tissue now serves a more important role and may act as a shock absorber, keeps our organs in place, and even plays a major role in the spread of cancer. But is it an organ? How Scientists Found a New Neuron Hiding in Our Brain
04:58 Popular
Comparing Fractions Of Different Wholes | Fractions | 3th Grade | Khan Academy

1,473 views / 0 likes - added 8 years ago

Comparing fractions of different wholes Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-third-grade-math/cc-3rd-fractions-topic/cc-3rd-different-wholes/e/naming-the-whole?utm_source=YT&utm_medium=Desc&utm_ca
02:36 Popular
Converting Decimals To Percents | Decimals | Pre-Algebra | Khan Academy

1,527 views / 0 likes - added 8 years ago

Need to convert a decimal to a percent? Ok, we'll just use our fraction friends to get us there. Watch and be amazed. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/percent-intro-p
02:36 Popular
Number Patterns: Seeing Relationships | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,041 views / 0 likes - added 8 years ago

Laying the foundation for algebraic thinking by learning to recognize the relationships between patterns and graphing out those relationships. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applyin
02:38 Popular
Adding 5 + 3 + 6 | Addition And Subtraction Within 20 | Early Math | Khan Academy

717 views / 0 likes - added 8 years ago

Learn how to add 5 + 3 + 6. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/adding-three-numbers?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath W
03:06
Will Robot Spy Gorilla Be Welcomed By The Great Silverback?

360 views / 0 likes - added 4 years ago

"Spy in the Wild 2" While a young mountain gorilla just wants to play with our Spy Gorilla will the Silverback be so welcoming? Spy Gorilla offers a hand Of friendship! ***DON'T FORGET TO SUBSCRIBE OUR CHANNEL*** For those in the UK you can watch the 1st
06:20 Popular
Greatest Common Factor Explained | Factors And Multiples | Pre-Algebra | Khan Academy

1,181 views / 0 likes - added 8 years ago

Here's a nice explanation of least common factor (or least common divisor) along with a few practice example exercises. Let's roll. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/factors-multiples/
05:06
The New Mars Rover Is The Most Advanced Yet, Here's Why

322 views / 1 likes - added 3 years ago

We've set our sights on Mars once again with NASAs Perseverance rover due to launch in the summer of 2020. Subscribe to Seeker! http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsPlaylist Visit our shop at http://shop.seeker.com Sinc
14:18 New
How Hardest Geezer Ran the Entire Length of Africa | Super Power

10 views / 0 likes - added 6 days ago

Head to https://my.huel.com/gbsRuss to fuel your own superhero story.Russ Cook AKA @hardestgeezer has made headline news across the globe. Why? Because hes just completed the equivalent of 385 marathons in 352 days, running across the entire length of Afr
02:37
VIETNAM, Waterfalls: Amazing Planet (4K) 2020

312 views / 0 likes - added 3 years ago

Ban Gioc Falls, Vietnam by Filip Kulisev Filip Kulisev strives to find and photograph the most wonderful and unique sites of our planet for the benefit of all nature lovers in Slovakia and around the world. Through his photographs he has raised awareness
03:46
This Chemical Does Nothing, But It's Still Bad For You

99 views / 0 likes - added 8 months ago

Check out the MinuteFood video on Teflon here: https://youtu.be/R1hbV3EzOD4PFAS - also known as the forever chemicals we use in all sorts of household products - are able to cause all sorts of health problems without ever really reacting with anythingLEAR
09:00
Why 99% of ocean plastic pollution is "missing"

336 views / 0 likes - added 3 years ago

The plastic we dump into the ocean might be hiding in plain sight. Subscribe to our channel! http://goo.gl/0bsAjOVox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out htt
01:37 Popular
Translation Example | Transformations | Geometry | Khan Academy

1,655 views / 0 likes - added 8 years ago

Translation 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
14:34
Florence and the Renaissance: Crash Course European History #2

565 views / 0 likes - added 4 years ago

The Renaissance was a cultural revitalization that spread across Europe, and had repercussions across the globe, but one smallish city-state in Italy was in many ways the epicenter of the thing. Florence, or as Italians might say, Firenze, was the home to
01:55 Popular
Drawing Image Of Translation | Transformations | Geometry | Khan Academy

1,192 views / 0 likes - added 8 years ago

Practice 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
02:27 Popular
Inequality Word Problem: One Variable | Applying Mathematical Reasoning | Pre-Algebra | Khan Academy

1,043 views / 0 likes - added 8 years ago

This time we're creating a variable to represent a number, and then writing an inequality. We're building on our knowledge. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-to
12:01
What Vitamins Do You Actually Need to Survive? (Part 2 of 3)

400 views / 1 likes - added 5 years ago

Ever walk down a vitamin/supplement aisle and get lost? Same. Here are the key vitamins you need to survive. Part 1 of 3: https://www.youtube.com/watch?v=1II147SIBlY Part 3: Coming soon! Read More: Listing Of Vitamins https://www.health.harvard.edu/stayin
04:19 Popular
Place Value Example With 42 | Place Value (tens And Hundreds) | Early Math | Khan Academy

789 views / 0 likes - added 8 years ago

Learn to see 42 as 4 tens and 2 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-tens/e/groups-of-tens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
01:25 Popular
Using Rotation Widget | Transformations | Geometry | Khan Academy

1,495 views / 0 likes - added 8 years ago

Using 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
04:24 Popular
Example Of Subtracting Fractions With Unlike Denominators | Fractions | Pre-Algebra | Khan Academy

1,658 views / 0 likes - added 8 years ago

If you conquered adding fractions with different denominators, then subtracting fractions will be a snap. Don't worry...we'll take it slow and explain every step. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math
02:35 Popular
Dividing Whole Numbers And Fractions: Studying | Fractions | Pre-Algebra | Khan Academy

2,108 views / 0 likes - added 8 years ago

Solve a word problem by dividing a fraction by a whole number. The example used in this video is 1/5 ÷ 4. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/fractions-pre-alg/dividing-fractions-pre-alg
03:43
Thats Not a Rattlesnake Its an Owl!

288 views / 0 likes - added 3 years ago

Go to http://Brilliant.org/SciShow to try their Search Engines course. The first 200 subscribers get 20% off an annual Premium subscription.When living underground leaves them vulnerable to attack, burrowing owls have a trick up their sleevetheyve develop
15:33 Popular
Democracy, Authoritarian Capitalism, and China: Crash Course World History 230

898 views / 1 likes - added 9 years ago

In which John Green teaches you about the end of World History, and the end of the world as we know it, kind of. For the last hundred years or so, it seemed that one important ingredient for running an economically successful country was a western-style d
05:07
There’s a Subterranean Biosphere Hiding in the Earth’s Crust and It’s MASSIVE

471 views / 0 likes - added 5 years ago

This mysterious new ecosystem is being called the ‘subterranean galapagos’ and it’s almost twice the size of earth’s oceans. We’ve never seen anything like it. Thumbnail image courtesy of Gaëtan Borgonie, ELI, Belgium. A New Genetic Alphabet Is Creating T
02:55 Popular
Place Value Example With 25 | Place Value (tens And Hundreds) | Early Math | Khan Academy

715 views / 0 likes - added 8 years ago

Learn to see 25 as 2 tens and 5 ones. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/cc-early-math-tens/e/groups-of-tens?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
04:31 Popular
Counting American Coins | Measurement And Data | Early Math | Khan Academy

738 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
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What is Radioactivity and Is It Always Harmful: Explained in Really Simple Words

141 views / 0 likes - added 1 year ago

Radioactivity is the property through which a heavier, unstable nucleus assumes a more stable state by emitting radiation. The process through which a nucleus turns into a stable one is called radioactive decay. But is radioactivity or radioactive radiati
04:17
This Lab-Grown Brain Made A Muscle TWITCH, Here’s How

381 views / 0 likes - added 5 years ago

Growing brains can be a tricky process, but growing ones that can make muscles move? That's an incredible feat. Here's how scientists did it. How Close Are We to Farming Human Body Parts? - https://youtu.be/oRHxX9OW9ow Read More: Cerebral organoids at the
01:58 Popular
Counting In Order | Counting | Early Math | Khan Academy

920 views / 0 likes - added 8 years ago

Learn how to count without making mistakes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/e/counting-objects?utm_source=YT&utm_medium=Desc&utm_ca
19:05
The Simple Genius of the Interstate Highway System

211 views / 0 likes - added 2 years ago

Sign up for a CuriosityStream subscription and also get a free Nebula subscription (the streaming platform built by creators) here: http://CuriosityStream.com/wendoverWatch a Nebula-exclusive companion video to this here: https://nebula.app/videos/wendove
Irrigate like its 2000 BC with these easy DIY terracotta watering pots called ollas

172 views / 0 likes - added 2 years ago

Make an Olla (pronounced oi-ya)Ollas have been used for thousands of years in agriculture and gardening practices and are traditionally unglazed terracotta jugs filled with water and buried into the soil, with their necks protruding slightly. Once the por
03:22
We Interviewed Pepper — The Humanoid Robot

682 views / 0 likes - added 5 years ago

Pepper is a humanoid robot companion designed be sort of a kiosk at businesses like shopping malls, hospitals, and doctors' offices. Pepper is also able to track eye contact and express emotion. We spent a little time with Pepper and got its thoughts on h
07:51 Popular
Volume: How To Measure It | Measurement | Pre-Algebra | Khan Academy

786 views / 0 likes - added 8 years ago

Volume is a measurement in the 3rd dimension. This means that it not only has width and height, but it has depth as well. Let's watch this video in which we get a great explanation of how we measure volume. Practice this lesson yourself on KhanAcademy.org
02:04 Popular
Compose Shapes | Geometry | Early Math | Khan Academy

781 views / 0 likes - added 8 years ago

Learn how to combine shapes to make other shapes. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-geometry-topic/cc-early-math-composing-shapes/e/compose-shapes?utm_source=YT&utm_medium
08:34 Popular
LCM And GCF Word Problems | Factors And Multiples | Pre-Algebra | Khan Academy

1,857 views / 1 likes - added 8 years ago

Here we have a couple of word problems--one searching for the least common multiple and the other for the greatest common factor. Just read them with us slowly and follow along. You'll get it. Practice this lesson yourself on KhanAcademy.org right now: ht
01:44 Popular
Interpreting Two-way Tables | Data And Modeling | 8th Grade | Khan Academy

1,728 views / 0 likes - added 8 years ago

Learn how to read two-way tables. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-counting-topic/cc-early-math-counting/v/counting-with-small-numbers?utm_source=YT&utm_medium=Desc&utm_c
05:13
Real Star Trek Like Transporter. Why This 3D Light Printer Is A HUGE Game Changer

497 views / 0 likes - added 5 years ago

Computed Axial Lithography is the first printer of it's kind. It can shape objects, all-at-once, using specialized synthetic resin and rays of light. We Can Now 3D Print in Suspended Gravity (And It’s Mesmerizing!) - https://youtu.be/FgCedvTbKso Read More
05:47
LIGO's Gravitational Wave Discovery Is Still In Question, But Why?

421 views / 0 likes - added 5 years ago

LIGO’s discovery of gravitational waves rocked the world of physics. But now, some scientists are questioning their methods. Here’s what you need to know. WTF Is Gravity? Scientists Don’t Really Know Either - https://www.youtube.com/watch?v=g9_PdtL627k&t=
03:53
Adding 7 + 6 | Addition And Subtraction Within 20 | Early Math | Khan Academy

660 views / 0 likes - added 8 years ago

Learn how to add 7 + 6 using the number line. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=Ear
03:19 Popular
Adding 8 + 7 | Addition And Subtraction Within 20 | Early Math | Khan Academy

713 views / 0 likes - added 8 years ago

Learn how to add 8 + 7 by making a group of ten. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-20/cc-early-math-add-20/e/addition_2?utm_source=YT&utm_medium=Desc&utm_campaign=
03:45 Popular
Visualizing Equivalent Fractions | Fractions | Pre-Algebra | Khan Academy

1,097 views / 0 likes - added 8 years ago

To understand equivalent fractions it helps to "see" the fractions using something like a grid with shaded and unshaded sections representing the fraction. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-al
02:36 Popular
Counting By Tens Examples | Addition And Subtraction Within 100 | Early Math | Khan Academy

841 views / 0 likes - added 8 years ago

Learn to count by tens. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/skip-counting-by-10s?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMa
04:38
[OFFICIAL VIDEO] Waving Through A Window - Pentatonix

531 views / 0 likes - added 5 years ago

GET 'WAVING THROUGH A WINDOW' NOW! https://smarturl.it/WTAW?iQid=ytiTunes - https://smarturl.it/WTAW/itunes?iQid=ytApple Music - https://smarturl.it/WTAW/applemusic?iQid=ytSpotify - https://smarturl.it/WTAW/spotify?iQid=ytAmazon - https://smarturl.it/WTAW
03:40 Popular
Multi-step Word Problem With Decimals And Subtraction | Pre-Algebra | Khan Academy

1,631 views / 0 likes - added 8 years ago

First visualize this word problem then use subtraction and multiplication of decimals and fractions to get at the answer. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/applying-math-reasoning-topi
04:25
How SpaceXs Starship Will Become the Most Powerful Rocket in the World | Countdown to Launch

439 views / 0 likes - added 4 years ago

When SpaceX was founded, its goal was to establish a human colony on Mars. And Starship might be the way to get there. Subscribe to Seeker!http://bit.ly/subscribeseeker Watch more Countdown to Launch: http://bit.ly/CTLplaylist In September 2019, Elon Musk
08:13 Popular
Points After Rotation | Transformations | Geometry | Khan Academy

1,125 views / 1 likes - added 8 years ago

Points 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
05:59 Popular
Introduction To Place Value | Place Value (tens And Hundreds) | Early Math | Khan Academy

1,012 views / 1 likes - added 8 years ago

Learn why we use a "ones place" and a "tens place" when writing numbers. This video uses the number 37 as an example. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-place-value-topic/c
02:46 Popular
Defining Rotation Example | Transformations | Geometry | Khan Academy

1,700 views / 0 likes - added 8 years ago

Defining 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
03:36
Addition Using Groups Of 10 Intro | Addition And Subtraction Within 100 | Early Math | Khan Academy

694 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-making-groups-of-ten/e/making-100?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: h
02:49 Popular
Skip Counting By 100 Example | Addition And Subtraction Within 100 | Early Math | Khan Academy

807 views / 0 likes - added 8 years ago

Learn to count by hundreds. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-skip-counting/e/skip-counting-by-100s?utm_source=YT&utm_medium=Desc&utm_campaign=Ea
06:34 Popular
Does My Dog Know What I'm Thinking?

866 views / 0 likes - added 9 years ago

Head to BrainCraft for more doggy science! http://youtu.be/OBy3idLwwYM Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesm
02:12 Popular
Fewer Word Problems | Addition And Subtraction Within 100 | Early Math | Khan Academy

863 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-100/cc-early-math-more-fewer-100/e/addition-and-subtraction-word-problems-within-100--level-3?utm_source=YT&utm_medium=Desc&utm_c
03:18 Popular
Counting Dollars | Measurement And Data | Early Math | Khan Academy

717 views / 0 likes - added 8 years ago

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-measure-data-topic/cc-early-math-money/v/counting-dollars?utm_source=YT&utm_medium=Desc&utm_campaign=EarlyMath Watch the next lesson: htt
02:28
Scientists Just Used a Tractor Beam to Levitate the Largest Object Yet

453 views / 0 likes - added 6 years ago

The world’s most powerful tractor beam just lifted a 2 centimeter ball, but could it make levitating humans a reality? One Shot Could Provide All the Vaccines You'll Ever Need - https://youtu.be/qQ1VKYX4Vl0 Thumbnail image courtesy of University of Bristo
10:32 Popular
Rotating About Arbitrary Point | Transformations | Geometry | Khan Academy

869 views / 0 likes - added 8 years ago

Rotating 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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