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• 07:36

This is How The First Hard Disk Drive Looked Like

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Inventions in the electronic world have changed the course of our lives. Right from the laptops to the mobile phones we use, These weren’t so simple and easy devices back in the days when they were first invented and brought in the market. From their bulk

• 04:21

How To Write One-step Equations For Word Problems | 6th Grade | Khan Academy

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Learn how to write basic equations to model real-world situations. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-equations-and-inequalities/cc-6th-super-yoga/e/equations-in-one-vari

• 06:57

When Is Christmas? Mentally Convert Date To Day Of The Week

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January 1, 2016 is a Friday. When will Christmas be in 2016? What about Christmas in 2055? You can do this in your head! Blog post (text explanation): http://wp.me/p6aMk-4qQ Doomsday Rule (previous video): https://www.youtube.com/watch?v=UsStBxY9STw Calcu

• 05:15

225 views / 0 likes - added

Explore how the value of an algebraic expression changes as the value of its variable changes. The algebraic expressions used in this video are 100-x, 5/x + 5, and (3y)/(2y). Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacad

• 07:51

How To Solve One-step Multiplication And Division Equations With Fractions And Decimals

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"Learn how to solve equations in one step by multiplying or dividing a number from both sides. These problems involve decimals and fractions. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/

• 02:23

Immigration in America Isn’t What the Politicians Tell You

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Politicians make a lot of wild claims about undocumented immigrants in the United States. Our advice? Take a deep breath and have a look at what the numbers tell you. Still haven’t subscribed to WIRED on YouTube? ►► http://wrd.cm/15fP7B7 CONNECT WITH WIRE

• 04:05

Does This Reaction Break the Second Law of Thermodynamics?

247 views / 1 likes - added

In the 1950s, Russian chemist Boris Belousov reported a bizarre reaction. A reaction that oscillates between two states. Could it be violating the second law of thermodynamics? Andrea Sella investigates. Day 13 of our thermodynamics advent calendar: http:

• 23:08

A Rare Interview With The Mathematician Who Cracked Wall Street | Jim Simons | TED Talks

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Jim Simons was a mathematician and cryptographer who realized: the complex math he used to break codes could help explain patterns in the world of finance. Billions later, he’s working to support the next generation of math teachers and scholars. TED’s Ch

• 05:09

Can You Solve The Snake Eyes Probability Riddle?

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You close your eyes and roll a pair of dice. The casino dealer announces that at least one of the rolls is showing a 1.What is the probability that both dice are showing a 1? Watch the video for the solution. (Snake eyes is a term for rolling a pair of 1s

• 05:19

Riddles: 5 "easy"... & one IMPOSSIBLE! (with answers)

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★★★★ Riddles and more... Subscribe to Daily Broccoli! ★★★★ This is a fun video with 5 supposedly "easy" riddles with answers, and one impossible question. I love these riddles, because they are clever and in fact not all that difficult. But still I wasn't

• 04:42

How To Write Algebraic Expressions From Word Problems | 6th Grade | Khan Academy

457 views / 0 likes - added

Learn how to write expressions with variables to describe situations described in word problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-expressions-and-variables/cc-6th-alg-e

• 02:59

How Do Helicopters Fly Without Wings?

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Engineering tons of metal to fly straight up is no easy feat. Here’s how helicopter blades make vertical flight a reality. Why Flying Makes You Feel Sick - https://youtu.be/ayVf8ahvvFM Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Read Mo

• 07:49

Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

415 views / 0 likes - added

This problem has been shared millions of times on Twitter/Facebook with the claim "99% fail" to solve it and that only a genius could find the correct answer. If 9 = 72, 8 = 56, 7 = 42, 6 = 30, 5 = 20, then 3 = ? In this video I explain what many people b

• 05:39

Can You Solve A 5th Grade Problem From China? Find The Area Of ABCD

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Thanks to Eric from Miami for suggesting this problem and sending a solution! The diagram shows a quadrilateral ABCD with the values for some angles and the length of AB. Can you figure out the area of ABCD? Subscribe: https://www.youtube.com/user/MindYou

• 07:42

The Useless Number - Numberphile

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One of the first people to stumble over imaginary numbers (namely the square root of -15) thought it was "subtle" and "useless". Featuring Barry Mazur. Extra footage from this interview: http://youtu.be/i4GCd2xOCDg Barry's book on this topic: http://bit.l

• 05:43

How to order 43 Chicken McNuggets - Numberphile

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We're exploring the world of Chicken Nuggets and Frobenius numbers. 43 has long been a special number in the world of McNugget mathematics, but 11 is also important! More links & stuff in full description below ↓↓↓ This video features D

• 03:45

Spider-Man Was Almost TOTALLY DIFFERENT! | WHAT THEY GOT RIGHT

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Spider-Man: Homecoming is unlike any other Spider-Man movie we've seen! But the story of the movie was almost totally different! On WHAT THEY GOT RIGHT, Ruby Jay tells you about all the different plotlines Marvel considered for Homecoming before swinging

• 12:01

The Civil War, Part I: Crash Course US History #20

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In which John Green ACTUALLY teaches about the Civil War. In part one of our two part look at the US Civil War, John looks into the causes of the war, and the motivations of the individuals who went to war. The overarching causes and the individual motiva

• 03:03

The Tale Of Goldy's Tail | A Cool School & BIC Story By Lily Medich

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On today’s Cool School episode, see Lily Medich’s handwritten story come to life! There once was a girl named Fern. Fern was a fish fanatic who won an odd, grey looking fish at the fair that she named Goldy. Goldy grew big teeth and wasn't able to swim, u

• 06:44

GIANT LEGO Brickman Awesome Sydney Family Fun Children Activities Kids video Evren ToysReview

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GIANT LEGO Brickman Awesome Sydney Family Fun Children Activities Kid Video Evren ToysReview. Evren and her family had a great family fun time in Ryan McNaught's LEGO Brickman's AWESOME exhibition held in Sydney International Convention Centre in Darling

• 15:15

Moving Faster Than The Speed Of Light? Special Relativity Velocity Addition Formula

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If train A is moving towards train B, and each train moves at 75% the speed of light (relative to the ground), will an observer on train A think that train B is moving at 150% the speed of light? But nothing moves faster than the speed of light, so what i

• 29:53

Pipe Organ (an instrument the size of a building)

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The biggest of instruments. Takes a half hour long video just to explore MOST of it. Help videos be made and see them early + extra stuff on Patreon: http://www.patreon.com/RobScallon John Sherer's full performances on the 2nd channel: Johann Sebastian Ba

• 10:43

Can You Carbonate Soda With Pop Rocks? Bad Idea...

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In this video I see if it is possible to carbonate soda by adding 22 bags of pop rocks in it. First, in order to get my soda to have no carbonation and be completely flat, I put it in the vacuum chamber. Then I add the pop rocks to pressurize the soda wit

• 11:55

Top 10 Most Incredible Time Capsule Findings

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Whilst time machines don't exist (yet), time capsules are the closest thing we have in reality to them, so lets find out the most incredible time capsules! Subscribe for more! ► https://goo.gl/pgcoq1 ◄ Stay updated ► https://goo.gl/JyGcTt https://goo.gl/5

• 12:11

Communists, Nationalists, and China's Revolutions: Crash Course World History #37

388 views / 1 likes - added

Don't forget! Crash Course posters and t-shirts at http://www.dftba.com/crashcourse In which John Green teaches you about China's Revolutions. While the rest of the world was off having a couple of World Wars, China was busily uprooting the dynastic syste

• 03:22

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Eastern hellbenders live throughout the Appalachian region in the United States. Their ancestors have been on earth for around 160 million years, but in the last several decades their numbers have dropped dangerously in several states, primarily due to ha

• 04:53

Can You Solve The Friendship Riddle?

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In a group of 6 people, you might find that some people are friends on Facebook, or you might find out that no one is friends on Facebook. Show that there is always a group of 3 people in which either: (a) all 3 people are mutual friends or (b) the 3 peop

• 06:49

Useful Diamonds - Periodic Table Of Videos

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• 06:01 Popular

Can You Solve The Viral 1 + 4 = 5 Puzzle? The Correct Answer Explained

2,546 views / 0 likes - added

This problem was shared on Facebook with the claim that only one in a thousand could figure it out. It went viral and generated over 3 million comments. Here is the problem. If 1 + 4 = 5, 2 + 5 = 12, 3 + 6 = 21, what is 8 + 11 = ? This video presents what

• 03:36

Mind-Controlled Machines Give Paralyzed Patients New Hope | Cyborg Nation

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Brazilian scientist Dr. Miguel Nicolelis is leading the frontier on mind-controlled exoskeletons that can translate thoughts into physical movement. Go inside his lab and find out how he’s helping paraplegics control aid-enabling devices just by thinking.

• 11:30

Why Human Evolution Matters: Crash Course Big History 204

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This week on Crash Course Big History, Emily is talking about process of human evolution, and the knack for innovation that has allowed humans to become so dominant on the Earth. Human innovation, and the ability to build on those innovations generation a

• 10:03 Popular

Liquid Sand Hot Tub- Fluidized air bed

955 views / 12 likes - added

Water filled hot tubs are soooo 2016. Go to http://bit.ly/CasperMarkRober and use promo code "MarkRober" for \$50 off any mattress. They're super dope. By popular demand I have shirts now! I picked the high quality shirts and make \$0 on all items which is

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• 03:21

Can You Solve A Puzzle That Fooled Richard Feynman?

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What is the radius of the circle, in simplest terms involving a, b, and c? I read that even the great mind Richard Feynman made a mistake. Watch the video to learn the common mistake and what the correct answer is. Source Feynman story http://web.media.mi

• 03:30

This Robotic Hand Can Touch And Feel, Just Like A Human Hand | Cyborg Nation

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Imagine robotic fingers that can feel vibrations, textures, and temperatures. For those with prosthetic hands, it’s no longer a dream, it’s reality. Find out how one company is disrupting the prosthetic hand field by mimicking the sensation a hand feels w

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• 03:28

Flower Math Problem - Adults Stumped By Question For Kids In China

389 views / 2 likes - added

This problem is said to come from a test given to a Chinese kindergarten class (5 year olds). It was posted online and caused a lot of debate as adults were stumped about the correct answer, some saying it is impossible. Can you figure it out? This video

• 03:49

How zip codes helped organize America

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Zip codes, explained. Subscribe to our channel! http://goo.gl/0bsAjO Zip codes were invented in 1963 to help the United States Postal Service deal with huge increases in mail volume. The Zone Improvement Plan, or “ZIP” code system of addressin

• 02:55

The Area Model Of Multiplication Song: Multiplication Songs For Elementary Students

583 views / 0 likes - added

Get this video's Companion Worksheet Set + Lesson Plan at: 1. Teachers Pay Teachers - https://www.teacherspayteachers.com/Product/Multiplication-Song-Using-The-Area-ModelSingapore-Method-Lesson-Materials-2299076 2. TES - https://www.tes.com/us/teacher-les

• 01:49

This Matchstick Puzzle Is

275 views / 1 likes - added

This classic matchstick/toothpick puzzle is making the rounds because it is supposedly "extremely hard" for adults. Can you make 3 squares by moving 3 matchsticks? You cannot break any of the sticks, the resulting squares must be of equal size, and each t

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• 10:03

The mystery of 0.577 - Numberphile

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The harmonic series and the elusive Euler–Mascheroni constant. Featuring Dr Tony Padilla. Audible: http://www.audible.com/numberphile (check out Just Six Numbers) Extra footage: https://youtu.be/eRGN8ThZfhU Videos about -1/12: http://bit.ly/minus_twelfth

• 04:32

Does Homeopathy Work?

299 views / 0 likes - added

Subscribe! http://bit.ly/ACSReactions Homeopathy is a category of “alternative medicine” that emerged some 200 years ago. But does it work? While a growing number of people are turning to such remedies to treat a range of health conditions, the majority o

• 04:22

100 Layers of Pop Rocks in Soda Inflates Giant Balloon!

558 views / 2 likes - added

Watch how this balloon inflates when I mix 100 bags of pop rocks and a giant coca cola bottle! I jumped in to the 100 layer video challenges on youtube and decided to do a fun 100 layer science experiment by using 100 packs of pop rocks and putting it int

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• 02:28

Scientists Just Used a Tractor Beam to Levitate the Largest Object Yet

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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

• 01:11

How To Celebrate Christmas On A Volcano

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How do explorers celebrate Christmas? Hint: It's on a volcano. Evolutionary biologist and National Geographic grantee Borja Milá and fellow biologist Christophe Thébaud traveled to Réunion, a volcanic island in the southern Indian Ocean, in hopes of figur

• 04:06

This Technology Wants To Make Wheelchairs Obsolete | Cyborg Nation

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Ekso Bionics has a simple premise: create robotics that help people. And the company is doing just that with its wearable exoskeleton. Using a combination of weight-activated sensors and battery-powered motors, the bionic suit is helping wheelchair-bound

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• 02:39

The Mind-Blowing Mathematics Of Sunflowers - Instant Egghead #59

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Why do the number of spirals in a sunflower match up with the integers 34, 55, 89 and 144 -- numbers found in the famous Fibonacci Sequence? Scientific American editor John Matson explains. -- WATCH more Instant Egghead: http://goo.gl/CkXwKj SUBSCRIBE to

• 03:17

Can YOU Solve It? This Question Stumped 75% Of PhD Economists

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Introductory economics courses cover the concept of an opportunity cost. Can you figure out the opportunity cost for the problem in the video? This video presents a question that surprisingly more than 75% of PhD economists did not answer correctly. Paper

• 05:48

What Is The Area? "You Should Be Able To Solve This"

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Thanks to Reio in Romania for emailing me this fun problem! What is the area? This puzzle was shared with the tagline "you should be able to solve this." Solution to 5th grade Chinese challenge problem https://youtu.be/OuJQaxZvlYs My blog post for this vi

• 05:17

Farewell B11 - Periodic Table Of Videos

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• 04:51

Three Gears Are Possible - Numberphile

179 views / 0 likes - added

Henry Segerman (mathematician and 3D printing guru) discusses how to make three gears work together. Skew dice: https://youtu.be/uAnCL3vhVIs Prime Numbers Playlist: http://bit.ly/primevids Prime Machine: https://youtu.be/8UqCyepX3AI You can buy the gears

• 07:25

Can You Solve The Race To December 31 Riddle?

271 views / 0 likes - added

Here's a fun game you can play with another person. The game starts on January 1. Each of two players takes turns calling out another date. The new date has to be a later date in the year with either the same month OR the same day (from January 1, a playe

• 04:32

Cyborg Cockroaches Could Save Your Life | Cyborg Nation

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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

• 03:47

What Is the Shape of the Universe?

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Unlike the Earth, the universe might actually be flat! But how do scientists know that, if we can’t observe it? Get 20% off http://www.domain.com domain names and web hosting when you use coupon code SEEKER at checkout! Read More: What is the Shape of the

• 13:40

BEST Way To Play Memory (Card Game) - WIN Using Math

435 views / 0 likes - added

The card game of memory (aka concentration) is a children's game to test visual recall. Strategically you can figure out the best move by doing probability calculations. This video explains the best possible way to play the game mathematically. You can le

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• 04:30

Losing Fingers To Chemistry - Periodic Table Of Videos

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The Prof is back in the lab with a Potassium Dichromate reaction and a story of lost fingers! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvid

• 03:31 Popular

What's Matter? - Crash Course Kids #3.1

937 views / 4 likes - added

Hey... what's matter? No no no, not what's THE matter. What's MATTER? In this episode of Crash Course Kids, Sabrina talks about what matter is and the three states of matter: Solid, Liquid, and Gas. She also does a quick experiment that you can do at home

• 08:48 Popular

How to Make SLIME BUBBLES!!! ASMR Starts at 2:35

818 views / 6 likes - added

★ VLOGS: https://www.youtube.com/channel/UCLKXaoU3BdPQasCj62kZ7Eg?sub_confirmation=1 ★ MAIN CHANNEL: https://www.youtube.com/channel/UCJcycnanWtyOGcz34jUlYZA?sub_confirmation=1 Slime and Bubbles together! Hey guys welcome back! In this video I show you ho

• 03:29

Why Do Allergies Make You Sneeze?

418 views / 0 likes - added

Do you suffer from allergies? Follow the dendritic cell and the entire Scientific American Allergy Orchestra to discover how allergens from pollen to pet dander can change the body’s tune. Transcript: Sneezy? Itchy? Perhaps your seasonal allergies have yo

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• 04:11

How To Control Things Using Your Brain (and Open-Source Hardware) | Cyborg Nation

251 views / 0 likes - added

OpenBCI is an open-source hardware that allows a D.I.Y. community of artists, designers, and engineers to innovate, while serving as a tool for research and innovation. From using brain activity to control a toy spider to engaging a group in collective mi

• 05:21

373 views / 1 likes - added

Nowadays it’s not unusual for a search engine to autofill search terms, for streaming music services to suggest new music based on your past preferences, and for advertisers to automatically target you for specific products. But how far can this practice

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• 10:26

Skewes' Massive Number - Numberphile

216 views / 0 likes - added

Dr James Grime on the epic Skewes' Number. Lynda free trial (worth a look): http://www.lynda.com/numberphile Prime numbers: http://bit.ly/primevids Graham's Number: http://bit.ly/GrahamsNumber A small bit we chopped from this video: https://youtu.be/qgN6D

• 04:54

7 Everyday Things You Didn’t Know The Purpose Of | FactoFusion

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Here are 7 everyday things you didn't know the purpose of. There are lots of little things in products and items we use in our daily life, that we don't quite pay attention to and hence don't know the use for. But these things are present for a reason and

• 05:56

Contains Loud Bangs - Periodic Table Of Videos

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• 11:14

19 SWEET AND WONDERFUL DIY IDEAS FOR YOUR CAKE

29 views / 0 likes - added

AWESOME DIY SWEET DECOR IDEAS Cooking is for everyone and we are here to prove it. You can cook like a chef. It's not that difficult! In fact, you have to be very precise not only about the taste but also about the way it looks. Who said that beautiful de

• 09:11

Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

340 views / 0 likes - added

Start with a unit square (a rectangle with both sides equal to 1, call it R1). Attach a rectangle of area 1 to its right side, then attach a rectangle of area 1 to its top. The border of this new shape is another rectangle, call it R2. We can repeat the p

• 08:19

Can You Solve The Spies Sharing Secrets Puzzle?

231 views / 0 likes - added

After a successful mission, each of N spies obtains a unique secret. By protocol, the spies share secrets by a series of phone calls between 2 spies at a time. During a call, a spy can share all the secrets the knows, including secrets learned from previo

• 13:45

17 STUNNING DIY FLOWERS YOU CAN CREATE IN 2 MINUTES

178 views / 0 likes - added

This video is all about the flowers, whether the real or fake ones!These flower ideas are extremely creative and fun! You can make beautiful floral prints for your clothes, floral letters and numbers for room decoration for a party or any other kind of ev

• 05:57

Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

508 views / 1 likes - added

This problem was given to Primary 6 (age 11-12) students in Singapore. What is the area of the shaded region in the video, which consists of the region bounded by 4 quarter circles in a 3x3 grid of squares, and each square has a side length of 4? The shad

• 06:24

Can You Solve The Missing Sock Puzzle?

230 views / 0 likes - added

A statistician keeps a simple wardrobe. He only purchases pairs of black socks and white socks, and he keeps all of the socks in a pile in the drawer. Recently one of the socks was lost in the laundry. The socks have a mathematical property. If you select

• 03:51

Can You Solve This MIT Admissions Question? Geometry Problem, 1869

320 views / 0 likes - added

The Massachusetts Institute of Technology (MIT) is one of the top ranked universities in the world. This question appeared on its admissions exam nearly 150 years ago. "The perpendicular dropped from the vertex of the right angle upon the hypotenuse divid

• 03:16

Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

268 views / 0 likes - added

What is angle A in the star-shaped figure? This problem appeared on the 1999 AMC 8 test (intended for 8th grade students in the US). Approximately 75% of test-takers did not mark the correct response. Can you figure it out? Watch the video for a solution.

• 08:05

Can You Solve The Hardest Easy Geometry Problem?

402 views / 1 likes - added

In the figure, what is the value of angle x? This problem is known as Langley's Adventitious Angles. It is also known as the hardest easy geometry problem because it can be solved by elementary methods but it is notoriously difficult to work out. Can you

• 03:48

Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

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The Harvard admissions exam in 1869 included this algebra problem: "A man bought a watch, a chain, and a locket for \$216. The watch and locket together cost three times as much as the chain, and the chain and locket together cost half as much as the watch

• 06:52 Popular

100 FEET PAPER AIRPLANE: Let's Make A Paper Plane That Flies | Air Enforcer

1,177 views / 6 likes - added

Paper Airplane Instruction / How to make a paper plane with Tri Dang. ► Subscribe Main Channel: http://goo.gl/wAFe3s ◄ ► Subscribe Origami Channel: http://youtube.com/paperartland◄ ------- Huge credit is given to Origami Air Enforcer. He has invented a ne

• 01:43

NERF Dart Breaks the Sound Barrier, yes really

310 views / 1 likes - added

How fast is the fastest Nerf dart? Will it break the sound barrier? Well... Yes, it does, 2.3 times the speed of sound at standard conditions. Pretty insane... In this episode, I Mythbuster up and measure the speed the dart travels. The hight speed camera

• 11:27

Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

607 views / 1 likes - added

If 11x11=4 and 22x22=16, what is 33x33=? This puzzle has been shared with the claim that only geniuses can solve it. It has gotten millions of views on the internet and Facebook as people have debated the correct answer. In this video I present what many

• 11:11

20 EPIC MAGIC TRICKS ANY KID CAN DO

153 views / 0 likes - added

World’s most famous magic tricks finally revealed! Are you ready to go behind the scenes?If so, then here's what you're gonna see! DON'T READ THIS IF YOU WANT NO SPOILERS! ;) I'll tell you how the most famous tricks are created: rabbit in the hat, where t

• 01:29

179 views / 0 likes - added

Imagine you spent your entire childhood, teenage years, and young adulthood stuck inside a small closet. One day, after much of your life has passed you by, you realize that you can just open up the door, change into some more appropriate clothes, and hit

• 05:07

Memory Champion Teaches You How To Memorize Anything

262 views / 0 likes - added

Joshua Foer can remember anything, including the first 100 digits of Pi. The former U.S.A. Memory Champion explains how he—and you—can memorize anything using the major system technique, which converts numbers into words and images. SUBSCRIBE for more vid

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• 02:51

The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

587 views / 1 likes - added

A lot of people are arguing over the correct answer to this algebra problem involving horses, horseshoes, and boots. A Facebook post with this problem has over 500,000 comments. Can you figure it out? In this video I explain the correct answer. Blog post:

• 09:09

The Impossible Hugeness of Deep Time

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You can learn more at https://curiositystream.com/smart SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Humans have a hard time with really big numbers, especially when it comes to DEEP TIME. The history

• 01:15

The Tiny Mossy Frog Clings for Survival

154 views / 2 likes - added

This little guy is a mossy frog. Located predominantly in the flooded caves of Vietnam, these tiny amphibians have a very unique camouflage to ward off prey. With their blotchy green and brown skin, they can easily hide in plain sight by blending in with

• 05:33

What is 6÷2(1+2) = ? The Correct Answer Explained

467 views / 0 likes - added

What is 6÷2(1+2) = ? This problem went viral and generated millions of comments on Facebook, Twitter, YouTube and social media sites. I explain how to get the correct answer by using the modern interpretation of the order of operations. I also explain how

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• 05:26

Can You Solve The Red Ball Lottery Puzzle?

249 views / 0 likes - added

(Same video without the music: https://youtu.be/sz5oLEpc8xE) This problem involves 100 red balls, 100 blue balls, and 2 urns. First you distribute all the balls between the 2 urns, placing at least 1 ball in each urn. Next, you select an urn at random, an

• 03:50 Popular

Part(icles) Of Your World: Crash Course Kids #3.2

1,915 views / 1 likes - added

Have you ever heard the phrase, "You look like a Million Bucks?" Well, you do... but you also look like a million particles. In this episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us ho

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• 06:02

What If Ice Did Not Float? - Periodic Table Of Videos

194 views / 0 likes - added

The Professor muses on a world in which ice sinks to the bottom!? See also what if the universe is just a computer simulation: http://www.youtube.com/watch?v=YOxDb_BbXzU Made to coincide with YouTube's Geek Week. More chemistry at http://www.periodicvideo

• 07:02

Discovering the Past Through Dinosaur Poop

128 views / 0 likes - added

Please support our videos http://www.patreon.com/scifri Although the praire outside of Choteau, Montana is best known as the fossil quarry that provided definitive paleontological insights into the parenting habits of dinosaurs, it’s also the perfec

• 01:15

Lighting A Splint (slow Motion) - Periodic Table Of Videos

224 views / 0 likes - added

Just a quick one, but one of Professor Pete Licence's favourite reactions - a glowing splint lights in Oxygen. (yes, Professor!) More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitte

• 04:16

Caesium In Water (slow Motion) - Periodic Table Of Videos

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Everyone's favourite alkali metal - Caesium - reacts with water. Discussed by Professor Martyn Poliakoff. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com

• 06:48

Rubidium, Water And Indicator (slow Motion) - Periodic Table Of Videos

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We drop Rubidium into water - but with Phenolphthalein in the water to act as an indicator. Discussed by Professor Martyn Poliakoff. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Tw

• 05:26

Liquid Oxygen (slow Motion) - Periodic Table Of Videos

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Dropping hot charcoal into liquid oxygen - filmed with a high-speed camera. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the Schoo

• 03:09

Can You Solve The Marriage Logic Problem? 80% Fail

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Surveys have found 80 percent get this logic problem wrong. Alice is looking at Bob, and Bob is looking at Charlie. Alice is married; Charlie is not. Is a married person looking at an unmarried person? Answer choices are A) Yes, B) No, and C) Cannot be de

• 09:43

Smelly Chemistry - Periodic Table Of Videos

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Mercaptans - or Thiols - are some of the smelliest chemicals around. We didn't dare open the bottle. PsyFile: https://www.youtube.com/psyfile More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos

• 05:43

Sodium V Water (slow Motion) - Periodic Table Of Videos

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A water droplet lands on a piece of molten sodium - you know the rest! Discussed by Professor Martyn Poliakoff. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitt

• 07:25

How Not to Put Out a Metal Fire - with Steve Mould

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It's a terrible idea to try to extinguish burning metal with a water or CO2 fire extinguisher. Steve Mould shows why. Subscribe for regular science videos from the Ri: http://bit.ly/RiSubscRibe and be sure you check out Steve's channel - https://www.youtu

• 03:54

What's The Best Soup Can Size? The Optimal Cylinder Puzzle

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A cylindrical can with volume V can be made in different ways. The cylinder can be wide and short (large radius and small height), or it can be narrower and taller (small radius and larger height). Which shape uses the least material? That is, which can h

• 11:13

Redox Reactions: Crash Course Chemistry #10

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All the magic that we know is in the transfer of electrons. Reduction (gaining electrons) and oxidation (the loss of electrons) combine to form Redox chemistry, which contains the majority of chemical reactions. As electrons jump from atom to atom, they c

• 03:29

Meet the Man Protecting Venezuela’s Eagles

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Alexander Blanco Márquez is a veterinary doctor going to great heights to save the harpy eagles of Venezuela. As victims of poaching and deforestation, these beautiful birds have been diminishing in numbers over the years. Watching their species destroyed

• 10:30

Can We Get Older Without Aging?

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Learn more about opportunities from KiwiCo here: https://www.kiwico.com/okay SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ Nothing is guaranteed in life except death, taxes, and entropy. What do other

• 09:53

Radon - Periodic Table Of Videos

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Here is a new video from us about Radon, including a look at a historic letter and a German cloud chamber! With thanks to the Royal Society and GSI. For those with annotations, the caption at the end for Radon should clearly be Rn, not Ra - sorry! More ch

• 06:49

Gold Bullion Vault - Periodic Table Of Videos

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We're INSIDE a Gold Bullion Vault. The Bank of England protects about £197 billion (\$315bn) worth of gold, according to the mostly recently published figures. Film by Brady Haran. Featuring Professor Martyn Poliakoff. The vaults are off limits, but the Ba

• 02:44

Explosives Legend - Periodic Table Of Videos

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The Professor oversees the installation of a "blue plaque" for the late great Colonel BD Shaw. See out-takes from this video (and why Brady gets angry at truck drivers) at: http://www.youtube.com/watch?v=LN7BLUWBuBI More chemistry at http://www.periodicvi

• 07:40

Can You Solve The 21 Flags Game From Survivor?

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Contestants on the TV show "Survivor" faced off in a series of challenges for a grand prize of \$1 million. Most of the challenges were physical like hiking many miles or diving underwater. But one challenge was mathematical. The game had 21 flags and cont

• 07:21

Can You Solve The Magical Pond Puzzle?

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(Same video with music: https://youtu.be/nF-Gpk0ZpRk) You visit a shrine that has 3 temples. Before each temple, you have to swim in a magical pond. Your path is pond-temple1-pond-temple2-pond-temple 3. Each time you swim, the pond magically triples the n

• 02:37

Adults Stumped By Maths Questions For 15 Year Olds. Can You Solve Them?

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How hard are math tests? A survey asked 2,000 UK adults to answer sample GCSE test questions intended for 15 year old students. On average, the survey questions were missed by about 40% of adults. Can you solve them? The video presents 2 questions that ma

• 02:09

Brush Teeth Song | BRAND NEW! | Little Baby Bum Nursery Rhymes & Kids Songs | Songs for Children

578 views / 0 likes - added

• 12:32

How They Found The World's Biggest Prime Number - Numberphile

223 views / 0 likes - added

Featuring Matt Parker... See part one at: https://youtu.be/tlpYjrbujG0 Part three on Numberphile2: https://youtu.be/jNXAMBvYe-Y Matt's interview with Curtis Cooper: https://youtu.be/q5ozBnrd5Zc The previous record: https://youtu.be/QSEKzFGpCQs Mersenne Nu

• 08:31

Can You Make Oobleck From Chocolate? Edible Oobleck Experiment!

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In this video I show you how to make edible oobleck! I test how the oobleck changes with the coke, chocolate milk and cheese mixed in with it to answer the question whether or not you can make oobleck with different liquids. Then I eat them at the end and

• 00:38

Sesame Street:“The Best of Elmo 3” Preview

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It’s all Elmo all the time in this collection of the best moments with everyone’s favorite furry red monster - Elmo! Elmo sings and dances his way through letters, numbers, vocabulary, and emotions with his Sesame Street pals. A few of Elmo's famous frien

• 31:39
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Parents can Relax while Babies & Toddlers Learn Counting to 10 with Busy Beavers' New 30 Minute Compilation. This Video is Filled with Catchy Songs & Fun Lessons that will Teach Kids Numbers from 1 to 10. Click Here to Buy Busy Beavers Plush Toys from Ama

• 02:48

Here’s Everything You Need to Know About Saturn’s Iconic Rings

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Saturn’s rings are iconic and instantly recognizable, but what exactly are they and how did they form in the first place? NASA Just Revealed There Could Be Life On Saturn's Moon, Enceladus - https://youtu.be/YIVh53TBonM Get 20% off http://www.domain.com d

• 02:57

Can You Solve This Crazy Equation? Ramanujan's Radical Brain Teaser

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In 1911, Srinivasa Ramanujan posed this problem involving an infinite nested radical (a never-ending expression that has square roots inside of square roots). Can you figure out how to simplify the equation? The video presents an intuitive solution. Techn

• 08:51

The Viral Balloon Puzzle - The REAL Answer Explained (Using Ph.D. Level Math)

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They say only geniuses can solve this puzzle, and this time they are correct. Thanks to all patrons! Special thanks to: Shrihari Puranik Yildiz Kabaran Kyle My blog post for this video https://wp.me/p6aMk-82U Sources https://puzzling.stackexchange.com/que

• 04:35
139 views / 0 likes - added

Princess 123s Teaches the Numbers and Countin by Playing a Fun Game with Billy Beaver. Your Little Girl or Boy Will Love Learning how to Count with this Beautiful Princess. Love this Video? Check Out the Busy Beaver TV Show! http://bit.ly/BBTV-Season-1 "T

• 07:38

188 views / 0 likes - added

Free audio book offer: http://www.audible.com/numberphile Dr James Grime delves into the largely unresolved world of Lychrel Numbers? James Grime: https://twitter.com/jamesgrime For audio books by Numberphile stars, go to Audible and search these names; H

• 05:52

Can You Solve The "MEANEST" SAT Test Question Ever?

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On the SAT exam, you have about 2 minutes to read and solve each math question. This one about averages can send you in a loop, unless you approach it systematically. In the video I also explain a shortcut to help you solve this type of problem quickly. S

• 04:24

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You know that hissing noise you get in your headphones when there's no music playing? WTF is that? Should You Be Listening To Music At Work? - https://youtu.be/BsWDF8lIGFs Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI Big thanks to our sp

• 03:56

Where Do Baby Carrots Come From?

167 views / 1 likes - added

If you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa

• 05:31

In The Footsteps Of Tizard - Periodic Table Of Videos

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Prof T-shirts: http://dftba.com/product/14y/The-Professor-Shirt The Professor discusses the life and work of war-time chemist Henry Tizard - who went to the same school as him! The duo went to Westminster School. More chemistry at http://www.periodicvideo

• 08:09

Chemistry Dubstep (behind The Scenes)

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How Dave and Adam created out chemistry dusbtep video - see the main video at http://www.youtube.com/watch?v=TcvZL6fx-lU Visit Dave and Adam's channel at: http://bit.ly/boyinaband More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at h

• 01:16

Don’t Mess with the Texas Horned Lizard

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This vicious-looking guy is a Texas horned lizard. They’re defensive critters, with the horns to prove it. Frequently preyed upon by other animals, their distinct coloration and ability to inflate or flatten their bodies allow these lizards to hide in pla

• 02:10

5 Unbelievable Facts: FAKE? or PHYSICS?

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Test yourself with our April Fools’ Day game: Fake or physics? SUBSCRIBE: http://youtube.com/whatthephysics?sub LINKS AND DETAILS: More details: #1. Speed of sound: Unlike light, sound needs a medium to travel through, and its speed depends on characteris

• 18:05

16 COLORFUL AND SWEET DIY CRAFTS FOR THE WHOLE FAMILY

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AWESOME HACKS AND CRAFTS FOR THE WHOLE FAMILYToday, we prepared for you a lot of cool and fresh summer ideas that will turn every day into a celebration and pure fun! All these crafts are very cheap and easy to repeat. Let's go crafting!First, come amazin

• 12:25

Fantastic Quaternions - Numberphile

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Dr James Grime discusses a type of number beyond the complex numbers, and why they are useful. Extra footage: https://youtu.be/ISbJ9S0fzwY NUMBERPHILE Website: http://www.numberphile.com/ Numberphile on Facebook: http://www.facebook.com/numberphile Number

• 07:36

Can This New Method of Recycling Reduce Fashion Waste?

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Considered the alchemist of waste, materials scientist Veena Sahajwalla is closing the loop on fast fashion by tapping into fabrics molecular potential.Watch more Focal Point: https://bit.ly/2GEgBpxRead More:Nothing Should Be Classified As Waste': Crisis

• 04:47
129 views / 0 likes - added

Princess 123s Teaches Babies & Toddlers how to Count while playing a Fun & Easy Game with Billy Beaver. Our "Princess" series is Great for Teaching Children the Numbers, The Alphabet, Colors and Shapes. Love this Video? Check Out the Busy Beaver TV Show!

• 03:50

192 views / 0 likes - added

Scientists have figured out how our brains process thoughts and the explanation will blow your mind. Can Shocking Your Brain Make You Smarter? - https://youtu.be/LSwMwX9BbGc Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1PxI We got nominated f

• 04:48

Moonlight (Clair de Lune)

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This visualization attempts to capture the mood of Claude Debussy's best-known composition, Clair de Lune (moonlight in French). The piece was published in 1905 as the third of four movements in the composer's Suite Bergamasque, and unlike the other parts

• 12:59

20 GORGEOUS AND EASY DIY FLOWERS FOR YOUR MOM

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These are gorgeous and easy DIY flowers for your Mom! This video is all about the flowers, whether the real or fake ones!These flower ideas are extremely creative and fun! You can make beautiful floral prints for your clothes, floral letters and numbers f

• 05:17

If Global Warming Is Real, Why Is Antarctic Ice Growing?

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NASA just released a study showing that Antarctica is actually gaining ice at a faster rate than it’s losing it. Will this rise in ice help keep global warming at bay? What Happens If All The World’s Ice Melts ►►►► http://dne.ws/1Stb0jj Sign Up For The Te

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• 06:24

Iodine Clock (slow Motion) - Periodic Table Of Videos

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See the famous Iodine Clock reaction filmed with a high-speed camera. Explained by Professor Martyn Poliakoff. Also featuring Dr Samantha Tang. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideo

• 04:27

How Close Are We To An Invisibility Cloak?

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Invisibility cloaks seem to be science fiction, but science is making them a reality. Don't miss Telescope premiering Feb. 20 at 9/8c on Discovery! How Brain Waves Can Control Physical Objects ►►►►http://bit.ly/1XvLX1M Sign Up For The TestTube Newsletter

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• 03:44

Something Special About 399 (and 2015) - Numberphile

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It is the lowest Lucas-Carmichael Number... Featuring Ed Copeland. More about Ed's real work: http://bit.ly/CopelandGoesLong With thanks to these Patreon supporters: Herschal Sanders (from Susan) Today I Found Out Lê OK Merli Alex Bozzi Thomas J Petersen

• 18:55

4.669 - Numberphile

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Binge on learning at The Great Courses Plus: http://ow.ly/Z5yR307LfxY The Feigenbaum Constant and Logistic Map - featuring Ben Sparks. Ben Sparks: https://twitter.com/SparksMaths Random numbers: https://youtu.be/SxP30euw3-0 Mandelbrot Set: https://youtu.b

• 03:58

What is the biggest number? | Your Questions | We The Curious

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What is the biggest number in the world? Do dreams have a purpose? Nerys and Sarah are back with some of the answers to your questions. Got a question you want answered? Leave it in the comments below!What do you dream about? Do you think it means anythin

• 03:05

What's the Best Way to Cook Pasta?

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Take the PBS Digital survey! https://www.surveymonkey.com/r/pbsds2017 Subscribe! http://bit.ly/ACSReactions Pasta noodles contain only three ingredients: eggs, water and flour. But how can you achieve a tasty result every time? Cooking pasta chemically ch

• 03:22

How Lions Say Hello | The Lion Whisperer

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This year marks 2 DECADES of Kevin's relationships with the lions. Here are some highlights of how the good friends say hello! Subscribe here: http://bit.ly/LionWhispererTV and help #SaveLions Website: http://www.lionwhisperer.co.za Twitter: https://twitt

• 13:01

12 BEST DIY MOTHER'S DAY GIFT IDEAS

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Check out these amazing Mother's Day gift ideas! This video is all about the flowers, whether the real or fake ones!These flower ideas are extremely creative and fun! You can make beautiful floral prints for your clothes, floral letters and numbers for ro

• 09:50

Can You Solve This 6th Grade Geometry Problem From China?

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What is the total area of the red spots? The diagram involves a rectangle with dimensions of 10 and 20. Inside the rectangle one of its diagonals is connected. There are two circles of equal size that are tangent to each other and the rectangle. The video

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• 09:03

Seaborgium - Periodic Table Of Videos

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We're at Berkeley for filming of a new video about Seaborgium - a synthetic element named after the legendary Glenn Seaborg. With thanks to Darleane Hoffman and Alexander Pines at the University of California, Berkeley, and to the Lawrence Berkeley Nation

• 06:18

Can You Solve The Diluted Wine Puzzle?

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A servant has a method to steal wine. He removes 3 cups from a barrel of wine and replaces it with 3 cups of water. The next day he wants more wine, so he does the same thing: he removes 3 cups from the same barrel (now with diluted wine) and replaces it

• 1:12:01

"Baby Star" Colors for Children to Learn with Songs, Shapes, ABCs & Nursery Rhymes by Busy Beavers

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Learn Colours, Shapes, ABCs & More in this Children's Compilation of Songs & Lessons by Busy Beavers. Our Catchy Songs & Colorful Animation Make Education So Much Fun Kids' Forget they're Learning. Super Circus 3D Color Cars Jump (Red Car) 00:04 The Bus i

• 03:13

Pollution Is Changing The Sex Of These Animals!

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What if our gender was determined by external temperature at a certain point in fetal development? For these animals, this is the reality! How Does Asexual Reproduction Work? - http://bit.ly/28NW9Cr Sign Up For The Seeker Newsletter Here - http://bit.ly/1

• 05:55

215 views / 0 likes - added

About 5 million years ago, a new predator made its way from the south and onto the coastal plains of North America. It was a giant, flightless, carnivorous bird and came to be known by one of the coolest and most richly earned nicknames in all of paleonto

• 02:25

Comparing Decimals Song: Online Education Student Music Videos

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Get the Companion Worksheet Set and other Video-Linked Teaching Resources at:Teachers Pay Teachers[http://goo.gl/cfW2G8] TES[http://goo.gl/jXgRhd] Subscribe to NUMBEROCK'S YouTube Channel. http://goo.gl/3H3bJ6 Ordering Decimals and Comparing Numbers shoul

• 1:12:01

Color Songs Collection Vol. 2 | Learn Colors, Teach Colours, Baby Toddler Preschool Nursery Rhymes

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Toddlers will Learn Colors, Shapes, The Alphabet, Counting, Nursery Rhymes & More with this Long-Play Busy Beavers Collection. Children Love Our Catchy Songs & Cute Characters but the Best Thing about Busy Beavers is that Kids have so Much Fun they don't

• 02:41 Popular

Let's Get Fit | Count To 100 | Count To 100 Song | Counting To 100 | Jack Hartmann

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Teach your children to count to 100 as they get some great exercise too. This cool kid-friendly song starts out with a message about staying healthy and fit and having fun counting to 100 together. It's a great count to 100 song for Kindergarten. I show t

• 07:09

Iridium - Periodic Table Of Videos

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Up close with some big samples of real Iridium. Our thanks to Johnson Matthey. See all the elements at http://bit.ly/118elements Naming Iridium: http://www.youtube.com/watch?v=fe6SjQRzxZQ Gold Vault: http://www.youtube.com/watch?v=CTtf5s2HFkA More chemist

• 06:40

Barking Dog (slow Motion) - Periodic Table Of Videos

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Barking Dog reaction at 3000 frames per second. More about filming & editing this video: http://youtu.be/vfKUG11FKGE The Barking Dog is combustion of nirous oxide (laughing gas) and sulfur dioxide. This video features Martyn Poliakoff, Pete Licence and Da

• 02:44

Dividing a Whole Number by a Fraction by NUMBEROCK

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A journey into medieval times is the perfect setting to learn how to divide a whole number by a fraction. Ivan is everyones favorite stone mason as he builds walls and seats from blocks of rocks for us to contemplate what it means to divide by a fraction.

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• 05:46

Neptunium - Periodic Table Of Videos

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We get a close-up look at Neptunium during a visit to the National Nuclear Laboratory at Sellafield. This video features Mark Sarsfield from NNL - and periodicvideos regulars Steve Liddle and Martyn Poliakoff from the University of Nottingham. With thanks

• 06:39

New World's Biggest Prime Number (PRINTED FULLY ON PAPER) - Numberphile

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Matt Parker on the latest Mersenne Prime to take the title of "world's biggest prime". He had it printed! More from this interview very soon, including details of how the prime was found. PART TWO: https://youtu.be/lEvXcTYqtKU PART THREE on Numberphile2:

• 02:41

Saving South America’s Only Bear Species

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The Andean bear, also known as the spectacled bear, is sometimes called the Paddington bear, after the fictional bear in children's books written by Michael Bond. The spectacled bear is the only bear species in South America, and its numbers are dwindling

• 04:47

How Do We Decide Speed Limits?

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We know speed limits exist to prevent speeding related car accidents, but how exactly are they chosen? How Safe Are Self-Driving Cars? ►►►► http://bit.ly/20wW8ER Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG Read More: Long-Term Effe

• 02:29

Preserving Prehistoric Lizards With the Iguana King

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We’ve all met a crazy cat lady or maybe a neighbor with an insane collection of pet turtles. Now, let us introduce you to Ramón Medina Archundia: the iguana guy. Archundia loves iguanas so much that he fosters hundreds of them in his front yard in Manzani

• 08:56

How America became a superpower

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From a colony to a superpower in 200 years. Subscribe to our channel! http://goo.gl/0bsAjO 2:07 Correction: Cuba seceded from the US in 1902. With over 800 military bases around the globe, the US is easily the most powerful nation on earth. But it wasn't

• 01:46

Red-Hot Platinum Ingot - Periodic Table Of Videos

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Casting a 4kg platinum ingot. It's worth... well, that depends on today's platinum price! More from our visit: https://www.youtube.com/watch?v=Fg2WzCzKpYU Subscribe to computerphile - http://bit.ly/XqEDYi Filmed at Johnson Matthey - our thanks to them. Mo

• 09:52

Boiling Water - Periodic Table Of Videos

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Original Everest video: http://www.youtube.com/watch?v=JTL4dj3Gx1o This video features Martyn Poliakoff, Samantha Tang and Neil Barnes. Thanks to Buddhi Rai and Chandra Rai for all theri help with the Everest boiling. More chemistry at http://www.periodic

• 05:40

Old School Professor - Periodic Table Of Videos

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Professor Martyn Poliakoff visits Westminster School, where he scored 6 out of 10 on his first chemistry experiment! The Prof gave the annual Tizard Lecture. More at: http://www.youtube.com/watch?v=4CK4WHElb4Q Here is his Nyholm Lecture: http://www.youtub

• 04:39

Famous Science Spectacles - Periodic Table Of Videos

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Joseph Priestley made a famous discovery - but it seems his eyesight wasn't too good? Royal Society (Romantic Chemistry Exhibition until June 14): http://royalsociety.org/events/2012/romantic-chemistry/ Professor Martyn Poliakoff is Foreign Secretary of t

• 16:30

HOW FAST DID MOZART AND BEETHOVEN REALLY PLAYED ?

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Fasten your seatbelts. Beethoven, Czerny, Moscheles, Chopin, the 18th c. French composers and theoretics, they left us tens of thousands exact indications of how fast they wanted us to play their music. And yet, today, almost nobody takes that seriously.

• 09:21

How does the International Space Station work?

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Help me make more videos: www.patreon.com/JaredOwenAnimations The International Space Station is the largest man made object in space. It was built in pieces and then launched into space and assembled in orbit. In this video we'll go over some background

• 08:29

The Uncracked Problem With 33 - Numberphile

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33 is the lowest unsolved problem in the world of "summing three cubes". But 30 was also a tough nut to crack! Featuring Tim Browning from the University of Bristol. Taxi Cab Numbers: https://youtu.be/LzjaDKVC4iY Fermat's Last Theorem: https://youtu.be/qi

• 03:49

The Trinity Hall Prime - Numberphile

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A prime number "gift" from a mathematicians leaving his college. More links & stuff in full description below ↓↓↓ Featuring Tadashi Tokieda. More Tadashi: http://bit.ly/tadashi_vids Professor McKee explains: "Most of the digits of p were fixed so that: (i

• 03:33

Engineers Made Fake DNA To Fix Genetic Disorders

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Can you alter DNA to cure blood diseases like thalassemia? Engineers look into peptide nucleic acid molecules to explore the possibilities! Animal Planet GO – http://smart.link/57ae190980d80 What is CRISPR & How Could It Edit Your DNA? - https://youtu.be/

• 05:17

How Much Does It Cost To Run For President?

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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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• 09:27

Large Gaps between Primes - Numberphile

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James Maynard on discoveries about large gaps between prime numbers. More links & stuff in full description below ↓↓↓ More Maynard videos: http://bit.ly/JamesMaynard Prime Playlist: http://bit.ly/primevids The 20 August paper: https://arxiv.org/abs/1408.4

• 05:53

Quantum Eraser Lottery Challenge | Space Time | PBS Digital Studios

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Matt challenges you to use quantum physics to win the lottery. Are you up to the task? Previous Episode on Quantum Eraser https://www.youtube.com/watch?v=8ORLN_KwAgs Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Faceb

• 03:39

Introduction To Subtraction | Basic Addition And Subtraction | Early Math | Khan Academy

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Learn what it means to subtract. The examples used in this video are 4-3 and 5-2. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/early-math/cc-early-math-add-sub-basics/cc-early-math-add-sub-intro/e/subtractio

• 09:21

17 YUMMY AND CUTE EGG IDEAS FOR KIDS

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EGG LIFE HACKS AND USEFUL IDEAS Eggs! I bet that every second fridge in the world has at least a couple of eggs in it. I can hardly imagine some product in the world that is more popular than eggs. Every cuisine in the world uses eggs. Every second dish n

• 03:23

Spots On A Die | Addition And Subtraction Within 100 | Early Math | Khan Academy

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• 03:36

Addition Using Groups Of 10 Intro | Addition And Subtraction Within 100 | Early Math | Khan Academy

269 views / 0 likes - added

• 09:29

Water Boiling At Everest - Periodic Table Of Videos

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Boiling water at various altitudes on the trek from Lukla to Everest Base Camp. Part Two: https://youtu.be/sCh2T9axLyY Nepal Flag: http://bit.ly/10G3Ef3 Everest 8848: http://bit.ly/11ilGvs More scenic clips from Brady's trip: http://bit.ly/12di1M8 Special

• 02:06

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• 03:56

Place Value Song For Kids | Ones, Tens, and Hundreds | 1st Grade, 2nd Grade, 3rd Grade]

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Place Value Song for Kids by NUMBEROCK | 1st Grade, 2nd Grade, 3rd Grade, 4th Grade | Includes Thousands and Milllons. Buy our EBOOK and Lesson Library for 70% off: https://www.teacherspayteachers.com/Product/Printables-Worksheets-for-Cool-Math-Video-Less

• 03:55

3D Body Scanning Is Here, and It Could Change How You See Yourself

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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

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18 COOL DIY IDEAS AND CRAFTS WITH SLIME AND JELLY

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COOL AND USEFUL SLIME IDEAS Slime is such fun to play with! Especially, when it's unlimited and you can always make more. The coolest thing is that you can make use out of slime - it's not just for fun. In this video, you can find a lot of awesome ideas,

• 03:53

What Is Zero? Getting Something From Nothing - With Hannah Fry

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Is zero really a number? How did it come about? Hannah Fry tells the story of how zero went from nothing to something. Subscribe to our channel for weekly science lectures and short films: http://bit.ly/RiSubscRibe Help translate this film: http://www.you

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• 03:50

"What U Workin' With?" by Gwen Stefani - Cover by Ashlund Jade | Trolls presents SONGS THAT STICK

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• 03:34

Your Body Is Designed to Attack a New Organ, Now We Know Why

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Scientists think they've found the molecular basis for organ transplant rejection. Now that we know its cause, could we prevent its effect? Scientists Want to Transplant a Human Head, Here's Why That's a Bad Idea - https://youtu.be/CMHhF5N1FPY Sign Up For

• 04:11 Popular

Subtracting Ten Or One Hundred | Addition And Subtraction Within 100 | Early Math | Khan Academy

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Learn how to subtract 1, 10, or 100 from a number. 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-sub-ones-tens-hundreds/e/subtract-within-1000--level-1?utm_s

• 03:02

Why These Planes Don't Need Pilots

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Did you know radio controlled aircrafts date back to World War II? How much have these planes changed since their inception? Read More: Almost 1 In 3 U.S. Warplanes Is a Robot http://www.wired.com/2012/01/drone-report/ “Remember when the military actually

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• 03:33

Do SpaceX’s Reusable Rockets Actually Make Space Travel Cheaper?

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Elon Musk has established himself as a game changer for space travel, but has he actually succeeded in making it affordable? Where Does Space Actually Start? - https://youtu.be/gLf0dT3To4M Read More: Why Did NASA End The Space Shuttle Program? https://giz

• 11:57

The Wallis Formula For π

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Start with the pair of fractions (2/1)(2/3). Now increment each number by 2 to get the pair of fractions (4/3)(4/5). Repeat this to get the next pair, and repeat this infinitely many times. If you then multiply all the fractions, you get a marvelous value

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Understanding Place Value While Subtracting Ones | Early Math | Khan Academy

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• 12:34 Popular

LET'S GO FISHING GAME Surprise Eggs Opening Toys Family Fun Activity for Kids Learn Colors

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Ryan and his mom are playing Let's go fishing game! The winner of this family fun activity will get Eggs Surprise Minions, Disney Marvel Avengers Egg, and Paw Patrol Egg! Great Kids Video to learn colors for kids and baby! Kids can collect all the fish, o

• 04:33

Can you solve Zeno's paradox? - Brain Teaser

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Zeno's paradox is one of the most well know math puzzles in history. Is it possible to add an infinite amount of numbers and get an exact value? This is one example of Zeno's paradox. Try and solve this paradox and learn about the Greek philosopher Zeno i

• 07:47

Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

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This problem has been asked in job interviews. On the morning of January 1, a hospital nursery has 3 boys and some number of girls. That night, a woman gives birth to a child, and the child is placed in the nursery. On January 2, a statistician conducts a

• 07:49

Palladium - Periodic Table Of Videos

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For our updated Palladium video, we are mining the Royal Society archives for the story of its discovery - a tale of money, an asteroid and stolen samples? The discovery was made by William Hyde Wollaston. Royal Society (Romantic Chemistry Exhibition unti

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Losing Tennis Balls | Addition And Subtraction Within 100 | Early Math | Khan Academy

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• 07:21

Mercury And Relativity - Periodic Table Of Videos

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A new paper discusses how relativity plays a role in Mercury's low melting point. Planet Mercury (Sixty Symbols): http://youtu.be/rZU8Y9DIBtI Copernicium: http://youtu.be/fqCdP9Uw5vo Gallium: http://youtu.be/N6ccRvKKwZQ Gold Vault :http://youtu.be/CTtf5s2

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• 01:39

Maria von Trapp teaches Julie Andrews to Yodel

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Julie Andrews meets the real Maria von Trapp from the 45th anniversary Blu-ray of THE SOUND OF MUSIC. Originally from The Julie Andrews Hour. The 1965 film The Sound of Music is produced and directed by Robert Wise, and starring Julie Andrews and Christop

• 04:39

High Speed Chemistry - Periodic Table Of Videos

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Filming chemistry with a high-speed camera - main videos coming soon, but here's a preview and chance to see someone stroke The Prof's hair! Reactions filmed with a Phantom Miro (awesome!). We used this: http://www.visionresearch.com/Products/High-Speed-C

• 05:04

Holy Smoke And A New Pope - Periodic Table Of Videos

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We use the Vatican's own recipe to re-create the black and white smoke used during the Papal Conclave. The cardinals elected a former chemist as Pope - Pope Francis! Black Smoke = No Pope White Smoke = Pope This video features Dr Darren Walsh. Thanks also

• 07:39

Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

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A single alien lands on Earth. Every day after that, each alien on Earth undergoes a transformation, which could be any of the four equally likely events: (a) the alien dies, (b) the alien does nothing, (c) the alien replicates itself (2 aliens total), (d

• 03:35

"Holiday" by Madonna - Cover by Sunny Keller | Trolls presents SONGS THAT STICK

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Sunny Keller covers "Holiday" by Madonna Trolls Holiday When the eternally optimistic Poppy, queen of the Trolls, learns that the Bergens no longer have any holidays on their calendar, she enlists the help of Bridget, her new mismatched bestie, and the re

• 07:05

FANTASTIC GYMNASTICS CHALLENGE!!! Loser Gets Bean Boozled!

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Click here to see more Challenges, Dares & Extreme Stunts!: https://www.youtube.com/watch?v=MZnx9MU3T1c&list=PL7TV22RuQ4DZrcNjQON5PJcrWKiZ9lLzH PIE FACE SHOWDOWN!: https://youtu.be/Ic-ZiFXPDL0 EAT IT OR WEAR IT CHALLENGE: https://youtu.be/thgsJhb8ir8 SMOO

• 07:32

Musket Firing (slow Motion) - Periodic Table Of Videos

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Firing a (very old) musket and filming with a (very new) high-speed camera. With thanks to Jim Gamble. Also discussed by Professor Martyn Poliakoff. Ebay auction has ended. Music courtesy of Henrik 'Appe' Johansson. More chemistry at http://www.periodicvi

• 02:01

♪ Why Are Dogs "Man's Best Friend"? | EVERY SINGLE THING

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Dogs are definitely 'man's best friend', but why?? How did dogs become our closest pet friends?? LYRICS: They’re in our homes, they’re on the bed. They’re mixed, or fixed, or purist bred. They’re cute, they’re strong, and past widespread. What lead to the

• 16:22

15 CREATIVE HACKS ON HOW TO DECORATE YOUR HOME

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DECORATING YOUR HOME FOR CHRISTMAS Is it difficult to decorate a whole house? Well, definitely, it's not an easy task. It becomes even more difficult when we have to stay on budget without spending a lot of mney. Ok, where there's economy, there's gonna b

• 10:21

12 EASY CRAFTS WITH RIBBONS

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LOVELY RIBBON IDEAS FOR KIDS A ribbon can make anything look nicer – from a box with a present up to a girl's hairstyle or lovely accessories. You can make a lot of cool crafts using ribbons, and we are here to help you with that. In this tutorial video,

• 06:30

Primitive Technology: Adobe wall (dry stacked)

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Primitive Technology: Adobe wall (dry stacked) - Building an adobe wall from scratch. Get my new book: http://hyperurl.co/PrimitiveTechnology | Subscribe: http://bit.ly/subPT My hut burned down, so I built a new one: https://youtube.com/watch?v=YmFTK-rnzf

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