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  • 03:43 The Science Of HIV/AIDS

    The Science Of HIV/AIDS

    549 views / 1 likes - added

    What is it, and are we close to a cure? SHARE on Twitter: http://bit.ly/1NalHm8 & Facebook: http://on.fb.me/1MTLpMp Get a FREE Audible Trial: http://audible.com/asap Written by Rachel Salt, Mitchell Moffit and Gregory Brown SUBSCRIBE for more (it's free!)

  • 03:59 Popular 3 Odd Facts About Ostriches

    3 Odd Facts About Ostriches

    916 views / 0 likes - added

    Don't bury your head in the sand for this one. We've got some odd ostrich facts for you! Hosted by: Hank Green ---------- Dooblydoo thanks go to the following Patreon supporters -- we couldn't make SciShow without them! Shout out to Justin Ove, Chris Pete

  • 04:38 Popular Why Can’t Some Birds Fly?

    Why Can’t Some Birds Fly?

    1,164 views / 3 likes - added

    Birds like chickens, penguins and ostriches can’t fly, but it turns they were once able to. How did they lose this ability? Sign Up For The TestTube Newsletter Here ►►►► http://bit.ly/1myXbFG How Did Dinosaurs Evolve Into Birds? ►►►► http://bit.ly/1nUKzZz

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  • 04:31 Popular Do Video Games Make You Smarter?

    Do Video Games Make You Smarter?

    749 views / 2 likes - added

    We've all been told that playing video games can distract you from school but is this true? Do video games affect academic performance? How Video Games Change Your Brain - http://bit.ly/2aOpUnc Sign Up For The Seeker Newsletter Here - http://bit.ly/1UO1Px

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  • 02:51 Popular The Horse Horseshoe Boots Viral Algebra Problem - The Correct Answer Explained

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

    1,707 views / 2 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:

  • 02:06 Popular Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

    Can You Solve The Viral Matchstick Puzzle 6 + 4 = 4?

    3,445 views / 0 likes - added

    Can you fix 6 + 4 = 4 by moving 1 matchstick? This problem has gone viral on Facebook, with one post having over 400,000 shares. The ground rules are you cannot break a stick, it should be an equality (=), and you have to use 7-segment numbers (the block

  • 11:27 Popular Can You Solve The Viral 11x11 = 4 Puzzle? The Correct Answer Explained

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

    3,032 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

  • 07:39 Popular Can You Solve The Alien Extinction Riddle? Hard Job Interview Question

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

    853 views / 0 likes - added

    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

  • 11:57 The Wallis Formula For π

    The Wallis Formula For π

    578 views / 0 likes - added

    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

  • 07:40 Popular Can You Solve The 21 Flags Game From Survivor?

    Can You Solve The 21 Flags Game From Survivor?

    874 views / 1 likes - added

    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

  • 05:57 Popular Can You Solve This 6th Grade Geometry Problem From Singapore? The Area Of A "Claw"

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

    1,113 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

  • 03:48 Popular Can You Solve This Harvard Admissions Question? Algebra Problem, 1869

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

    1,439 views / 0 likes - added

    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

  • 03:54 Popular What's The Best Soup Can Size? The Optimal Cylinder Puzzle

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

    783 views / 0 likes - added

    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

  • 07:47 Popular Can You Solve The Probability The Newborn Is A Boy? Many Fail This Interview Question

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

    814 views / 0 likes - added

    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

  • 02:45 The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

    The Day After Tomorrow Is Yesterday Riddle. Can You Solve It?

    686 views / 0 likes - added

    This puzzle is popular on Facebook and many other sites. "When the day after tomorrow is yesterday, then today will be as far from Wednesday as today was from Wednesday when the day before yesterday was tomorrow. What day is today?" Can you solve this tri

  • 09:11 Popular Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

    Can You Solve The Rectangle Ratio Puzzle? The Surprising Answer

    834 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

  • 04:30 Popular Adults Are Arguing About This 3rd Grade Math Problem

    Adults Are Arguing About This 3rd Grade Math Problem

    881 views / 0 likes - added

    "If Sue runs around the track twice, and John runs around the track four times more than Sue, how many times does John run around the track?" This problem was given to 3rd graders. A parent disagreed with the answer the teacher was marking. After it was p

  • 07:49 Popular Can You Solve The Viral 9 = 72 Puzzle? The Correct Answer Explained

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

    1,055 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

  • 04:13 Popular Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

    Can You Solve This Grade 12 Geometry Problem From Australia? The Marshmallow Chocolate Puzzle

    886 views / 0 likes - added

    A marshmallow has the shape of a cylinder with diameter 5 and height 3. A dessert is made with 24 marshmallows: there are two stacked layers of marshmallows, and each layer has 3 rows of 4 marshmallows. The gaps between the marshmallows are filled with ch

  • 05:27 Popular Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

    Can You Solve The Mind-Bending Self-Counting Sentence Riddle?

    939 views / 0 likes - added

    "In this sentence, the number of occurrences of the digit 0 is __, of the digit 1 is __, of the digit 2 is __, of the digit 3 is __, of the digit 4 is __, of the digit 5 is __, of the digit 6 is __, of the digit 7 is __, of the digit 8 is __, and of the d

  • 06:18 Popular Can You Solve The Diluted Wine Puzzle?

    Can You Solve The Diluted Wine Puzzle?

    750 views / 1 likes - added

    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

  • 06:24 Can You Solve The Missing Sock Puzzle?

    Can You Solve The Missing Sock Puzzle?

    608 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

  • 03:16 Popular Can You Solve This 8th Grade Geometry Problem? 75% Got The Wrong Answer

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

    986 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.

  • 03:51 Popular Can You Solve This MIT Admissions Question? Geometry Problem, 1869

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

    919 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

  • 06:30 Popular The Invention Nobody Wanted That Became One of the Top Selling Office Products of All Time

    The Invention Nobody Wanted That Became One of the Top Selling Office Products of All Time

    1,054 views / 0 likes - added

    →Subscribe for new videos every day! https://www.youtube.com/user/TodayIFoundOut?sub_confirmation=1 →How "Dick" came to be short for 'Richard': https://youtu.be/BH1NAwwKtcg?list=PLR0XuDegDqP2Acy6g9Ta7hzC0Rr3RDS6q Never run out of things to say at the wate

  • 13:07 Popular Monsanto: The Company that Owns the World’s Food Supply

    Monsanto: The Company that Owns the World’s Food Supply

    977 views / 0 likes - added

    Support us on Patreon to vote on which company we do next: https://www.patreon.com/business_casual Join us at our subreddit and on social media: Reddit: https://reddit.com/r/businesscasual Facebook: https://www.facebook.com/business.casual.yt Twitter: htt

  • 09:31 Why is Friday the 13th Considered Unlucky?

    Why is Friday the 13th Considered Unlucky?

    522 views / 1 likes - added

    Try TunnelBear: http://tunnelbear.com/brainfood 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 t

  • 03:00 Multiply Numbers By Drawing Lines

    Multiply Numbers By Drawing Lines

    613 views / 0 likes - added

    Gow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s

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  • 04:15 How Could You Walk Through Walls?

    How Could You Walk Through Walls?

    479 views / 0 likes - added

    In sci-fi movies, superheroes can walk through walls. Why can’t we? Join Honey for FREE at: https://www.joinhoney.com/lifenoggin Thanks to Honey for sponsoring this video. Subscribe: https://bit.ly/SubLifeNoggin | Get your exclusive Life Noggin merch: htt

  • 04:14 Carbon Nanotubes Might Be the Secret Boost Solar Energy Has Been Looking For

    Carbon Nanotubes Might Be the Secret Boost Solar Energy Has Been Looking For

    453 views / 0 likes - added

    One of the greatest challenges facing solar technology is wasted heat, but carbon nanotubes might be the high efficiency boost that solar cells need to succeed. Subscribe to Seeker!http://bit.ly/subscribeseeker Watch more Elements! http://bit.ly/ElementsP

  • 04:23 If You Could See Every Satellite, What Would The Sky Look Like? 360/VR

    If You Could See Every Satellite, What Would The Sky Look Like? 360/VR

    384 views / 1 likes - added

    There are over ten thousand satellites in orbit, but only the largest ones in low earth orbit are visible in the hours just after sunset. What would the sky look like if you could see everything in space? I took satellite data and rendered a view of the n

  • 04:34 Popular Alan x Walkers - Unity | Sapphire (The Making of the Topline)

    Alan x Walkers - Unity | Sapphire (The Making of the Topline)

    884 views / 2 likes - added

    Alan x Walkers - Unity | Sapphire (The Making of the Topline)Feel so grateful to be a part of this incredible project - 'Unity' by Alan x Walkers. Here's a little video explaining how I created my part of the track (the topline). I literally locked myself

  • 09:00 This Particle Breaks Time Symmetry

    This Particle Breaks Time Symmetry

    263 views / 0 likes - added

    Increasing entropy is NOT the only process that's asymmetric in time.Check out the book: http://WeHaveNoIdea.comThis video was co-written by Daniel Whiteson and Jorge ChamYou can also check out PhD Comics: http://phdcomics.comSpecial thanks to Patreon sup

  • 10:35 How Quantum Mechanics Affects Your Life

    How Quantum Mechanics Affects Your Life

    248 views / 0 likes - added

    While you might not think about quantum mechanics being part of your everyday life, it turns out that it might play a role in some of the most familiar things, from the sunlight in the trees to the nose on your face!Hosted by: Stefan ChinSciShow has a spi

  • 05:57 The Very Long Time of the Dinosaurs! | History of Life! | SciShow Kids

    The Very Long Time of the Dinosaurs! | History of Life! | SciShow Kids

    329 views / 0 likes - added

    Dino stops by the Fort to learn all about dinosaurs with Jessi and Squeaks! Did you know that dinosaurs were on Earth for so long that not all dinosaurs lived at the same time?!Hosted by: Jessi Knudsen Castaeda----------Love SciShow Kids and want to help

  • 00:57 The Simplest Thing We Can't Prove #shorts

    The Simplest Thing We Can't Prove #shorts

    150 views / 0 likes - added

    Goldbach's Conjecture states that every even whole number greater than 2 is the sum of two prime numbers. So, 28 is 11 + 17... 62 is 43 + 19... and it goes up. WAY up. We've calculated every value up to 4 x 10^18, so it's got to be provable, right? WRONG.

  • 06:51 Studying Supernovas From the Bottom of the Ocean

    Studying Supernovas From the Bottom of the Ocean

    118 views / 0 likes - added

    Go to: https://thld.co/munkpack_scishow_0422 and use code SCISHOW to get 20% off your first purchase! Thanks to Munk Pack for sponsoring todays video!Stars blowing up is a surprisingly common occurrence, but who would have thought to search the bottom of

  • 10:16 Most Expensive Fails!

    Most Expensive Fails!

    367 views / 2 likes - added

    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

  • 09:50 Stable Video AI Watched 600,000,000 Videos!

    Stable Video AI Watched 600,000,000 Videos!

    33 views / 0 likes - added

    Check out Lambda here and sign up for their GPU Cloud: https://lambdalabs.com/papersStable Video Diffusion: https://stability.ai/news/stable-video-diffusion-open-ai-video-modelEmu video: https://emu-video.metademolab.com/Emu edit: https://emu-edit.metadem


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