Veritasium
What happens to these balloons when you open the valve?
- Title
- What happens to these balloons when you open the valve?
- Runtime
- 1:34
- Date posted
- 3 days ago
- Description
- Take a balloon and fill it with lots of air. Take another one and fill it with less air. Now connect the two via a valve.
What do you think will happen when you open the valve?
- Title
- The Insane Real Engineering of the Nazi Enigma Machine
- Runtime
- 47:42
- Date posted
- 6 days ago
- Description
- How was the "unbreakable" enigma cracked? Sponsored by Incogni - use code veritasium at https://incogni.com/veritasium to get an exclusive 60% off your annual subscription.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
For the latest science news, and for an exclusive bonus Q&A with the director of this video, sign up to the Veritasium newsletter - https://ve42.co/Newsletter
For early access to work in progress videos join our patreon https://ve42.co/VePatreon
▀▀▀
0:00 Who invented Enigma?
4:16 How did Enigma work?
10:51 The Secret Spy Mansion
13:10 The First Codebreakers Who Broke Enigma
16:45 Trying To Decrypt An Enigma Message
22:35 Who was Alan Turing?
26:30 How Enigma’s Flaws Were Exploited
34:27 Breaking Enigma - The Bombe
41:39 The Naval Enigma
44:35 What...
- Title
- Heating A Ball Just By Squeezing It
- Runtime
- 1:06
- Date posted
- 9 days ago
- Description
- How Jupiter heats its moon, just be stretching and squeezing it.
- Title
- The Scariest Chart In Engineering
- Runtime
- 1:11
- Date posted
- 17 days ago
- Description
- Why is the Smith Chart one of the scariest charts in electrical engineering?
We printed the largest one in the world to explain how it works and why it's so terrifying (to engineers at least).
- Title
- The Most Dangerous Escalator In Europe
- Runtime
- 1:17
- Date posted
- 21 days ago
- Description
- In 2018 football fans were leaving a stadium in Rome. They boarded an escalator down to the metro. Suddenly the machine sprung a fault.
Multiple safety systems were triggered. One after another. And then the final line failed.
This is why.
- Title
- A Physics Professor Bet Me $10,000 I'm Wrong...
- Runtime
- 1:31
- Date posted
- 25 days ago
- Description
- A UCLA Physics Professor bet me $10,000 that my video (https://youtu.be/jyQwgBAaBag) about going downwind faster than the wind was wrong.
Here's how we proved it...
- Title
- We Took $10,000 From @mkbhd's Locked iPhone
- Runtime
- 0:49
- Date posted
- 1 month ago
- Description
- There's a flaw in some virtual wallets.
We exploited this flaw to steal $10,000 from @mkbhd.
Watch the full video to find out how we did it...
- Title
- It's impossible to choose a number at random
- Runtime
- 1:41
- Date posted
- 1 month ago
- Description
- In math you can't truly pick things at random because formulas always give the same result.
So if we can't pick randomly, how do we select anything in math?
- Title
- Could identical twins commit the perfect crime?
- Runtime
- 1:08
- Date posted
- 1 month ago
- Description
- The DNA in twins is (almost) exactly the same.
So how could a team of forensic scientists tell which twin committed the crime?
There is a way but it has some issues...
- Title
- We sent a camera to space to film the solar eclipse
- Runtime
- 22:45
- Date posted
- 1 month ago
- Description
- What does an eclipse look like from the edge of space? We travelled to Spain for the 2026 total solar eclipse to find out. Sponsored by 80,000 Hours - Head to http://80000hours.org/veritasium to start planning a career that can help change the world for the better. By joining their newsletter, you’ll get a free copy of their in-depth career guide sent to your inbox.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
To be in with a chance of getting a NASA sticker that went to the edge of space during the eclipse and for early access to work-in-progress videos, join our Patreon https://ve42.co/VePatreon
Last year, we launched Elements of Truth on Kickstarter and were thrilled by the response. We’re now in the final stages of production, wit...
- Title
- How do submarines know where they are?
- Runtime
- 1:31
- Date posted
- 2 months ago
- Description
- How does a submarine find its way 600m deep in the ocean?
Surfacing is obviously the easiest way but not when you want to stay hidden.
So how do a crew balance concealment and pathfinding?
- Title
- Is spider web really stronger than steel?
- Runtime
- 26:58
- Date posted
- 2 months ago
- Description
- Can you really swing from spider silk? Sponsored by Henson Shaving - Head to https://hensonshaving.com/veritasium and use code “veritasium” for 100 free blades with any razor purchase. Just add both the razor and blades to your cart.
Last year, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. Pre-order the retail edition here: https://ve42.co/YTSpiderSilk
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
For weekly science news, and an exclusive Q&A where writer/director Vibhor Pandey discusses the making of this video, sign up to the Veritasium newsletter - https://ve42.co/Newsletter
For early access to work-in-progress videos, join our Patreon - https://ve42.co/VePatreon
▀▀▀
00:0...
- Title
- The World's Heaviest Weight
- Runtime
- 1:00
- Date posted
- 2 months ago
- Description
- How do you measure big forces accurately?
By calibrating your force transducer on the world's biggest weight - 1,000,000 pounds of force.
This machine ensures planes don't break apart, jets provide required thrust, and rockets make it to their destination.
- Title
- Why does every mammal get 1 billion heartbeats in their life?
- Runtime
- 35:32
- Date posted
- 2 months ago
- Description
- The hidden math that governs life. Sponsored by Brilliant - Try Brilliant for free, plus get 20% off an annual Premium subscription at https://brilliant.org/veritasium
Last year, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. Pre-order the retail edition here: https://elementsoftruth.game/
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
For weekly science news, and an exclusive Q&A where writer/director Daniel Leonard discusses the making of this video, sign up to the Veritasium newsletter - https://ve42.co/Newsletter
For early access to work in progress videos join our Patreon - https://ve42.co/VePatreon
▀▀▀
0:00 How much LSD should you give an elephant?
3:09 Metabolic Rate...
- Title
- The Most Controversial Thought Experiment In Physics
- Runtime
- 1:43
- Date posted
- 2 months ago
- Description
- Put a cat in a box with a radioactive atom. Add a radiation detector that triggers the release of poisonous cyanide gas.
Schrödinger's thought experiment was supposed to be a criticism of quantum mechanics and is now one of it's best explainers.
Here's why and what happens to the cat...
- Title
- Why Waves Travel Faster At The Top
- Runtime
- 1:58
- Date posted
- 2 months ago
- Description
- Why do objects travel with waves?
We're taught waves only transfer energy, not material, but objects wash ashore all the time.
How does this work?
#veritasium #science #physics
- Title
- The Scariest Chart in Electrical Engineering
- Runtime
- 39:44
- Date posted
- 2 months ago
- Description
- Why is the Smith Chart one of the scariest charts in electrical engineering? Sponsored by Incogni - use code veritasium at https://incogni.com/veritasium to get an exclusive 60% off your annual subscription.
Last year, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. Pre-order the retail edition here: https://elementsoftruth.game/
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
For weekly science news, and an exclusive Q&A where Writer/Director Henry discusses the making of this video, sign up to the Veritasium newsletter - https://ve42.co/Newsletter
For early access to work in progress videos join our Patreon https://ve42.co/VePatreon
▀▀▀
0:00 The Scariest Chart In Engineering
- Title
- The Google Interview Question Everyone Gets Wrong
- Runtime
- 1:00
- Date posted
- 3 months ago
- Description
- The blender problem. Do you think you know the answer? Comment below!
- Title
- How does light 'know' the shortest path?
- Runtime
- 1:16
- Date posted
- 3 months ago
- Description
- Light is the fastest thing in the universe.
In order to be this fast it always needs to take the shortest path (as it's speed cannot change).
So how does it always know what the shortest path is?
- Title
- AD - Why are plants colder than their surroundings?
- Runtime
- 2:40
- Date posted
- 3 months ago
- Description
- Plants can stay cooler than the air around them, even in full sun. How is that possible? We partnered with Anker to find out…
Pick up your Anker Prime Charger here:
https://ankerfast.club/noagy5
#AnkerTech #Anker #AnkerPrime
- Title
- AD - Why do I get this spark when I unplug my hair dryer?
- Runtime
- 2:22
- Date posted
- 3 months ago
- Description
- Why does a charger sometimes spark when you unplug it, even when it's switched off at the wall? We partnered with Anker to find out…
Pick up your Anker Prime Charger here:
https://ankerfast.club/noagy5
#AnkerTech #Anker #AnkerPrime
- Title
- Why do these metronomes sync up?
- Runtime
- 1:13
- Date posted
- 3 months ago
- Description
- Watch what happens when you start a metronome ticking on an unstable platform, out of sync with two others.
Slowly over time, they all sync up.
How does this happen?
- Title
- We've Been Using The Wrong Science In Court For 50 years
- Runtime
- 23:22
- Date posted
- 3 months ago
- Description
- How accurate is modern forensics? Sponsored by Saily - Get an exclusive 15% discount on Saily data plans! Use code veritasium at checkout. Download the Saily app or go to https://saily.com/veritasium
Last year, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. If you missed the campaign, you can now pre-order the retail edition through our new website here - https://ve42.co/ForensicsDes
If you backed us on Kickstarter, don’t worry, your game will ship before any pre-orders are fulfilled.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
For the latest science news, and for an exclusive bonus Q&A with the director of this video, sign up to the Veritasium newsletter - https://ve42.co/Newsletter
Fo...
- Title
- This tiny magnetic blob could change how we treat brain tumors forever...
- Runtime
- 0:42
- Date posted
- 3 months ago
- Description
- Scientists have developed a new way to provide treatment for brain tumours.
Currently we use chemotherapy, but that's like throwing a grenade at a mosquito, you end up damaging a lot more than you mean to.
This magnetic blob will help change that.
References:
Microrobots: https://www.science.org/stoken/author-tokens/ST-3054/full
https://www.nature.com/articles/d41586-025-03754-6
https://www.washingtonpost.com/science/2025/11/19/robot-drugs-side-effects-magnets/
Catheters: https://www.science.org/doi/full/10.1126/scirobotics.adh0298
Telesurgery: https://www.science.org/doi/10.1126/scirobotics.ado3187
https://www.science.org/doi/full/10.1126/scirobotics.adq0192
Electromagnetic Navigation Systems: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202310701
Magnetic Levitation: https://www.youtube.com/watch?v=WT8129liuQc
- Title
- We're 99.9% sure this pattern is true, but no one can prove it
- Runtime
- 41:30
- Date posted
- 4 months ago
- Description
- Do twin primes go on forever? Sponsored by Brilliant - Head to https://brilliant.org/veritasium to try Brilliant’s tutor for free, plus receive 20% off an annual Premium subscription
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
For early access to work in progress videos join our patreon https://ve42.co/VePatreon
▀▀▀
A huge thank you to Alex Kontorovich, Andrew Granville, James Maynard, Roger Heath-Brown, Dimitris Koukoulopoulos, Debmalya Basak & George Shakan for their invaluable expertise and contributions to this video!
▀▀▀
0:00 What are twin primes?
3:08 How To Find Prime Numbers
6:11 The Sieve of Eratosthenes
11:26 The Closest We’ve Come To Proving Twin Primes
...
- Title
- Zippers are stronger than you think...
- Runtime
- 1:05
- Date posted
- 4 months ago
- Description
- How do zippers work?
We made a giant one to find out!
- Title
- How A Random System Can Actually Be Predictable
- Runtime
- 1:50
- Date posted
- 4 months ago
- Description
- The balls in a Galton board fall down randomly. Any time they come to a junction they can take any number of paths and it's almost impossible to accurately predict every ball's trajectory.
However, the system as a whole is predictable.
How can this be? How can random systems actually be predictable?
- Title
- AD - How do cities control traffic? We partnered with Anker to find out…
- Runtime
- 1:19
- Date posted
- 4 months ago
- Description
- How does a traffic light know when a car is there?
Pick up your Anker Prime Charger here:
https://ankerfast.club/noagy5
#AnkerTech #Anker #AnkerPrime
- Title
- Something is jamming GPS over Europe. Here's what we found
- Runtime
- 34:17
- Date posted
- 4 months ago
- Description
- Something is disrupting GPS signals across Europe. Sponsored by Ground News. Go to https://ground.news/Ve for 40% off the unlimited Vantage plan.
In 2025, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. If you missed the campaign, you can now pre-order the retail edition through our new website here - https://ve42.co/GPSJam
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
0:00 What is jamming Europe’s GPS?
4:43 How does GPS work?
10:46 How easy is it to jam GPS?
12:18 The Hunt To Find The Jammer
17:12 Who are the possible culprits?
20:06 The Investigation Goes Public
- Title
- Google Maps is unreasonably fast. Let me explain
- Runtime
- 29:54
- Date posted
- 4 months ago
- Description
- The math behind Google Maps. Sponsored by boot.dev - Click this link https://boot.dev/?promo=VERITASIUM and use our code VERITASIUM to get 25% off your first payment for boot.dev.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
For those curious about the path-count estimate: we estimated the non-backtracking paths NYC→SF, using a sparse spatial network model with mean degree ≈ 2.5 and characteristic length ≈ √N.
▀▀▀
0:00 What is a ‘shortest path algorithm’?
3:30 Dijkstra’s 20 Minute Algorithm
6:30 The First Route Planner
10:31 A* Search Algorithm
12:40 Shortest Doesn’t Mean Fastest
15:08 Road Network Hierarchy
18:29 Mapping North America - Nested Dissection
25:17 How do ...
- Title
- How An Infinite Hotel Ran Out Of Room
- Runtime
- 2:40
- Date posted
- 4 months ago
- Description
- If there's a hotel with infinite rooms, could it ever be completely full?
Could you run out of space to put everyone?
The surprising answer is yes -- this is important to know if you're the manager of the Hilbert Hotel.
- Title
- Can you solve the hat riddle?
- Runtime
- 1:14
- Date posted
- 4 months ago
- Description
- You and 3 amigos are buried neck deep in sand in a prison yard.
The guard says if one of you can guess your own hat colour you can all go free. You know there are two black hats and two white hats and you can only see the hats of the people in front of you.
A minute passes in silence and then one of you shouts out a correct answer.
Who shouted?
A, B, C or D?
- Title
- How many batteries would it take to power a human?
- Runtime
- 1:45
- Date posted
- 4 months ago
- Description
- AD How many batteries would it take to power a human? We partnered with @AnkerCharging to find out...
Pick up your Anker Prime power bank here: https://ankerfast.club/noagy5
#AnkerTech #Anker #AnkerPrime #Veritasium #Tech
- Title
- How Alpha Particles Can Break Computer Chips
- Runtime
- 2:07
- Date posted
- 5 months ago
- Description
- In the 1970s, Intel couldn't work out what was damaging the DRAM on their microchips.
The cause turned out to be the ceramic that the chip was encased in. It was secretly flipping 1s to 0s.
But how?
- Title
- The Surprising Genius Of Sewing Machines
- Runtime
- 1:13
- Date posted
- 5 months ago
- Description
- How does a sewing machine work?
The answer is more genius than you might think.
- Title
- The CIA's new tech doesn't make sense
- Runtime
- 21:18
- Date posted
- 5 months ago
- Description
- Is the CIA’s Ghost Murmur technology real? Sponsored by Ground News. Go to https://ground.news/Ve for 40% off the unlimited Vantage plan.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
A huge thanks to Patrick Maletinsky at the University of Basel and Jan Jeske at the Fraunhofer Institute for their insights into NV magnetometry.
Likewise, thank you to Brad Roth at Oakland University, John Wikswo at Vanderbilt University, and Bob Fagaly at the IEEE for their input on the history and constraints of magnetometry.
Thank you to Douglas London, CIA Senior Operations Officer (Rtd), for his input on the story. His book, The Recruiter, can be found here - https://ve42.co/Recruiter
A big thanks to Herbert ...
- Title
- The Crystal That Could Destroy All Medicine
- Runtime
- 33:25
- Date posted
- 5 months ago
- Description
- The crystals that wiped out an HIV medication, almost overnight. Thanks to SoFi for sponsoring the video! Click here to sign-up for SoFi Checking and Savings: https://sofi.com/ve
In 2025, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. If you missed the campaign, you can now pre-order the retail edition through our new website here -https://ve42.co/PolymorphsDesc
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
Check out the excellent video by Reactions here: https://youtu.be/PccOwGEbtQU?si=NOpmaulDcoq6Kif-
This video was a huge collaborative effort!
Special thanks to...
- Title
- Wombats Poop Cubes
- Runtime
- 0:46
- Date posted
- 5 months ago
- Description
- Wombat feces are surprisingly... cube shaped.
They are the only known animal to produce this kind of poop leading scientists to work out this strange phenomenon.
- Title
- Why don't trains make *that* sound anymore?
- Runtime
- 1:03
- Date posted
- 5 months ago
- Description
- If you've been on a modern train you won't have noticed that classic "clickety-clack" sound anymore. This is because train tracks are now one continuous piece of rail without gaps.
But one long piece of metal without room to expand when hot is dangerous.
Thus, engineers had to come up with an ingenious solution involving... jagged rocks?
- Title
- The Most Radioactive Place On Earth
- Runtime
- 1:33
- Date posted
- 5 months ago
- Description
- Where comes to mind when you think of radioactivity?
Chernobyl? Hiroshima? A banana?
The most radioactive place isn't actually where you think...
- Title
- How easy is it to steal $10,000 from a locked phone?
- Runtime
- 25:44
- Date posted
- 6 months ago
- Description
- How we hacked MKBHD! Sponsored by Incogni - Use code veritasium at https://incogni.com/veritasium to get an exclusive 60% off.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
0:00 Stealing $10,000 From MKBHD
4:04 How The Hack Works
8:29 High Value vs Low Value Transactions
10:18 Tricking The Card Reader
14:20 Transit Mode
15:22 Why does this hack only work with Visa?
17:10 How does RSA encryption work?
20:13 How can you prevent this hack?
21:59 What are Visa doing about it?
▀▀▀
A huge thank you to professors Ioana Boureanu from the University of Surrey and Tom Chothia from the University of Birmingham, for supporting us with the execution and the explanation of th...
- Title
- Can something go faster than it’s pushed?
- Runtime
- 1:02
- Date posted
- 6 months ago
- Description
- A UCLA Physics Professor bet Derek $10,000 that his video about going downwind faster than the wind was wrong.
Here's a demonstration you can do at home to see why something can move faster than the force pushing it.
- Title
- What happens if you drop 0.125 grams of antimatter?
- Runtime
- 58:54
- Date posted
- 6 months ago
- Description
- The factory that makes the world's most volatile substance. Sponsored by SoFi - Join SoFi Plus today and get more for your money! Visit https://sofi.com/veritasium
In 2025, we launched the Elements of Truth game on Kickstarter and were thrilled by the response. We’re now in the final stages of production, with Kickstarter rewards shipping soon. If you missed the campaign, you can now pre-order the retail edition through our new website here -https://ve42.co/AntimatterDesc
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
0:00 The Problem Of Antimatter Storage
2:18 What is particle annihilation?
6:13 The Matter-Antimatter Asymmetry
12:44 CPT Symmetry
16:28 The Wu Experiment
22:13 The Antimatter...
- Title
- The Bizarre Behaviour Of Rotating Bodies
- Runtime
- 1:33
- Date posted
- 6 months ago
- Description
- What you are looking at is known as the Dzhanibekov effect or the tennis racket theorem or the intermediate axis theorem.
It involves arguably the best mathematician alive, Soviet era secrets, and the end of the world.
So in 1985, cosmonaut Vladimir Dzhanibekov was tasked with saving the Soviet space station Salyut 7 which had completely shut down. The mission was so dramatic that the Russians made a movie out of it in 2017 and after rescuing the space station, Dzhanibekov unpacked supplies sent up from Earth which were locked down with a wing-nut and as the wing-nut spun off the bolt, he noticed something strange:
The wing-nut maintained its orientation for a short time, and then it flipped, 180 degrees. And as he kept watching, it flipped back a few seconds later and it continued flipping back and forth at regular intervals.
This motion wasn’t caused by forces or torques applied to the wing-nut: there were none. And yet it kept fl...
- Title
- The Secret Spy Tech Inside Every Credit Card
- Runtime
- 28:43
- Date posted
- 6 months ago
- Description
- How safe are the cards we use? Sponsored by Saily - Prepare for your next destination today! Download the Saily app now or go to https://saily.com/veritasium and use code ‘veritasium’ for 15% off. Share your referral code with friends and family to collect more credit for your next trip.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
0:00 Dissolving A Card In Acetone
1:32 The Soviets’ Powerless Bug
6:24 The First Credit Card
8:21 Magnetic Stripe Credit Cards
11:51 How To Clone A Credit Card
13:50 Chip and Pin
18:03 Operation Easy Chair
19:58 How does a contactless card work?
23:39 Digital Pickpocketing
▀▀▀
We’d love to thank some of the experts who helpe...
- Title
- How Pressure Can Come From *Nothing*
- Runtime
- 1:15
- Date posted
- 6 months ago
- Description
- If you went to the emptiest part of the universe and took 2 uncharged objects with you, something really strange happens...
They snap together almost by magic!
This is called the Casimir Effect and the explanation is still an ongoing debate in physics!
- Title
- We Made A Giant Zipper To Explain How It Works
- Runtime
- 20:45
- Date posted
- 6 months ago
- Description
- How do zippers work? Sponsored by Hostinger. Host OpenClaw on a Hostinger VPS plan: https://www.hostinger.com/veritasiumopenclaw - and use code 'veritasium' for an extra discount.
If you’re looking for a molecular modelling kit, try Snatoms, a kit I invented where the atoms snap together magnetically - https://ve42.co/SnatomsV
Sign up for the Veritasium newsletter for weekly science updates - https://ve42.co/Newsletter
▀▀▀
A huge thank you to Prof. Robert Friedel for his invaluable expertise and contributions to this video.
Check out Friedel’s book here - http://ve42.co/friedel-zipper
Massive thanks to IPFL for fabricating our giant zipper - https://ve42.co/ipfl-fabrication
A huge thank you to Emily Zhang for her advice on how to best structure this story. Check out her new channel here: @rabbithole
The giant zipper was adapted from an original design by LoboCNC - https://ve42...
- Title
- The Shadow Illusion
- Runtime
- 0:58
- Date posted
- 7 months ago
- Description
- Cut any shape hole into a piece of cardboard and hold it up to the sunlight.
When sunlight shines through this hole, it casts a circular image on the wall regardless of the shape of the hole.
Why does this happen?
The size of the hole also doesn't affect the size of the image.
This counterintuitive demonstration shows that the hole is acting like a pinhole camera, producing an image of the sun on the wall. Therefore the size and shape of the hole have no effect on the size and shape of the image.
- Title
- This Paradox Splits Smart People 50/50
- Runtime
- 25:40
- Date posted
- 7 months ago
- Description
- Two boxes, one choice, and $1,000,000. Sponsored by Brilliant - To learn for free on Brilliant for a full 30 days, go to https://brilliant.org/veritasium. Our viewers also get 20% off an annual Premium subscription, which gives you unlimited daily access to everything on Brilliant.
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A huge thank you to Dr. Arif Ahmed, Dr. Adam Elga, Dr. Kenny Easwaran, Dr. Peter Slezak, D...
- Title
- You Can't Feel Wet
- Runtime
- 0:54
- Date posted
- 7 months ago
- Description
- Put on a glove and dip your hand into icy water. You'll notice it still feels wet?
But the glove is waterproof, how does this work?
That's because wet isn't a feeling, we use other sensory information to feel water...
