Veritasium
Veritasium
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The Stickiest *Non-Sticky* Substance: Gecko-inspired adhesive
Adhesives based on gecko skin can hold huge weights - without sticking to anything. Head to brilliant.org/Veritasium to start your free trial. The first 200 of you will get 20% off Brilliant’s annual premium subscription.
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Thanks to Dr. Mark Cutkosky, Tony Chen, Amar Hajj-Ahmad, and the rest of the Biomimetics and Dexterous Manipulation Lab at Stanford University for showing us the power of gecko adhesives.
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References:
Russell, A. P., Stark, A. Y., & Higham, T. E. (2019). The integrative biology of gecko adhesion: historical review, current understanding, and grand challenges. Integrative and comparative biology, 59(1), 101-116. - ve42.co/Russell2019
Hajj-Ahmad, A., Suresh, S. A., and Cu...
zhlédnutí: 3 800 303

Video

3 Ways Of Seeing Invisible Air Flow
zhlédnutí 2,8MPřed měsícem
In this lab, they use different flow visualization techniques to help detect contraband, residues, and develop trace particle detection methods. Part of this video was sponsored by Caseta by Lutron. Find out more at casetawireless.com/veritasium ▀▀▀ Thanks to Rich Press and NIST for the great visit. Thanks to Matt Staymates for taking us around his lab and showing us the fascinating research be...
Testing the US Military’s Worst Idea
zhlédnutí 6MPřed měsícem
An engineer came up with a plan to drop tungsten telephone poles from space - the idea has been seriously considered on multiple occasions, so we tested it. Head to brilliant.org/Veritasium to start your free trial. The first 200 will get 20% off Brilliant's annual premium subscription. Massive thanks to Archisand for building such a beautiful sandcastle. www.youtube.com/@GregLeBon Huge thanks ...
How To Measure The Tiniest Forces In The Universe
zhlédnutí 3,6MPřed měsícem
This lab measures the tiniest forces in the universe. This video is sponsored by Brilliant. You can get started for free, or the first 200 people to sign up via brilliant.org/veritasium get 20% off a yearly subscription. ▀▀▀ Thanks to Rich Press and NIST for the great visit. Thanks to Dr. Gordon Shaw for showing us around his lab and teaching us about measuring tiny forces. You can check out al...
Inside The Navy's Indoor Ocean
zhlédnutí 15MPřed 2 měsíci
The US Navy has an indoor ocean that can simulate any wave in the world. This video is sponsored by Brilliant. You can get started for free, or the first 200 people to sign up via brilliant.org/veritasium get 20% off a yearly subscription. ▀▀▀ Thanks to Kelley Stirling and the Naval Surface Warfare Center, Carderock Division for the visit. Thanks to Miguel Quintero and Capt. Todd E. Hutchison f...
The world depends on a collection of strange items. They're not cheap
zhlédnutí 6MPřed 2 měsíci
This government warehouse keeps our entire society up to standard. Part of this video was sponsored by Google Domains. Take the first step to get online with a domain name from Google Domains - go to domains.google/veritasium to get 20% off your first year. #GoogleDomains ▀▀▀ Thanks to Rich Press and NIST for the great visit. Thanks to Dr. Steve Choquette, Dr. Ben Place, and Dr. Johanna Camara ...
What Happens If A Star Explodes Near The Earth?
zhlédnutí 3,7MPřed 2 měsíci
People have witnessed supernovae for millennia, but what threat do they pose to life on Earth? This video is sponsored by Brilliant. You can get started for free, or the first 200 people to sign up via brilliant.org/veritasium get 20% off a yearly subscription. ▀▀▀ A massive thanks to Prof. Hans-Thomas Janka for helping us with the physics of supernovae and GRBs. A massive thanks to Prof. Brian...
The Remarkable Story Behind The Most Important Algorithm Of All Time
zhlédnutí 5MPřed 2 měsíci
The Fast Fourier Transform is used everywhere but it has a fascinating origin story that could have ended the nuclear arms race. This video is sponsored by 80,000 Hours. Head to 80000hours.org/veritasium to sign up for their newsletter and get sent a free copy of their in-depth career guide. A huge thank you to Dr. Richard Garwin for taking the time to speak with us. Thanks to Dr. Steve Brunton...
How Dangerous is a Penny Dropped From a Skyscraper?
zhlédnutí 13MPřed 4 měsíci
This video is sponsored by Brilliant. You can get started for free, or the first 200 people to sign up via brilliant.org/veritasium get 20% off a yearly subscription. Check out Adam Savage's video: chclip.net/video/h_zytOcMwys/video.html A massive thanks to Adam Savage and the whole Tested Crew - especially Kristen Lomasney, Ryan Kiser, and Joey Fameli. Thank you so much for coming out to the d...
World's Highest Jumping Robot
zhlédnutí 9MPřed 5 měsíci
World's Highest Jumping Robot
The 4 things it takes to be an expert
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The 4 things it takes to be an expert
The Riddle That Seems Impossible Even If You Know The Answer
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The Riddle That Seems Impossible Even If You Know The Answer
The Absurd Search For Dark Matter
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The Absurd Search For Dark Matter
How did they actually take this picture? (Very Long Baseline Interferometry)
zhlédnutí 4,7MPřed 8 měsíci
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How Electricity Actually Works
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The Man Who Accidentally Killed The Most People In History
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How Horses Save Humans From Snakebites
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Future Computers Will Be Radically Different (Analog Computing)
zhlédnutí 9MPřed 11 měsíci
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The Most Powerful Computers You've Never Heard Of
zhlédnutí 9MPřed rokem
The Most Powerful Computers You've Never Heard Of
Why are snowflakes like this?
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Most People Don't Know How Bikes Work
zhlédnutí 19MPřed rokem
Most People Don't Know How Bikes Work
The Big Misconception About Electricity
zhlédnutí 18MPřed rokem
The Big Misconception About Electricity
How Imaginary Numbers Were Invented
zhlédnutí 14MPřed rokem
How Imaginary Numbers Were Invented
I Rented A Helicopter To Settle A Physics Debate
zhlédnutí 7MPřed rokem
I Rented A Helicopter To Settle A Physics Debate
A Robot That Walks, Flies, Skateboards, Slacklines
zhlédnutí 3,7MPřed rokem
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Why Scorpions Glow in the Dark
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The Universe is Hostile to Computers
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The Universe is Hostile to Computers

Komentáře

  • Zakalwe
    Zakalwe Před 13 hodinami

    oh my God...I'M A CYLON!!!!

  • James Carter
    James Carter Před 13 hodinami

    If only someone could figure out a way to launch things cheaper and faster than anyone else.🙂

  • The Knightikins
    The Knightikins Před 13 hodinami

    So how should we get the copter on the ground? I don’t know, put some firecrackers on there and see what happens.

  • Gh0stie
    Gh0stie Před 13 hodinami

    a cylinder falling on its side is pretty obvious, afterall, its a curved surface versus a flat surface, obviously its gonna try to shift to the curve

  • MightyRob1
    MightyRob1 Před 13 hodinami

    What if the circuit, instead of a loop one meter apart was a loop around the equator of the earth? My question is would this change the field of one wire affecting the other one (as shown in the simulations)?

  • James Carter
    James Carter Před 13 hodinami

    What if you say deployed say like somewhere between 12,000 or possibly 42,000 satellites in LEO with each having multiple “rods” and were networked together for high speed communications. Would that make this work?😃

  • Sold
    Sold Před 14 hodinami

    This stuff is super cool. I think in the near future there will be robots climbing buildings faster than a human can run horizontally using this stuff. This needs to be worked on more, I could see this being the future of heavy machinery too.

  • Patarawarin Lumjiak
    Patarawarin Lumjiak Před 14 hodinami

    Plot twist: The left one is shorter then the right

  • Angel
    Angel Před 14 hodinami

    So there’s a thing called gravity…

  • John Niederreiter
    John Niederreiter Před 14 hodinami

    Great video!

  • Tomm Smith
    Tomm Smith Před 14 hodinami

    What do you think amps due at load? Voltage = The Vessel Amps = The Cargo If The Vessel makes its delivery destination and drops The Cargo, how would The Vessel return home?

  • Rory Simpson
    Rory Simpson Před 14 hodinami

    You forgot the US Joint Forces secret ingredient, a $950B+ annual budget. You didnt fail, you were underfunded.

  • Alt-Key Here
    Alt-Key Here Před 14 hodinami

    The cat would be dead after a few days due to starvation. Ether that, or the cat would break the box.

  • Le Gifter
    Le Gifter Před 14 hodinami

    Left, creating friction accelarates speed

  • Bonjook
    Bonjook Před 14 hodinami

    I want a NIST carton of cigs

  • Bjorn Wolf
    Bjorn Wolf Před 14 hodinami

    Before watching the video I believe it to be evolution, snakes in Canada only exist for 5 months of the year due to extreme cold. Snakes in warmer places have existed more than twice as long as ours and have developed more killing weapons. Same with our spiders, only out for 4 -5 months of a year.

  • Mc Devious
    Mc Devious Před 14 hodinami

    This is a great theory. So, using this theory, explain why the wires get hot and not the air around them.

  • 𝕊𝕦𝕡𝕖𝕣𝕊𝕒𝕞 & ℕℙℂ

    Since B is piling up, it’s pulling the rest down

  • Spectre 4913
    Spectre 4913 Před 14 hodinami

    Lol 'worst idea'. You know little of military history.

  • BHZ 8
    BHZ 8 Před 14 hodinami

    Sorry. But the amount of money we put on a very small amount of explosive in missiles etc. counters your money and feasibility point of steering 😬. You also used sand? Rather than other medium which had cracks go through it compeletely while completely dense. Imagine that twisting frames and infrastructure. On top of that 100 meters only and half the density. Not science fiction, impractical potentially ❤

  • Arek Zawistowski
    Arek Zawistowski Před 14 hodinami

    0:36 BS u can jump out of water. Not as a human but Salamons can

  • Jeremy Wing
    Jeremy Wing Před 14 hodinami

    yes, climb the building...

  • Ascended Vessel
    Ascended Vessel Před 14 hodinami

    I think it’s because even though they are falling at the same times the ladder on the left is also being pulled by the remaining ones at the bottom In other words Basic inertia

  • Darkrunn
    Darkrunn Před 14 hodinami

    I mean, none of the problems listed here are insurmountable in a military sense. The "anywhere in 15 min" rule is dumb, but then there have been plenty of dumb military theories that have given rise to actually useful systems. Restructure the N. Korea scenario. The US and S. Korea know where all of the nonmobile and likely many of the mobile launchers are in NK. Some of those are hardened targets that would need to be dealt with swiftly during the outbreak of war. Being able to salvo strike targets with something that is almost impossible to stop (since the mass of the rod is doing the work, not explosives) and that you dont have to launch from vulnerable aircraft sounds pretty great. The guidance issue isnt really a problem, since you don't really need constant uplink, and if you do just string out a thin tether behind the thing that provides guidance info until it burns up closer to impact. The US, Russia, and China are all also working on hypersonic weapons that have limited manueverability during reentry, so that's not impossible either. The scale of always having a rod nearby is a problem, but even at a lower scale it's still a valuable system if it's doing something better than the military's current options. As for sourcing materials, I won't go into industrializing space here, but hey the moon has all that stuff just laying around....

  • dead_kobaaa
    dead_kobaaa Před 14 hodinami

    Wait I missed something can you explain it again

  • Ihab A.
    Ihab A. Před 14 hodinami

    As if this stripe has micro tentacles

  • R. Kurz
    R. Kurz Před 14 hodinami

    im Fascinated and i will use this topic to speak to my Friends about this. What if..you pointed the lightbeam in the direction the Train drives, woudlnt this give you the possibility to meassure the time in one direction within the fraction the train has moved while the lightbeam traveled fforward and backward. So the same experiment with the Train and the WAgon, but forward rather then upwards. Hope you read this...keep up the good work making Science so awesome!

  • Ray S
    Ray S Před 14 hodinami

    Thanks for busting this myth. I always wondered how well I could stand up to the room. Figured I would have to do better than they people they liked to write about. Thank you for proving that a neurotypical person can, in fact, stay in the room longer than the hype would have us believe.

  • Richard Guo
    Richard Guo Před 14 hodinami

    A possible way Use a stopwatch that doesn’t rely on synchronizing. Send a signal at the speed of light to Mars and Mark will know how long it took using that stopwatch. Mark will then travel back to earth as soon as the signal reaches Mars. Stop the stopwatch the moment Mark gets back to Earth. Subtract the time during the travel and it is the time it took for the signal from earth to reach Mars

  • Ieuan davies
    Ieuan davies Před 14 hodinami

    Simple sync the clocks up using the internet then as soon as it turns 12:01 they send the signal off

  • MuscleChicken
    MuscleChicken Před 14 hodinami

    are those little orange blobs on the outside solar flairs?

  • Micah
    Micah Před 14 hodinami

    BECAUSE AIR RESISTANCE

  • scar_kd
    scar_kd Před 14 hodinami

    Because gravity

    • scar_kd
      scar_kd Před 14 hodinami

      @riclozano yeah I was gonna explain it but I'm too lazy for that

    • riclozano
      riclozano Před 14 hodinami

      true, everyone else be talking about physics, but you rounded it up in 2 words. but maybe elaborate? not tryna be mean :)

  • Thatiely Santiago
    Thatiely Santiago Před 14 hodinami

    ❤️🧘🏽‍♀️❤️

  • Thatiely Santiago
    Thatiely Santiago Před 14 hodinami

    ❤️❤️❤️❤️❤️

  • oryxchannel
    oryxchannel Před 14 hodinami

    What entity was the main sponsor of the "competition" that was the "gecko inspired adhesive"? Do you Derek Muller see any value of crowdfunding your own competition?

  • Leo oram
    Leo oram Před 14 hodinami

    The sail boat analogy is the problem, a sailboat is limited by the speed of wind. But what they are doing is using the propeler as a sail initially, then that will activate the propeller to rotate and act as an actual propeller through a gear mechanism. So the car moves faster than the wind due to the propeller pushing air back, being powered by the wheel shaft, being set in motion by the wind force exerted on the column of air being pushed by the propeller. Net energy comes from the wind. And force is created by increasing the pressure of wind on the field behind the propeller.

  • stealthhumor
    stealthhumor Před 14 hodinami

    History would tell you how hard it would be to hit a target with a knuckleball-the Hiroshima bomb, aided by the Norden bombsight, missed by six miles. The Nagasaki bomb missed Nagasaki. Britain used brilliantly designed "Tall Boy" bombs that flew like darts, but most missed their intended target, the Scharnhorst. Even smart bombs missed their marks, and the Air Force enhanced its outstanding reputation for accuracy by not airing the misses.

  • Ken Smith
    Ken Smith Před 15 hodinami

    Just think of the potential in the future: humans being blown off a conveyer belts by these computers just like potato chips: Brave New World!

  • Paulo
    Paulo Před 15 hodinami

    *America Exblain! Exblain America! EXBLAIN!*

  • Thx4Ban
    Thx4Ban Před 15 hodinami

    bro I'm so high the marbles going round and round and round and round and round and round my head dude

  • Venus
    Venus Před 15 hodinami

    but how does light know that its going the opposite? like does the light go ''oh this way is opposite so lemme go slower/faster.'' ? or lets say that when light goes the opposite way it goes slower or faster, to whom that way is opposite? both ways can be opposite and the non opposite way. so the light speed can change whether it travels one way at full speed or not... it can spend 10 minutes to go but come back the second it reaches there so does that mean the one way light speed can shange between 299km and infinite? but cant it go slower? spending 5 minutes going and 5 coming back? so that makes the one way light speed 299/2 ? so that means the one way light speed can change between 0 to infinite... for a group of photons one takes hella brain damage measuring these... anyway unless the two way speed changes nothin is wrong.. maybe it was meant to be that way idk lol

  • Ken Smith
    Ken Smith Před 15 hodinami

    Think of how much, planning experimentation, innovation, physical effort, materials etc was needed just to make some of the most basic functions that we as humans do all the time effortlessly

  • Think About It!
    Think About It! Před 15 hodinami

    Yeah for Tukey! FFT

  • riclozano
    riclozano Před 15 hodinami

    Could be because of air resistance. The ladder that remains in freefall will encounter more air resistance than the one that hits the table because in the case of the one that remains in freefall, the steps will keep on generating drag, while in the case of the ladder that hits the table, those steps stop generating drag. So at the start the difference in velocity isn't very noticeable, but near the end, the drag difference is very high, so the effect is more noticable. I also don't think it's the pegs' angular velocity that speeds it up because the end of the peg is accelerating towards earth at the same rate as the rest of the ladder? but the peg also has a horizontal distance to move, because a hypotenuse is longer than a side, so it would actually be moving downwards slower than the rest of the ladder. Idk tho, some of the things that people are saying are past my gr.9 knowledge.

  • Moss Fett Labs
    Moss Fett Labs Před 15 hodinami

    This test is not accurate, the rods would be gps-guided to the ground the accuracy would be 39 inches. In space right now, is the airforce robot shuttle, which is thought to be capable of carrying 6 nuclear war heads. Can change orbit at will, to any location. Stays in space for 2 years at a time. But then there is the dragon, capable of dropping 45 cruise missiles from a single cargo C17 each with a nuke 460 kiloton.

  • Thatiely Santiago
    Thatiely Santiago Před 15 hodinami

    🤣🤣🤣🤣🧘🏽‍♀️

  • SgtAwesome97
    SgtAwesome97 Před 15 hodinami

    This seems like one of those "lots of money, no thought" kind of videos. Honestly sub par quality for this channel, so many things that could and honestly should have been done better, especially given the minds behind it. I honestly expected better.

  • Thatiely Santiago
    Thatiely Santiago Před 15 hodinami

    ❤️❤️❤️❤️❤️

  • Thatiely Santiago
    Thatiely Santiago Před 15 hodinami

    ❤️❤️❤️❤️❤️❤️