Veritasium
Veritasium
  • Video 29
  • Views 1 973 535 561
The Stickiest Non-Sticky Substance
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...
Views: 2 884 064

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Comments

  • Yodatwinkie
    Yodatwinkie 9 hours ago

    Wtf is this video 🙄☠️

  • Lucien Fury
    Lucien Fury 9 hours ago

    The idea only works if they are dropped from orbit never meant to be a one shot. One would drop hundreds of them and they would be devastating but a few kilometers isn't going to cut it because they cant achieve terminal velocity.

  • Pk PK
    Pk PK 9 hours ago

    Cause they landed on a higher elevation. This is a stupid question. They all stacked up, ima table white a combined height that is more than the bottom floor, this lets the ladder reach the table first

  • Mangojuice
    Mangojuice 9 hours ago

    Femto…

  • Ali Hamza
    Ali Hamza 9 hours ago

    Left one lost potential energy due to early contact with surface

  • Infidel7153
    Infidel7153 9 hours ago

    This subject is way over this guys head .

  • Pro. Duece Justice
    Pro. Duece Justice 9 hours ago

    Inertia a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

  • cip cap
    cip cap 9 hours ago

    would be fun to see in some arcade game robots😫

  • bontronblock
    bontronblock 9 hours ago

    Nothin humane about kill anything LMAO

  • Micah Kress
    Micah Kress 9 hours ago

    This is very similar to the "flywheel bots" in Battle Bots. By spinning up the flywheel over time, they store a crap load of energy and release it all at once on its victims. That's why they always did so well.

  • Alex Smith
    Alex Smith 9 hours ago

    Wow, this is so cool!

  • CanalOtro
    CanalOtro 9 hours ago

    What type of budget does these people have

  • bontronblock
    bontronblock 9 hours ago

    Nothing humane about killing anything LMAO

  • Rhisa David
    Rhisa David 9 hours ago

    The comment below about each impact being translated into a twisting motion seems very credible and may be more significant this but I notice the shockwave from each impact travels up the chain as a sine wave. If you look closely you can actually see it oscillating and the wave ‘travels’ up faster than the ladder travels down. With each impact a new wave is created curving the chain even more thus almost imperceptibly shortening the distance between rungs. The net effect of which is a slight but cumulative acceleration force ‘pulling’ the ladder down slightly quicker with each impact than would gravity alone. The final rung then lands slightly ahead of its straight-chained counterpart. Add this to the twisting motion and you’ve got a ball game.

  • MARION WISE
    MARION WISE 9 hours ago

    One to One transfer of information, knowledge, and wisdom cannot be replaced. AI may come close but nothing will ever be as effective as human to human communication. Even in our current education system at it's best and worst, there are opportunities for One to One instruction.

  • Mikeztarp
    Mikeztarp 9 hours ago

    2:15 "...spiders or other insects." -_-

  • Amirali Kamalimanesh

    Give respect to the poor firefighters who thought it was a normal fire disaster...

  • Martin 'teadrinker' Eklund

    "Let me know if you want me to climb a building with gekko adhesive" Yes please.

  • Polar Cube
    Polar Cube 9 hours ago

    Because it hit the table

  • Vartazian360
    Vartazian360 9 hours ago

    You can see if you watch closely its because dropping something with a string at an angle causes tension caused from the extra force pulling down after the impact.. The tension works its way up the ladder until it pulls the top portion down

  • Kevin WinterMadness
    Kevin WinterMadness 9 hours ago

    I watch a lot of content made by English speakers, a lot of them (or i should say most of them) come from America, the UK and other countries where English is the main language. Within it, it's not often that other countries are mentioned. But it happens. Like a video on Metal music might mention the french band Gojira. That said it's already pretty cool to see a Frenchman mentioned in a video from a channel focused on science (in between other subjects), but even more so that the person mentioned is from a city I've lived in for years: Toulouse. It's a really cool city where I've built some of my most cherished memories. I've been recently catching up with some of the friends I've made there back in the day. And it's already rare to catch up with someone from your past, but is nice when they also want to catch up themselves. Anyways, Toulouse is a city that was a big part of my life, especially because of the people and the relationships we built. I means, it's within my first year there that I met a friend who is almost the sole reason I'm able to write all of this in English without using any aid. It changed my life and opened a lot of doors. Sorry I went into a nostalgia filled semi-rant. It started with me wanting to express it's nice to see some things that had a great influence on me mentioned in a video from a 13M+ sub channel. That's awesome. Cheers from France! 🍻

  • surpeer
    surpeer 9 hours ago

    Idk you tell me💀

  • Andreas Delleske
    Andreas Delleske 10 hours ago

    I know but I'm lazy.

  • Terpsta Dunknden
    Terpsta Dunknden 10 hours ago

    Brilliant is a subscription scam

  • Martin Trout
    Martin Trout 10 hours ago

    Energy return up the ropes, decompression of the tension and relative motion.

  • Kevin Hardy
    Kevin Hardy 10 hours ago

    Free fall

  • Monster King Adversity666

    Nobody in the ENTIRE world: Human Science:

  • Cheese Burger
    Cheese Burger 10 hours ago

    If I were unaware of this "type" of weapon before this video, please do not vote.

  • CosmiQToast
    CosmiQToast 10 hours ago

    Why do you say the fields carry the energy rather than directs the energy. From what I am understanding is, the fields basically encapsulates the energy, allowing energy to flow from one point to another. So essentially the fields act as a tunnel or tube. We don’t say the hose carries water. We say the tube is directing the water in a general direction, opposite of the way the water is introduced into the tube. Am I understanding this correct?

  • Angelo Sasso
    Angelo Sasso 10 hours ago

    Could make for a nice weapon of mass destruction...

  • Abaad gamez dattebayo
    Abaad gamez dattebayo 10 hours ago

    because gravity is pulling b because there is more mass

  • Lucas Tonussi
    Lucas Tonussi 10 hours ago

    Amazing

  • Gani Turysbekuly
    Gani Turysbekuly 10 hours ago

    Guys, I want to ask one thing from all of you. What f²(x) should be? f(f(x)) or (f(x))² ? reminder: f^(-1)(f(x))=f^(-1)(f^(1)(x))=x

  • Teslaspecter
    Teslaspecter 10 hours ago

    WHOAH WHOAH WHOAH HOW DO YOU SIMULATE AN EARTHQUAKE AT CERN? :o

  • Justin Davis
    Justin Davis 10 hours ago

    tldr: there is no such thing as random. Everything is a fractal

  • coffeeexmachina
    coffeeexmachina 10 hours ago

    They said, "Wow it's really swinging," and then didn't think to radically shorten the strap so it wouldn't swing. I think a much better (and cheaper) idea would have been to use tractors to smooth out a large area then drop a fin- or spin-stabilized rod from as high as possible. It wouldn't need to be exactly on target - you just want to see the impact results. As ex-military, I believe the rods from god would still work, but only as a means to cause devastation (and demoralization) in a large area, not as pinpoint strikes.

  • hudumannaia
    hudumannaia 10 hours ago

    I guess bcz little bounceis grab a bit the rest of the lather.

  • laddiebuck12
    laddiebuck12 10 hours ago

    The Hellfire missile used on al-Qaeda leader Ayman al-Zawahiri was kinetic, with no explosives.

  • MrGreekBlade
    MrGreekBlade 10 hours ago

    every granite block at king chamber is 70 tones...how they lift at 122ft high a block 50-60-70 tones??? anyone knows what leverage you need to lift that block so high????

  • emmi williams
    emmi williams 10 hours ago

    The table

  • Tamlyn Burleigh
    Tamlyn Burleigh 10 hours ago

    I love this sort of puzzle. Thanks. I think you need to look closely at the point of impact. The rung hits the table and swerves or rotates away from the point of contact. This is probably the key.

  • Physics but Awesome
    Physics but Awesome 10 hours ago

    10:13 While that explanation holds true in essence, a "tangential" hit of an asteroid on the moon is not really gravitationally possible - if it impacts on the moon, it will do that on an elliptical trajectory with the centre of the moon in the focus of the ellipse...

  • Namijneb Ruh'tra
    Namijneb Ruh'tra 10 hours ago

    Thanks I feel smarter now but I will have to watch this again

  • Tim Edmonds
    Tim Edmonds 10 hours ago

    Some think the USA has tungsten tipped rods 100 lbs or so in space..still would do alot of damage. Near impossible to detect.

  • ziggy4465-Bill G
    ziggy4465-Bill G 10 hours ago

    If you pay attention, they’re still falling at the same rate. The one that hit the table just bunched up. If you stop the video as the free falling one passes the table, they are at the same height.

  • Astrecks
    Astrecks 10 hours ago

    Fascinating! My bowling ball is a gyro-balanced 'Don Carter Gyro 2'. It's now 49 years old! I bought it and had it fitted in 1974 when I was 18 years old, and it cost me £21 back then. I've rarely used it since the end of the 70s. I'm old school and prefer manual projection scoring on league games.

  • Sal Paramo
    Sal Paramo 10 hours ago

    Air friction causes the dif.

  • Matt Harms
    Matt Harms 10 hours ago

    There was a bomb that was developed for the SR-71/A-12 that was a solid metal bomb. Read the book titled “skunk works “ by Ben Rich

  • G. F.
    G. F. 10 hours ago

    Ken Wheeler knew all of this a long long time ago.