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Veritasium
United States
Joined Jul 21, 2010
An element of truth - videos about science, education, and anything else I find interesting.
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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...
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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.
▀▀▀
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...
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Wtf is this video 🙄☠️
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.
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
Femto…
Left one lost potential energy due to early contact with surface
This subject is way over this guys head .
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.
would be fun to see in some arcade game robots😫
Nothin humane about kill anything LMAO
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.
Wow, this is so cool!
What type of budget does these people have
Nothing humane about killing anything LMAO
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.
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.
2:15 "...spiders or other insects." -_-
Give respect to the poor firefighters who thought it was a normal fire disaster...
"Let me know if you want me to climb a building with gekko adhesive" Yes please.
Because it hit the table
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
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! 🍻
Idk you tell me💀
I know but I'm lazy.
Brilliant is a subscription scam
Energy return up the ropes, decompression of the tension and relative motion.
Free fall
Nobody in the ENTIRE world: Human Science:
If I were unaware of this "type" of weapon before this video, please do not vote.
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?
Could make for a nice weapon of mass destruction...
because gravity is pulling b because there is more mass
Amazing
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
WHOAH WHOAH WHOAH HOW DO YOU SIMULATE AN EARTHQUAKE AT CERN? :o
tldr: there is no such thing as random. Everything is a fractal
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.
I guess bcz little bounceis grab a bit the rest of the lather.
The Hellfire missile used on al-Qaeda leader Ayman al-Zawahiri was kinetic, with no explosives.
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????
The table
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.
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...
Thanks I feel smarter now but I will have to watch this again
Some think the USA has tungsten tipped rods 100 lbs or so in space..still would do alot of damage. Near impossible to detect.
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.
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.
Air friction causes the dif.
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
Ken Wheeler knew all of this a long long time ago.