Why would'nt this work?
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Thank you for sharing--that was a really neat demonstration, and I enjoyed seeing all the troubleshooting as well. Will definitely be subscribing and checking out more of their videos!
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as a software engineer that watches too much youtube, this is the first time it’s clicked for me:
If the train moves at the speed of light, then nothing inside it will move because time will stop.
the pieces of information:
- time moves slower the faster you travel, and
- nothing can travel faster than the speed of light
have never been concretely connected in my head, but this makes a lot of sense now: time moves slower (for you) the faster you travel BECAUSE that’s the thing that stops you from moving faster than the speed of light… AND that holds true from all perspectives because it’s like… a trade-off?
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Have you spoken to your healthcare provider about Viagra^tm^? It may be able to help with your issue. (Please seek immediate medical help with an erection lasting more than 4 hours).
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Dang there goes my patent
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Think of it like this. If our universe is a simulation, then the speed of light is the maximum speed at which information can propagate through reality. We know that for anything to move through space, it must move from one adjoining position to another, then another, then another, incrementally. Each one of those increments takes, at minimum, one 'tick' of the universe. That's one tick to increment each bit of information, that is, the position of something moving at light speed from position x,y,z to x+1,y,z. Light moves as fast as the universe allows; if there was a faster speed, light would be doing it, but it turns out that our universe's clock speed only supports speeds of up to 299,792,458 meters per second.
What you have here is sound. Motion propagates through material, at its fastest, at the speed of sound in that material. That's part of the reason why moving large scale objects quickly gets weird.
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You're pushing the atoms on your end, which in turn push the next atoms, which push the next ones and so on up to the atoms at the end of the rod which push the hand of your friend on the moon.
As it so happens the way the atoms push each other is electromagnetism, in other words sending photons (same thing light is made of) to each other but these photons are not at visible wavelengths so you don't see them as light.
So pushing the rod is just sending a wave down the rod of atoms pushing each other which the gaps between atoms being bridged using photons, so it will never be faster than the speed at which photons can travel in vacuum (it's actually slower because there's some delay since part of the movement of that wave is actual atoms moving and atoms have mass so they can't travel as fast as the speed of light).
In normal day to day life the rods are far to short for us to notice the delay between the pushing the rod on one end and the rod pushing something on the other end.
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I used wave function as a bad form of shorthand for the general properties of the photon, such as the theoretically infinitely extending magnetic and electric fields. Those associated fields stop existing when the photon is absorbed onto a screen. They collapse faster than light can travel. This doesn't ruin much of modern theories, because there doesn't seem to be a way to transfer usable information through this phenomenon.
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Best answer
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It depends on the person who's holding it and pushing it. For me it takes at least three minutes!
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I don't see this mentioned in any of the other comments: the repulsion between atoms that causes the movement to propagate through the stick is actually communicated via photons. So your push really generates the same kind of particles that your light torch is generating, and they travel at the same speed (except slowed down by repeated absorption and excitation by the electrons in the atoms of the stick).
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That's wack af
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Neither do the two gravity wells the stick spans. And the earth and moon are moving relative to each other, someone would probably get their head knocked off by that stick. Before it eventually falls to the earth with quite a bit of force because earth's gravity well will win. Then it'll eventually settle into a giant teeter totter, assuming it is rigid enough to survive the impact.
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Putting it on the moon is just a distraction. It doesn't matter if the rod is 1m long or 100,000km.
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because...
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Alas, the longer the stick is, the floppier it gets.
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I don't get it. Care to explain?
