Using cold shit and magnets or something, you can make some awesome floating crap
[media]http://www.youtube.com/watch?v=Ws6AAhTw7RA[/media]
how the fuck does this work
I didn't think this was even possible.
That's fucking awesome.
Fucking magnets, how do they work?
Holy crap that is cool.
We are living in the future!
When it was spinning on that table with the smoke trailing behind it looked like...a ghost cookie or something, I don't know.
If they can find a way to apply this to vehicles it would be awesome-tastic.
I came.
[img]http://1.bp.blogspot.com/-TisWeIwzuAE/Tef5qxXbzNI/AAAAAAAAACE/KTXGWQ_WjLg/s1600/science-robot.gif[/img]
That pretty much explains it.
that's really cool
You know what, fuck you science, I don't like you anymore, you keep trying to find ways to stop humans from advancing.
When objects and elements are put at extremely low temperatures (barely a few Kelvin above 0K) they do really freaky stuff. One thing I remember them doing besides superconductivity and this, is that liquid hydrogen (or was it oxygen?) can drip up glass or even just 'phase' through it.
yeah, when materials reach extremely low temperatures they begin to do freaky stuff like this
i know it has something to do with how little energy is lost between the magnet and the object but i can't get much further than that
[QUOTE=salty peanut v2;32838058]how the fuck does this work[/QUOTE]
Electric currents near the surface of a superconductor induced by the magnetic field of the magnet exactly cancel the magnetic field such that the magnet ends up repelling itself. It's called the Meissner effect.
Yeah, and I assume it locks due to the Halbach array of the magnets, although that doesn't explain the locking it still experiences over the ring magnet. More than the Meissner effect is in play here.
Oh yeah: science, you amazing.
Holy shit.
the fuck
How stable is it though? Obviously it can hang there under its own weight, but he's able to just move it around at will without having to apply much force. Is it just because his hand is creating the currents to go around, and then when he moves it away, they go through the object again?
This one's a bit more educational.
[media]www.youtube.com/watch?NR=1&v=VyOtIsnG71U[/media]
Media tags are broken...?
[QUOTE=T2L_Goose;32839521]How stable is it though? Obviously it can hang there under its own weight, but he's able to just move it around at will without having to apply much force. Is it just because his hand is creating the currents to go around, and then when he moves it away, they go through the object again?[/QUOTE]
[img]http://knowyourmeme.com/i/000/046/123/original/magnets.jpg?1270937748[/img]
Snip
I wonder how long it would run around on that track for if he didn't stop it.
[QUOTE=T2L_Goose;32839521]How stable is it though? Obviously it can hang there under its own weight, but he's able to just move it around at will without having to apply much force. Is it just because his hand is creating the currents to go around, and then when he moves it away, they go through the object again?[/QUOTE]
When its hanging there under its own weight the net force acting on it is zero (its not accelerating anywhere), but as he applies his own force (and torque, for rotations) it becomes unbalanced.
You can assume whatever magic is holding it up can supply force equal or (more likely) greater than the weight force of the little object (which doesn't look to weigh [I]too[/I] much - to move it would only require to overcome this force and as soon as this unbalanced force is removed the object returns to equilibrium.
This would look so awesome if you did it in an even bigger scale.
[QUOTE=Foogooman;32840200]I wonder how long it would run around on that track for if he didn't stop it.[/QUOTE]
Until the disk warms up enough for it to drop. I don't think air resistance would stop it before then.
How the fuck?
The answer is simple. Its powered by heresy.
[QUOTE=Joyful Mystery;32838160]When it was spinning on that table with the smoke trailing behind it looked like...a ghost cookie or something, I don't know.
If they can find a way to apply this to vehicles it would be awesome-tastic.[/QUOTE]
They're already trying to get it to work on vehicles. Elevated trains in specific. Right now, they're just using electromagnets. If they used the method that this guy used, imagine how much it would change daily life.
I wish I had some liquid nitrogen.
Supercooling, ultra overclocking and shattering stuff would be fun.
So this is how the aliens do it.
Saw this being done irl during a lecture at my school. Pretty neat, sadly the lecturer didn't have that cool circle shaped track, only a linear one. Still, when he was like "and now I'll turn it upside down" there was a slight gasp in the audience, nobody really expected the magnet to actually hold itself up on the track.
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