Euler's Disk physics toy

[Zboss4]

i wanna try spinning the totem from inception on this thing :P

[5random1]

I miss my ole' VW. Sounded just like that, then died.

[MrGimli2]

30 mins later!!.....

[SpiderOleg]

If people find a way to take the energy from this disc, that may be a power supply, right?

(I'm just at 7 grade, lay off)

[DeeperThanDub]

@SpiderOleg nah sorry dude. Energy cannot be created, the amount of energy you put into the disc (from your hand) is the only energy thats given out ie its only using the energy thats been given to it. not a stupid question if you don't understand energy conservation laws. I'm studying physics at university and i used to think when i was younger you could some how extract the energy from an optical illusion because it looks like its moving. haha how dumb is that. Peace dude

[Hallo503]

at 1:45 the camera is too slow for the disk xD

[CGSmij08]

@Hallo503 noo the disk jumped to hyperdrive! Silly =P

[darkcloud0987654321]

this is wat aliens use to fly....

[ChrisRJ]

As far as spinning disks goes, this makes the quarter obsolete.

[Hedgehogstudioss]

it sounds like it's gonna take off into base and then suddenly...pop...stops just like that

[KedRui]

Yea it's awesome!! nuff said

[winkwinkers799]

Is it hot at the end?

[sarabuffalo1]

This is the free energy matrix! its creating energy. check out the latest crop circle!

[middlj14]

@Notharir It's named after Leonhard Euler, a Swiss physicist.

[gorgolyt]

@middlj14 more of a mathematician, but whatevs.

responsible for the most beautiful equation of all time, e^(i*pi) + 1 = 0

i've never seen one of these things before... awesome

[shoeginski]

@gorgolyt I had to derive the equation e^(ix)=cos x + i sin x in my modern algebra class using series expansions, and when you substitute pi into that equation, e^(i*pi) + 1 = 0. Absolutely crazy. I'm totally asking for one of these for Christmas.

[gorgolyt]

@shoeginski hah, yes i was going to order one too.

i've done a year of a maths degree and i still have trouble getting my head around euler's formula. it's just totally non-intuitive... we associate exponents with something getting bigger and bigger, but when it's imaginary, it turns into a stable rotation... taylor series make it clear that it's true, but as for a more visceral reason, i'm utterly at a loss...

[NickRoman]

gotta love gravity

I wonder how fast such a thing can get spinning. Now replace the "coin" and flat surface of the mirror with the earth and the sun and think about that for a while.

[LightsEShadows]

yeah its wonderluf. Gravity waves ??

[SCENARIOBABY]

reminds me of a spaceship..

[tetavo]

i love the sound when the disk stops. "zhhhhhhhOP"! amazing toy!

[masamura112]

i want one!!! ebay time

[cyborgtroy]

My physics teacher had one of these, they're awesome. Also, in the end scene of Shadow of the Colossus, you can hear one spinning.

[poopr1221]

Haha. I bought one of these at the Oakridge science museaum.

[grinningsphinx]

It would have been better if it had exploded at the end wiping out the whole block...ah well...

[horsburgh]

the concept is simple. The idea is simply to reduce fiction and vibration as much as possible. if neither friction or vibration existed the "coin" would ocsilate forever. it is important to note that the platform is NOT transferring any energy into the "coin".

[luisbaltazar1]

man, that was AMAZING!

where did you get that mirror? did you make it yourself?

[JBS19]

1:41 is the best

[dbzkidkev2]

this seems to be an overunity device because that device keeps moving for more time than the hand spinning, but maby it has to do sumthing with gravetational energy

[proNoobist]

no such thing, never will be

[Familyguyfan53]

That could either be really calming or really annoying at times ...

[theburford]

Wow, I could hear it at the very end and it looked like it wasn't moving, and at one point it looked like it was going in slo mo, awesome.

[gallopingskunk]

do u need that stand that the disk is spinning on?

[heliad]

The mirror that the disk spins on is slightly concave and helps the effect. But you can 'spoll' a disk on a level surface... but with a heavy disk you can damage even a concrete floor.

[UnspokenSALSA]

this could be a good idea for a flying type of device

[thetrojanhorseepic]

iv wanted one of them for ages. do you think its worth £17?

[mustbe18]

best part is at the very end

[locator1]

gonna get me one of those

[Entity1490]

It's awesome. :D