Any physics nerds want to explain perpetual motion in this video?

Discussion in 'BlackHat Lounge' started by tony-raymondo, May 17, 2012.

1. tony-raymondoJunior Member

Joined:
Jun 19, 2009
Messages:
181
459
I used to try to build these machines in my garage when I was a kid.

YouTube is full of them of course.

This one is based on a 200 year old patent, and, since I just spent 50 bucks on gas, i'm assuming its just an illusion.....

But why wouldn't this work?

I'm hoping there is some physics guyz to help?

Thanks!

2. Four SeasonsRegular Member

Joined:
Aug 22, 2011
Messages:
411
206
Location:
Cottonballs
Magnetic levitation. There's a train already operating using maglev.

3. bk071Jr. Executive VIPJr. VIP

Joined:
Nov 24, 2010
Messages:
3,192
7,986
What is physics?

Joined:
Nov 30, 2009
Messages:
983
2,497
in order for the ball to turn the wheel, there has to be some sort of constant torque applied to the ball, which it's presumably receiving from the combination of the force of the magnet and the force of gravity. however there's no logical difference between these 2 forces. you simply have one force pulling the ball in one direction, and one force pulling it in the other direction, both of which are acting on the ball's center of gravity. there is no "preferred" direction for the ball to spin in, so it simply wouldn't spin. it would just sit on the side of the wheel motionless once it's found an equilibrium point.

it might look like the ball is supposed to "pull" the wheel downward because the force of gravity is pointing downward, but then you'd have to ask yourself why the ball isn't "pulling" the wheel towards the direction of the magnet instead.

most likely, there's just a motor hidden under the table :\

• Thanks x 1
5. PinguSpyJr. VIPJr. VIP

Joined:
Dec 7, 2007
Messages:
1,047
942
Occupation:
Internet Farmer
Location:
Pineal Gland
But I think this is more better..

Last edited by a moderator: May 18, 2016
6. LeithJr. Executive VIPJr. VIP

Joined:
Oct 30, 2011
Messages:
5,645
8,989

Sorry, PHYSICS is not my best subject.

Joined:
Jun 19, 2009
Messages:
181