Pertetual motion item

[Guest2]

Does anyone know where I can buy a good quality perpetual motion 'toy' these are the things that use kinetic energy to move and balls spin around each other. Similar to Newtons cradle.

I have seen one on a US website and are called 'Space balls' but its only cheap and runs on battery power. I have always wanted one but never thoight to look for one

 

[King Damager]

Perpetual motion doesn't exist.

Do you mean the birds that dip into water and drink for an exceptionally long time?

kd

 

[godinman]

There is I believe, no such thing.

 

[King Damager]

http://www.amazon.co.uk/Hawkins-Baz...A2ZE/ref=sr_1_2?ie=UTF8&qid=1359324381&sr=8-2

kd

 

[yhack]

I have a perpetual motion toy that runs on space turbulence.

 

[Malevolence]

I have some magic beans for sale OP. You want in?

 

[Deep]

Perpetual motion doesn't exist.

Do you mean the birds that dip into water and drink for an exceptionally long time?

kd

 

[Guest2]

Are right, so they are not just kinetic energy similar to newtons cradle?

Like this

 

[Zefan]

That isn't perpetual motion. There is friction between the moving parts and with the air therefore energy is lost. It will stop eventually.

 

[Wizardskills]

OP, if you have a cat and some buttered toast you can make one:

 

[Judgeneo]

OP, if you have a cat and some buttered toast you can make one:

Not quite, a dead cat doesn't always land on its feet.
At the speed the cat-buttered toast combination would be spinning, it would be impossible for the cat to consume enough sustenance to survive.
Unfortunately, the cat would die, and the laws of thermodynamics will reign once more.

 

[Fuzz]

That isn't perpetual motion. There is friction between the moving parts and with the air therefore energy is lost. It will stop eventually.

What you fail to realise is that it doesn't stop... Well it does when the 9v battery runs out that's in the bottom of the thing..

I've got one.

 

[doofer]

Not quite, a dead cat doesn't always land on its feet.
At the speed the cat-buttered toast combination would be spinning, it would be impossible for the cat to consume enough sustenance to survive.
Unfortunately, the cat would die, and the laws of thermodynamics will reign once more.

That would be catastrophic.

 

[AHarvey]

Not quite, a dead cat doesn't always land on its feet.
At the speed the cat-buttered toast combination would be spinning, it would be impossible for the cat to consume enough sustenance to survive.
Unfortunately, the cat would die, and the laws of thermodynamics will reign once more.

Actually, the entire argument there is based around both items falling, however, one they are attached to the motor they are no longer falling so no need to spin.

 

[momentimori]

In this house we obey the laws of thermodynamics!

 

[kn100]

OP, if you have a cat and some buttered toast you can make one:

Thanks for this, I just spat coffee all over my monitor. I've only had this thing a few months

 

[Malevolence]

Thanks for this, I just spat coffee all over my monitor. I've only had this thing a few months

Shenanigans, I call them.

 

[Judgeneo]

Actually, the entire argument there is based around both items falling, however, one they are attached to the motor they are no longer falling so no need to spin.

But if they don't spin, then there is no power generated?
Thermodynamics wins again

 

[arknor]

That isn't perpetual motion. There is friction between the moving parts and with the air therefore energy is lost. It will stop eventually.

you can get clocks that run on temprature change/air pressure

I'm sure someone could make a toy to do the same thing but i'd imagine it would be stupid expensive just like the clocks are

 

[Gammawolf]

But if they don't spin, then there is no power generated?
Thermodynamics wins again

Aren't you more worried by the fact that bread has no means to altar is own velocity?