Jump to content
Science Forums

Homopolar motor rotation in Vacuum

Recommended Posts

3 hours ago, StoyanNikolov said:
Hi again,
I've found interesting video.
Roller homopolar motor :
Roller Motor
Do you think the motor from 1:08 min Will self rotate in Vacuum/Space
(No other forces : Gravitational or Other type.)
Thank you in advance. 
Roller motor.jpg

I see no reason why it wouldn't rotate in a vacuum, why do you think it wouldn't? 

Link to comment
Share on other sites

1 hour ago, OceanBreeze said:

I am fairly confident it will spin in a vacuum because the spinning is self-referential, that is, it does not spin with reference to anything other than itself.

Some people may confuse rolling with spinning. Of course, it cannot roll in a vacuum as that requires an external surface to roll on.

I think you're correct, I think the wire would tend to rotate instead of the battery though. 

Link to comment
Share on other sites

15 hours ago, StoyanNikolov said:

Thank you for the Reply. 

How much you are confident it will self rotate?

I've asked this topic in other forums and the opinions were not 

so confident.

I am pretty much 100% confident that wire would rotate around the battery but the battery is heavier than the wire I would think. 

Link to comment
Share on other sites

  • 2 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...