(no subject)

Date: 2016-06-20 09:15 pm (UTC)
From: [identity profile] skington.livejournal.com
What's the science - a magnetic field or something?

(no subject)

Date: 2016-06-21 01:11 am (UTC)
jerril: A cartoon head with caucasian skin, brown hair, and glasses. (Default)
From: [personal profile] jerril
A flowing electrical current generates a magnetic field. This is the most primitive DC engine I think I've ever seen.

The things on the end are a) wheels and b) contacts. Nothing hidden in them I think. The wire is just a copper wire, making contact between the two poles and enabling the current. It probably also gets hot as blazes if you leave it running.

(no subject)

Date: 2016-06-21 01:56 am (UTC)
From: [identity profile] skington.livejournal.com
OK, but where does the movement come from? Is it to do with the shape of the wire? The comparatively low weight of the wire? Your everyday magnets don't move about.

(no subject)

Date: 2016-06-21 02:48 am (UTC)
jerril: A cartoon head with caucasian skin, brown hair, and glasses. (pleasent)
From: [personal profile] jerril
The magnetic field from a static magnet is, well, static. The movement is coming from the flow of electrons, unless I've totally forgotten the crappy little explanation I got in highschool science.

Unfortunately magnets are some complicated bullshit, so I never learned a higher-detail explanation. I know that what they teach you in highschool about magnets is only approximate. Lies you tell to children and all that.

(no subject)

Date: 2016-06-21 02:52 am (UTC)
jerril: A cartoon head with caucasian skin, brown hair, and glasses. (pleasent)
From: [personal profile] jerril
Herpaderp, there's probably permanent neodymium magnets in the wheels. *facepalm*

Which would make it a simple electromagnetic motor that happens to use the positive pole from one magnet and the negative pole from another magnet, instead of the two ends of a horseshoe magnet.

https://www.youtube.com/watch?v=d_aTC0iKO68
Edited Date: 2016-06-21 02:53 am (UTC)

(no subject)

Date: 2016-06-21 12:34 pm (UTC)
From: [identity profile] rdmasters.livejournal.com
I think it is a very clever implementation of a homopolar motor. https://en.wikipedia.org/wiki/Homopolar_motor

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