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/sci/ - Science & Math

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1797741 No.1797741 [Reply] [Original]

Okay, so, if I get two magnets with different polarities, they repel each other, right?
So if I connect them to each other, they'll still try to get away from each other, right?
Keeping this in mind, if I have one of the magnets be slightly weaker and lighter, I should be able to get lift this way.
Does this make any sense, or do I just have a very loose grasp on the laws of physics?

>> No.1797748
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1797748

>mfw at least half of all threads on the front page are newton's third law trolls

>> No.1797751

>>1797748
So I'm guessing no, then?
Damn. I thought I had something going on, here.

>> No.1797752

>>1797741

This is basically how a mag rail train works.

It involves electromagnets and heat dissipation is a serious problem.

>> No.1797763

>>1797751

If you're expecting to fly it's not impossible, but it would very likely take far, far, far too much energy to be worthwhile.

>> No.1797778

>>1797741
Isn't there some dumb office toy that exploits this?

Requires energy blahblah. I think there's some dumb reason you can't do this with regular old magnets like they wear out or something

>> No.1797827

Magnets doesn't have different polarities.

And yes, tape them together like that and the top one will float. There are office toys which lets things float around using neodyne magnets.

http://www.amazon.com/3-5-Floating-Globe-Magnetic-Levitating/dp/B0007KRXGM

>> No.1797843

Every magnet has both poles. There is no such thing as a "north" magnet or a "south" magnet.