Which would theoretically use more energy, levetating the "train", or overcoming... | Hacker News

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		scoot on Dec 3, 2014 \| parent \| context \| favorite \| on: World's Simplest Electric Train [video] Which would theoretically use more energy, levetating the "train", or overcoming the friction? (I"m not suggesting this design can levitate, just curious about the trade-off.)

CraigJPerry on Dec 3, 2014 | [–]

Levitating.

Since overcoming the friction can be achieved through approaches like coating the wire in ultra low friction material which will consume no power to operate.

orlp on Dec 3, 2014 | [–]

The train never levitates.

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