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Off Topic Hobbies => Mechanical Engineering => Topic started by: mathsquid on March 17, 2021, 04:45:46 pm

Title: Dirac Belt Trick Mechanism cleverly avoids twisting wire
Post by: mathsquid on March 17, 2021, 04:45:46 pm
This is an interesting video I ran across. A cube is turned continuously, but the string attached to it doesn't get twisted.

 video (https://www.youtube.com/watch?v=byi5Gzjc04Q)

More info: https://en.wikipedia.org/wiki/Plate_trick (https://en.wikipedia.org/wiki/Plate_trick)
Title: Re: Dirac Belt Trick Mechanism cleverly avoids twisting wire
Post by: Circlotron on March 25, 2021, 01:10:11 am
I wonder if you could somehow use that principle to construct a homopolar disc generator or motor that doesn't need slip rings?
Title: Re: Dirac Belt Trick Mechanism cleverly avoids twisting wire
Post by: domika on April 24, 2021, 04:29:08 pm
this is a good project
Title: Re: Dirac Belt Trick Mechanism cleverly avoids twisting wire
Post by: T3sl4co1l on April 25, 2021, 01:55:56 am
I wonder if you could somehow use that principle to construct a homopolar disc generator or motor that doesn't need slip rings?

Hmm, perhaps.  But is the solution worse than the problem -- how are you going to get all that current out?  Surely not through cables, the amount of flex requires a lot of slack and discourages large amounts of it. :-//

Somewhat related mechanism:

https://www.youtube.com/watch?v=6RLfBUC3y2g (https://www.youtube.com/watch?v=6RLfBUC3y2g)

Tim