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Results tagged with levitation
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user 26969
23
votes
Explanation for this type of (magic-trick) suspension?
First - let's do this using electrical charge: how much charge would you need to allow levitation, and what would the potential have to be? … With magnetic levitation, there are two problems: the strength of the magnet, and stability (two dipoles cannot provide a stable levitation platform). …
- 119k
7
votes
How much magnetic field will be required to levitate a human?
A bit of clicking gets you to http://www.ru.nl/hfml/research/levitation/diamagnetic/ which tells us that the frog was levitating in a field of 16 Tesla. … They give the math as well:
Therefore, the vertical field gradient ∇B2 required for levitation has to be larger than $2µ_0ρg/χ$. …
- 119k
5
votes
Is magnetic levitation a good way to vibrationally isolate a speaker from its support?
TL,DR:
Magnetic coupling results in lower transmission of sound energy than physical contact
Controlling what surfaces vibrate gives more control over sound generation
The same benefit could be achi …
- 119k