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A frog levitating in a strong magnetic field (1997) [video]

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Re: A frog levitating in a strong magnetic field (1997) [video]

#11
post #9

A fun fact is that, if memory doesn't fool me, the levitating frog experiment was carried out by Micheal Berry and Andre Geim, and they were awarded the ignobel for it. Berry is the same one of the Berry phase for which he received a ton of non-humorous awards, and Geim went on to discover graphene and receive a Nobel without the ig in front.

Is Geim the only person so far to receive a Nobel after receiving an Ig Nobel?

Yes (in either order)

Re: A frog levitating in a strong magnetic field (1997) [video]

#12
post #6

Any chance of magnetically repelling a person from a ceiling, and/or attracting them from the floor, to create artificial gravity in space?

No. The magnetic field needed increases as the size of the levitated region increases. For something as big as a person the magnetic field would require magnets made of impossibly strong materials to resist the JxB forces.

So you’re saying there’s a way.

Re: A frog levitating in a strong magnetic field (1997) [video]

#14

Any chance of magnetically repelling a person from a ceiling, and/or attracting them from the floor, to create artificial gravity in space?

Seems like that couldn't possibly be practical. For one thing, it'd be like being in an MRI machine -- no metal of any kind allowed. A field that strong would likely interfere with any instruments or electronics as well, even if they were outside the room within a certain distance.

Much simpler to use constant acceleration (or spinning)...

Re: A frog levitating in a strong magnetic field (1997) [video]

#16
post #11
post #9

Earlier quoted context omitted.

Is Geim the only person so far to receive a Nobel after receiving an Ig Nobel?

Yes (in either order)

Coincidentally, the most recent episode of the BBC podcast 'Discovery', part of their 'Life Scientific' series, is an extended interview with Geim:

https://www.bbc.co.uk/sounds/play/w3ct5j21

Re: A frog levitating in a strong magnetic field (1997) [video]

#17
post #8
post #5

Earlier quoted context omitted.

Just have them wear clothes made with ferromagnetic material, should have a similar effect.

Not even close but thanks for playing.

You know there's a lot of other stuff around that would have problems with huge multi-tesla fields, right? Even levitating someone with iron attached to various points on a full body rope access harness would require consideration of the wiring in the walls.

Re: A frog levitating in a strong magnetic field (1997) [video]

#18

Any chance of magnetically repelling a person from a ceiling, and/or attracting them from the floor, to create artificial gravity in space?

in probably our case, it will rip off our skin and levitate it, meanwhile our flesh false to the ground.

Re: A frog levitating in a strong magnetic field (1997) [video]

#20
post #12
post #6

Earlier quoted context omitted.

No. The magnetic field needed increases as the size of the levitated region increases. For something as big as a person the magnetic field would require magnets made of impossibly strong materials to resist the JxB forces.

So you’re saying there’s a way.

I'm not even sure a person could survive being in a magnetic field that strong. Motion of blood through the field would generate electric currents in the brain and heart (and elsewhere).
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