New answers tagged biology
2
The answer to the valve-question,1 according Pilotfriend, seems to be the "floppy walled Eustachian tubes".
During ascent the gas (air) in the middle ear cavity expands and a small amount of pressure builds up against the ear drum causing them to bulge outwards ever so slightly (that ‘fullness’ you feel in your ears just before they ‘Pop’). This pressure ...
3
I'm only going to try to address the question of DC fields.
Medical MRI uses uniform fields of about 0.5 to 3.0 T. In a head MRI, the Lorentz force on ions in the brain can cause neurological effects such as vertigo. I've heard that this shows up in particular when the patient moves his head.
Here is a famous picture of a frog being levitated by a 16 T ...
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One simple approximation that you could make is to assume that the human body is made of water. Then you can reduce your question to: what happens to water molecules in a magnetic field. Consequently, you would have to ask how you can break the Van der Waals Bond in water with a magnetic field.
I think here you would have to differentiate between a static ...
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