phildonnia
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This was covered in Popular Mechanics last year.
A subsequent letter to the editor explaining that compressing metal was impossible elicited a further explanation: The total volume of the coins remains the same; they become thicker as they get smaller.
A subsequent letter to the editor explaining that compressing metal was impossible elicited a further explanation: The total volume of the coins remains the same; they become thicker as they get smaller.
Johnny Pneumatic
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All I want to know is can it shrink heads?
Crotchety Englishman
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high magnetic fields
The forces generated by pulse magnets are huge, even those generated by the induced currents are significant. I've dug pieces of copper wire out of concrete walls after a magnet failure.
The walls of the UNSW lab in Sydney were reinforced with armor from a scrapped naval destroyer so that it could withstand a 2 pound object at twice (maybe three times) the speed of sound flung out by magnetic forces.
While the forces drop off pretty quickly with increasing radius, they are still significant enough to give cause for concern when planning a facility. One check we always had to make was whether there was steel reinforcement in the concrete floors. If the magnet decided it was going to align itself with some reinforcement....
You could always hear a pulse because all of the metallic equipment in the cell would give a little shudder.
On the other hand I never noted any biologic effects of pulsed field.
The forces generated by pulse magnets are huge, even those generated by the induced currents are significant. I've dug pieces of copper wire out of concrete walls after a magnet failure.
The walls of the UNSW lab in Sydney were reinforced with armor from a scrapped naval destroyer so that it could withstand a 2 pound object at twice (maybe three times) the speed of sound flung out by magnetic forces.
While the forces drop off pretty quickly with increasing radius, they are still significant enough to give cause for concern when planning a facility. One check we always had to make was whether there was steel reinforcement in the concrete floors. If the magnet decided it was going to align itself with some reinforcement....
You could always hear a pulse because all of the metallic equipment in the cell would give a little shudder.
On the other hand I never noted any biologic effects of pulsed field.
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