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Old 02-25-2020, 06:47 AM
 
Location: Fortaleza, Brazil
2,828 posts, read 4,872,540 times
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A magnet placed a few centimeters above a piece of iron can make that piece of iron move in the opposite direction of the "gravitational attracttion" from Earth. The piece of iron can move "up" instead of moving "down".

How is that related to special relativity?

If the "attraction" of the piece of iron in the direction of Earth's core by the planet's gravity is actually a "distortion in spacetime", then what happened to spacetime when the magnet was placed a few centimeters above the piece of iron?

Is there any relation between magnetic attraction and "spacetime distortion"?
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Old 02-25-2020, 07:02 AM
 
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https://van.physics.illinois.edu/qa/listing.php?id=225

The forces and distances you talk about are so small that any relativistic effect is also extremely small.
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Old 02-29-2020, 08:28 AM
 
Location: Seattle
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Mass is what creates changes to spacetime, so magnetically attracting addition mass to a locale would increase its (very tiny) gravity well.

In Superstring Theory, the electromagnetic field uses its own (compactified) dimension(s).
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