Standing on the Shoulders of Giants

matthen:

Spaghettification is an interesting effect of gravitational fields which causes objects to be squeezed and stretched vertically.  Here a circular ring of balls is dropped in a gravitational field, above a planet pulling them down. The balls at the top feel less of a force than the ones on the bottom, because they are further away from the planet which pulls on them.  Note that this difference in forces causes the object to be stretched, or spaghettified.  This is called a tidal force. The oceans of the Earth are pulled into an ellipsoid shape by the same effect with the Moon’s pull, causing two bulges and thus the tides.  This effect would be very strong if you ever fall into a black hole; your feet would be pulled much more strongly than your head- and you’d be stretched! (The animation doesn’t show the horizontal squeezing effect of spaghettification, which would also occur) [more] [code]

4 months ago

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    YOU.MUST.SEE.THE.VIDEO.

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    I always knew the moon was involved with the tides but I never quite got how. So I’m jut gonna put this here. And feel a...

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