/u/Jakeunderscore's posts in /r/askscience

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In space, can magnetic material orbit a magnet using magnetism the same way mass orbits each other using gravity?

1351 upvotes

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If centrifugal and centripetal forces aren't real forces, then why do people consistently continue to use them to explain things?

24 upvotes

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How do scientist know the size of planets and stars when looking at them through a telescope?

1 upvotes

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Once in orbit, is it possible to change the direction of orbit?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
In space, can magnetic material orbit a magnet using magnetism the same way mass orbits each other using gravity?	1351
If centrifugal and centripetal forces aren't real forces, then why do people consistently continue to use them to explain things?	24
How do scientist know the size of planets and stars when looking at them through a telescope?	1
Once in orbit, is it possible to change the direction of orbit?	1