/u/nipsu333's posts in /r/askscience

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Two objects leave Earth at the same time for Alpha Centauri 4,37 lightyears away. The other object travels at 99,9% speed of light, and the other at 10% c. Considering time dilation, how far apart in time do they arrive?

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How much energy is required to raise the global temperature by 1 °c? And what is the source of this energy?

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Time dilation: 2 spaceships travel to andromeda galaxy, the other at 99% of speed light, the other at 10,000 mph, how far apart in time do they arrive?

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Since the positions of the magnetic poles change through time, will the aurora borealis be seen on the equator at some point in the future?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Two objects leave Earth at the same time for Alpha Centauri 4,37 lightyears away. The other object travels at 99,9% speed of light, and the other at 10% c. Considering time dilation, how far apart in time do they arrive?	995
How much energy is required to raise the global temperature by 1 °c? And what is the source of this energy?	1
Time dilation: 2 spaceships travel to andromeda galaxy, the other at 99% of speed light, the other at 10,000 mph, how far apart in time do they arrive?	1
Since the positions of the magnetic poles change through time, will the aurora borealis be seen on the equator at some point in the future?	1