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

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In 2010AD, chapter 13, Clarke says ' even now ... no one really understood why the four giant satellites (of Jupiter) differed so widely from one another'. Do we understand now?

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How can astronomers tell a planet's mass and distance from its star by the gravitational effect? Couldn't the same effect be produced by a different organisation of the planetary system?

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Why is some energy matter and other energy energy?

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If you were able to experience life at 200 times the speed of everyone else and you fell off a building it would seem that you were floating gently to earth. Would the impact still kill you?

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Why don't little dogs get sore throats?

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If spacetime is constantly expanding, does that mean i'm expanding too?

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White skin seems to be an advantage in a snow covered environment, why don't the aboriginal residents of Siberia have the same time of skin as those of northern Europe?

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Why is there no equivalent to the bends for descending?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
In 2010AD, chapter 13, Clarke says ' even now ... no one really understood why the four giant satellites (of Jupiter) differed so widely from one another'. Do we understand now?	3
How can astronomers tell a planet's mass and distance from its star by the gravitational effect? Couldn't the same effect be produced by a different organisation of the planetary system?	1
Why is some energy matter and other energy energy?	1
If you were able to experience life at 200 times the speed of everyone else and you fell off a building it would seem that you were floating gently to earth. Would the impact still kill you?	1
Why don't little dogs get sore throats?	1
If spacetime is constantly expanding, does that mean i'm expanding too?	1
White skin seems to be an advantage in a snow covered environment, why don't the aboriginal residents of Siberia have the same time of skin as those of northern Europe?	1
Why is there no equivalent to the bends for descending?	0