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

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If lower gravity means lower atmospheric pressure, is flight easier on a smaller Earth-like planet or a larger one?

983 upvotes

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If the "fuel adds weight which needs more fuel" problem means rockets already require 20 times as much weight in fuel as the payload just to get into low earth orbit, would a slightly larger planet mean civilizations can't get to space? What size planet is the limit?

29 upvotes

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How can sound/pressure waves diffract in an ideal gas?

6 upvotes

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How would a layredditor stain microscope slides

3 upvotes

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Would carbon black from "rolling coal" be better for climate change than CO2 released from properly combusting the fuel?

1 upvotes

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Why sode froth less if poured into the liquid instead of down the side of the glass, but beer is the opposite?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If lower gravity means lower atmospheric pressure, is flight easier on a smaller Earth-like planet or a larger one?	983
If the "fuel adds weight which needs more fuel" problem means rockets already require 20 times as much weight in fuel as the payload just to get into low earth orbit, would a slightly larger planet mean civilizations can't get to space? What size planet is the limit?	29
How can sound/pressure waves diffract in an ideal gas?	6
How would a layredditor stain microscope slides	3
Would carbon black from "rolling coal" be better for climate change than CO2 released from properly combusting the fuel?	1
Why sode froth less if poured into the liquid instead of down the side of the glass, but beer is the opposite?	1