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

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Given how massive space is, with the Milky Way and Andromeda Galaxy on a course toward each other is it even likely there will be 'collisions' of objects?

753 upvotes

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If a room was perfectly sealed from all external forces, would the air inside naturally settle with the heavier compounds to the bottom and the lighter to the top, or is air always continuously mixing?

20 upvotes

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Is it possible for 2 separate species to eventually evolve into the same species again?

8 upvotes

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Although they are totally different electromagnetic radiations, would sunscreen protect you, even slightly, from nuclear radiation as well as ultraviolet?

5 upvotes

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Why does my fridge and freezer door seemingly have more suction right after it is closed?

1 upvotes

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If time were to pause, what impact would this have on light properties? Would it be complete darkness?

1 upvotes

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So is faeces already log-shaped in your large intestine or does it only come out that way because your anus acts like a piping bag?

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Why can ships pass safely through the Antarctic ice, almost plowing their way through, though the Titanic sank after hitting one iceberg?

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If frequency of soundwaves determine pitch, and pressure determines loudness, why don't all C notes for example sound the same from different instruments? Is there another variable which allows us to determine the source of the sound?

1 upvotes

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Why is a fridge door harder to open immediately after closing, as opposed to if it had been shut for a while?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Given how massive space is, with the Milky Way and Andromeda Galaxy on a course toward each other is it even likely there will be 'collisions' of objects?	753
If a room was perfectly sealed from all external forces, would the air inside naturally settle with the heavier compounds to the bottom and the lighter to the top, or is air always continuously mixing?	20
Is it possible for 2 separate species to eventually evolve into the same species again?	8
Although they are totally different electromagnetic radiations, would sunscreen protect you, even slightly, from nuclear radiation as well as ultraviolet?	5
Why does my fridge and freezer door seemingly have more suction right after it is closed?	1
If time were to pause, what impact would this have on light properties? Would it be complete darkness?	1
So is faeces already log-shaped in your large intestine or does it only come out that way because your anus acts like a piping bag?	1
Why can ships pass safely through the Antarctic ice, almost plowing their way through, though the Titanic sank after hitting one iceberg?	1
If frequency of soundwaves determine pitch, and pressure determines loudness, why don't all C notes for example sound the same from different instruments? Is there another variable which allows us to determine the source of the sound?	1
Why is a fridge door harder to open immediately after closing, as opposed to if it had been shut for a while?	1