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

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How do we know that dinosaurs didn't roar, like in Jurassic Park? Would they have chirped and cawed and sang, like birds today?

4992 upvotes

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What effects did having a single super continent (Pangea) have on the evolution of life?

135 upvotes

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Why does a black hole's accretion disk (disks?) look like they're aligned with horizontal and vertical axes?

4 upvotes

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I've recently read quite a few articles stating that future generations will suffer from a lack of water. Why? Where is the water going? Isn't Earth considered a closed system?

4 upvotes

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What's the speed of a radio transmission? How about an earth to satellite transmission?

1 upvotes

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Aside from sound barriers, are there other kinds of barriers in the world that have been theorized, if not observed?

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Where in the world today would we possibly find the geographic center of Pangaea?

1 upvotes

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Let's say you've got an extremely hot room, a cool exterior, a balcony sliding door, and a standard bladed fan. What's the best way to cool down the room?

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[Astronomy?] What would planet-- say, Mars-- look like if it was terraformed for human colonization?

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What kinds of thermodynamics would we see if we rowed into this bizarre cloud formation, and held up a decent-sized flame (perhaps from a torch lighter)?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How do we know that dinosaurs didn't roar, like in Jurassic Park? Would they have chirped and cawed and sang, like birds today?	4992
What effects did having a single super continent (Pangea) have on the evolution of life?	135
Why does a black hole's accretion disk (disks?) look like they're aligned with horizontal and vertical axes?	4
I've recently read quite a few articles stating that future generations will suffer from a lack of water. Why? Where is the water going? Isn't Earth considered a closed system?	4
What's the speed of a radio transmission? How about an earth to satellite transmission?	1
Aside from sound barriers, are there other kinds of barriers in the world that have been theorized, if not observed?	1
Where in the world today would we possibly find the geographic center of Pangaea?	1
Let's say you've got an extremely hot room, a cool exterior, a balcony sliding door, and a standard bladed fan. What's the best way to cool down the room?	1
[Astronomy?] What would planet-- say, Mars-- look like if it was terraformed for human colonization?	1
What kinds of thermodynamics would we see if we rowed into this bizarre cloud formation, and held up a decent-sized flame (perhaps from a torch lighter)?	1