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

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How deep is the Sahara deserts sand, and what's at the bottom of the sand?

10992 upvotes

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Do Geothermal power plants need to be built in geologically active areas, or can you build them anywhere if you dig deep enough?

4231 upvotes

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What happened to all the Aquatic Dinosaurs?

70 upvotes

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How much effect does the concentration of Argon in Earths atmosphere have on the occurrence of lightning strikes?

8 upvotes

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When I see something that's not there(Like super-imposing an image in my own head) What is going on?

2 upvotes

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Why do vehicles need heat shielding to re-enter the atmosphere, but not to get out intact in the first place?

2 upvotes

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If the earths atmosphere had a higher oxygen content millions of years ago, what happened to all of it?

2 upvotes

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If there was a straw going from the Challenger Deep to space, would the pressure difference pump the oceans out into space?

1 upvotes

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How does menstruation work in zero gravity?

1 upvotes

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If a vehicle was travelling 99% the speed of light, and it projected a laser forward, how fast would the light from the laser be travelling, relative to the vehicle?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How deep is the Sahara deserts sand, and what's at the bottom of the sand?	10992
Do Geothermal power plants need to be built in geologically active areas, or can you build them anywhere if you dig deep enough?	4231
What happened to all the Aquatic Dinosaurs?	70
How much effect does the concentration of Argon in Earths atmosphere have on the occurrence of lightning strikes?	8
When I see something that's not there(Like super-imposing an image in my own head) What is going on?	2
Why do vehicles need heat shielding to re-enter the atmosphere, but not to get out intact in the first place?	2
If the earths atmosphere had a higher oxygen content millions of years ago, what happened to all of it?	2
If there was a straw going from the Challenger Deep to space, would the pressure difference pump the oceans out into space?	1
How does menstruation work in zero gravity?	1
If a vehicle was travelling 99% the speed of light, and it projected a laser forward, how fast would the light from the laser be travelling, relative to the vehicle?	1