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

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As a saying in my country goes, when a flesh wound with scab starts itching, it means it has started healing (or is in final stages of it). How scientifically true is this claim?

639 upvotes

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What is the purpose of sparks at base of a rocket just before launch?

37 upvotes

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Why don't horses lie down very often? How can they sleep while standing?

15 upvotes

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What are these flashing lights seen from space on earth's coastal ares?

1 upvotes

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fabric of space-time is expanding, also the matter is "embedded" on the said fabric. where am i wrong? because the matter does not seem to be expanding.

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Does gravity propagate at the speed of light too? if not then what is it's speed?

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I just saw a young cockroach casually walk inside a working microwave and then walk out as if nothing happened. How?

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Can a cockroach survive inside a working microwave?

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Is it better to drink water during having a meal or after? Does it make any difference?

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Can The One Ring's indestructibility somehow be manipulated to be a source of unlimited energy?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
As a saying in my country goes, when a flesh wound with scab starts itching, it means it has started healing (or is in final stages of it). How scientifically true is this claim?	639
What is the purpose of sparks at base of a rocket just before launch?	37
Why don't horses lie down very often? How can they sleep while standing?	15
What are these flashing lights seen from space on earth's coastal ares?	1
fabric of space-time is expanding, also the matter is "embedded" on the said fabric. where am i wrong? because the matter does not seem to be expanding.	1
Does gravity propagate at the speed of light too? if not then what is it's speed?	1
I just saw a young cockroach casually walk inside a working microwave and then walk out as if nothing happened. How?	1
Can a cockroach survive inside a working microwave?	1
Is it better to drink water during having a meal or after? Does it make any difference?	1
Can The One Ring's indestructibility somehow be manipulated to be a source of unlimited energy?	1