/u/happy_otter's posts

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Swallows can fly at great heights to feed on insects, but why do the insects themselves fly so high, and what do they feed on?

810 upvotes • r/askscience

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When did man first realize there are solar time differences across the globe? Was this ever relevant as proof that the earth is a sphere?

18 upvotes • r/askscience

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A question about unexploded ordnance (WWII): how come it was not dealed with at the time or at the end of the war?

4 upvotes • r/AskHistorians

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"When the swallows fly high, the weather will be dry" - Swallows can fly at great heights to feed on insects, but why do the insects themselves fly so high, and what do they feed on?

1 upvotes • r/askscience

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Since nearly all black market activities rely on cash, why aren't governments more proactive in trying to create cash-free economies? Would this be an effective strategy, and have there been efforts in that direction?

1 upvotes • r/askscience

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How do members of species with strong sexual dimorphism know how to recognize their counterparts?

1 upvotes • r/askscience

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How do members of species with strong sexual dimorphism know how to recognize their counterparts?

1 upvotes • r/askscience

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When did man first realize there are solar time differences across the globe? Was this ever relevant as proof that the earth is a sphere?

1 upvotes • r/askscience

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Why are nocturnal insects attracted by artificial lights given that they normally dislike daylight?

1 upvotes • r/askscience

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Why does lemon (or other citrus fruits) taste refreshing?

1 upvotes • r/askscience

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Title	Upvotes	Subreddit	Mark as read	Favorited	Rating	Add to a list
Swallows can fly at great heights to feed on insects, but why do the insects themselves fly so high, and what do they feed on?	810	askscience
When did man first realize there are solar time differences across the globe? Was this ever relevant as proof that the earth is a sphere?	18	askscience
A question about unexploded ordnance (WWII): how come it was not dealed with at the time or at the end of the war?	4	AskHistorians
"When the swallows fly high, the weather will be dry" - Swallows can fly at great heights to feed on insects, but why do the insects themselves fly so high, and what do they feed on?	1	askscience
Since nearly all black market activities rely on cash, why aren't governments more proactive in trying to create cash-free economies? Would this be an effective strategy, and have there been efforts in that direction?	1	askscience
How do members of species with strong sexual dimorphism know how to recognize their counterparts?	1	askscience
How do members of species with strong sexual dimorphism know how to recognize their counterparts?	1	askscience
When did man first realize there are solar time differences across the globe? Was this ever relevant as proof that the earth is a sphere?	1	askscience
Why are nocturnal insects attracted by artificial lights given that they normally dislike daylight?	1	askscience
Why does lemon (or other citrus fruits) taste refreshing?	1	askscience