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

Year:

Only show posts with narrations

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

Mark as read: Add to a list

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

Mark as read: Add to a list

"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

Mark as read: Add to a list

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

Mark as read: Add to a list

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

1 upvotes

Mark as read: Add to a list

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

1 upvotes

Mark as read: Add to a list

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

Mark as read: Add to a list

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

1 upvotes

Mark as read: Add to a list

What was proto-writing, how do we know it is not a real script, and what did people use it for?

1 upvotes

Mark as read: Add to a list

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

1 upvotes

Mark as read: Add to a list

Title	Upvotes	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
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
"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
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
How do members of species with strong sexual dimorphism know how to recognize their counterparts?	1
How do members of species with strong sexual dimorphism know how to recognize their counterparts?	1
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
Why are nocturnal insects attracted by artificial lights given that they normally dislike daylight?	1
What was proto-writing, how do we know it is not a real script, and what did people use it for?	1
Why does lemon (or other citrus fruits) taste refreshing?	1