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

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If camera lenses are circular, why do they produce a rectangular image?

8389 upvotes

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If we somehow managed to dig a fairly wide hole straight through the earth’s core and back out the other side without anything that entered it burning up and without magma going into any part of the hole, would a dropped item have enough momentum to come out the other side?

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What is the most advanced form of communication found in animals besides ourselves that we know of?

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If outside of the universe is a big infinite void, what’s outside that and how did it get there?

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Are bugs and insects self aware? What evidence suggests they are/aren’t?

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What do blind people “see”?

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Why is it harder to detect which direction a high pitched sound is coming from, compared to lower frequency sounds with which you can easily find the source?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If camera lenses are circular, why do they produce a rectangular image?	8389
If we somehow managed to dig a fairly wide hole straight through the earth’s core and back out the other side without anything that entered it burning up and without magma going into any part of the hole, would a dropped item have enough momentum to come out the other side?	1
What is the most advanced form of communication found in animals besides ourselves that we know of?	1
If outside of the universe is a big infinite void, what’s outside that and how did it get there?	1
Are bugs and insects self aware? What evidence suggests they are/aren’t?	1
What do blind people “see”?	1
Why is it harder to detect which direction a high pitched sound is coming from, compared to lower frequency sounds with which you can easily find the source?	1