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

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Did the LIGO discovery of gravitational waves tell us anything that we couldn't have predicted from general relativity anyway?

11 upvotes

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How does a homing pigeon decide on a particular location as its "home"? Can they change "homes"?

11 upvotes

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Why do greenhouse gases work? As far as I understand, Earth's temperature emission into space is supposed to only depend on its temperature. Why is reflecting heat back to Earth relevant? Shouldn't the gases themselves heat up and start radiating?

11 upvotes

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Some species don't breed in captivity. Why? What's keeping them?

10 upvotes

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Why is a bigger, deeper neural network more prone to overfitting?

9 upvotes

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When talking about chirality of molecules, is the choice of which one is left-handed and which one is right-handed arbitrary as long as it's consistent? Or is there a way to look at a molecule and tell that it is definitely right-handed?

9 upvotes

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What exactly changes in a person's cognition and behaviour after a lobotomy? How do they live out their lives post-operation? The Wikipedia page is pretty abstract.

8 upvotes

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Do electrons have a directional orientation, or are they spherically symmetrical?

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Scott Aaronson: "...the ability to solve NP-complete problems would give us 'godlike' powers - arguably, even more so than the ability to transmit superluminal signals or reverse the Second Law of Thermodynamics." <- how come?

8 upvotes

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I flip a fair coin over and over. I stop after the proportion of heads among all flips exceeds 80%, but not earlier than after 10 flips. What is the expected time before I stop?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Did the LIGO discovery of gravitational waves tell us anything that we couldn't have predicted from general relativity anyway?	11
How does a homing pigeon decide on a particular location as its "home"? Can they change "homes"?	11
Why do greenhouse gases work? As far as I understand, Earth's temperature emission into space is supposed to only depend on its temperature. Why is reflecting heat back to Earth relevant? Shouldn't the gases themselves heat up and start radiating?	11
Some species don't breed in captivity. Why? What's keeping them?	10
Why is a bigger, deeper neural network more prone to overfitting?	9
When talking about chirality of molecules, is the choice of which one is left-handed and which one is right-handed arbitrary as long as it's consistent? Or is there a way to look at a molecule and tell that it is definitely right-handed?	9
What exactly changes in a person's cognition and behaviour after a lobotomy? How do they live out their lives post-operation? The Wikipedia page is pretty abstract.	8
Do electrons have a directional orientation, or are they spherically symmetrical?	8
Scott Aaronson: "...the ability to solve NP-complete problems would give us 'godlike' powers - arguably, even more so than the ability to transmit superluminal signals or reverse the Second Law of Thermodynamics." <- how come?	8
I flip a fair coin over and over. I stop after the proportion of heads among all flips exceeds 80%, but not earlier than after 10 flips. What is the expected time before I stop?	8