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

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[AI] what do AI researchers or programmers mean when they say "human level intelligence" or "this machine is about as smart as a dog"?

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Are there a possible set of conditions (size, proximity, density, etc) where if another planet was positioned in proper relation to earth someone could throw a baseball from earth to this hypothetical planet? (without being torn apart by tidal forces)

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What is the difference between Planck and quantum sizes? Don't they both mean 'smallest possible'?

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What will all the plastic litter look like millions of years? Will it turn back into patrolium or something? What would future archeologists think of this era?

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assuming the many-worlds hypothesis is correct, and each and every time a 'division' is created does that mean there would be unlimited untouched empty universes?

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I know we haven't quite figured out what gravitons actually are but assuming the exist how can gravity be a warping of spacetime and a partical at the same time? I thought gravity was just the amount of warping based on mass

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Since sunscreen is dark or even black to UV light does that mean it obsorbs it and makes you feel hotter?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
[AI] what do AI researchers or programmers mean when they say "human level intelligence" or "this machine is about as smart as a dog"?	1
Are there a possible set of conditions (size, proximity, density, etc) where if another planet was positioned in proper relation to earth someone could throw a baseball from earth to this hypothetical planet? (without being torn apart by tidal forces)	1
What is the difference between Planck and quantum sizes? Don't they both mean 'smallest possible'?	1
What will all the plastic litter look like millions of years? Will it turn back into patrolium or something? What would future archeologists think of this era?	1
assuming the many-worlds hypothesis is correct, and each and every time a 'division' is created does that mean there would be unlimited untouched empty universes?	1
I know we haven't quite figured out what gravitons actually are but assuming the exist how can gravity be a warping of spacetime and a partical at the same time? I thought gravity was just the amount of warping based on mass	1
Since sunscreen is dark or even black to UV light does that mean it obsorbs it and makes you feel hotter?	1