/r/askscience

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Does a person using a skateboard expend less energy than a walking person traveling the same distance?

3524 upvotes • FalconAF

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We are scientists from the Society of Vertebrate Paleontology coming to you from our annual meeting in Brisbane, Australia. We study fossils. Ask Us Anything!

3523 upvotes • VertPaleoAMA

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How does the language in which we think change?

3522 upvotes • mA1yA

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Would it be possible with modern technology to produce a sword that would handily deal with medieval swords and armor?

3521 upvotes • MrDowntempo

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Why does beta plus (β+) decay happen in proton-proton chain reactions; why don't the two protons just form helium instead of deuterium?

3520 upvotes • _CarbonBasedLifeForm

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At what rate, if any, does the earth produce fossil fuels?

3519 upvotes • darthvalium

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Do astronauts on extended missions ever develop illnesses/head colds while on the job?

3515 upvotes • _MostlyHarmless

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If two ships travel at higher then 0.5C away from each other, would light from one ever reach the other?

3515 upvotes • Mashanny

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I noticed Nice, France looks very tropical. It is at 43 degrees N. I'm in Portland, ME...hardly tropical at 43 degrees N. How is this? Is it because of the Mediterranean?

3514 upvotes • portlandmainah

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Can planets orbit twin star systems?

3514 upvotes • JoelWHarper

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Does a person using a skateboard expend less energy than a walking person traveling the same distance?	3524	FalconAF
We are scientists from the Society of Vertebrate Paleontology coming to you from our annual meeting in Brisbane, Australia. We study fossils. Ask Us Anything!	3523	VertPaleoAMA
How does the language in which we think change?	3522	mA1yA
Would it be possible with modern technology to produce a sword that would handily deal with medieval swords and armor?	3521	MrDowntempo
Why does beta plus (β+) decay happen in proton-proton chain reactions; why don't the two protons just form helium instead of deuterium?	3520	_CarbonBasedLifeForm
At what rate, if any, does the earth produce fossil fuels?	3519	darthvalium
Do astronauts on extended missions ever develop illnesses/head colds while on the job?	3515	_MostlyHarmless
If two ships travel at higher then 0.5C away from each other, would light from one ever reach the other?	3515	Mashanny
I noticed Nice, France looks very tropical. It is at 43 degrees N. I'm in Portland, ME...hardly tropical at 43 degrees N. How is this? Is it because of the Mediterranean?	3514	portlandmainah
Can planets orbit twin star systems?	3514	JoelWHarper