/r/askscience

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What are the oldest species that we could (in theory) bring back from extinction, given the half-life of DNA?

1089 upvotes • ryan-a

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What's the implication of the mass of a proton?

1089 upvotes • mc8675309

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If NASA was to find fossil remains of plants, dinosaurs or insects on Mars how would they go about testing them to find out how long they had been there for?

1088 upvotes • bantesting666

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Is breakfast really the most important meal of the day? Why/Why not? How long after waking is the ideal "breakfast time"?

1088 upvotes • jzoidbergj

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If you were hit by an EMP pulse, would you notice?

1088 upvotes • ElectronicSamurai

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Why were so many dinosaurs bipedal, but now humans and birds are pretty much the only bipedal creatures?

1088 upvotes • vwbusfool

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In numeral systems with a base other than ten, are prime numbers the same as they are in base ten?

1088 upvotes • sinistimus

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how does over-the-horizon radar work? bounces off the ionosphere like shortwave radio?

1087 upvotes • Vapes_THC_all_day

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Why are our veins asymmetrical?

1086 upvotes • irwin1003

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Are Wormholes real?

1086 upvotes • seminally_me

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
What are the oldest species that we could (in theory) bring back from extinction, given the half-life of DNA?	1089	ryan-a
What's the implication of the mass of a proton?	1089	mc8675309
If NASA was to find fossil remains of plants, dinosaurs or insects on Mars how would they go about testing them to find out how long they had been there for?	1088	bantesting666
Is breakfast really the most important meal of the day? Why/Why not? How long after waking is the ideal "breakfast time"?	1088	jzoidbergj
If you were hit by an EMP pulse, would you notice?	1088	ElectronicSamurai
Why were so many dinosaurs bipedal, but now humans and birds are pretty much the only bipedal creatures?	1088	vwbusfool
In numeral systems with a base other than ten, are prime numbers the same as they are in base ten?	1088	sinistimus
how does over-the-horizon radar work? bounces off the ionosphere like shortwave radio?	1087	Vapes_THC_all_day
Why are our veins asymmetrical?	1086	irwin1003
Are Wormholes real?	1086	seminally_me