/r/askscience

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Why can some meats (e.g beef) be eaten raw while others (chicken) need to be cooked?

6198 upvotes • Lechuga257

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Since water boils at lower temperatures at high altitudes, will boiling water at high elevation still sanitize it?

6194 upvotes • Prestigious_Mix1280

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If metals are such good conductors of heat, how does my cast-iron pan's handle stay relatively cool when the pan is heated?

6188 upvotes • yesua

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What would happen if the Earth's oceans were replaced with fresh water?

6183 upvotes • emergency_seal

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How much of the heat on the surface of the Earth comes from below instead of the Sun? Since temperatures go up as you dig deeper, how far down would you have to be for most of the heat be from non-solar sources?

6179 upvotes • MelsWhitePubes

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Why cannot countries mass produce their own vaccines by “copying the formulae” of the already approved Moderna and Pfizer vaccines?

6175 upvotes • lionheart2893

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Do any planets in the solar system, create tidal effects on the sun, similarly to the moon's effect of earth?

6157 upvotes • TonyTonyTanuki

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If dark matter does not interact with normal matter at all, but does interact with gravity, does that mean there are "blobs" of dark matter at the center of stars and planets?

6156 upvotes • thekingofcardboard

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How does Google search through its entire database in a fraction of a second when you search for something?

6151 upvotes • J-Roc67

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I saw on John Oliver that the WHO visited a billion houses in their effort to eradicate Smallpox. Is this possible? I can’t find any sources.

6149 upvotes • MalachiConstant7

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Why can some meats (e.g beef) be eaten raw while others (chicken) need to be cooked?	6198	Lechuga257
Since water boils at lower temperatures at high altitudes, will boiling water at high elevation still sanitize it?	6194	Prestigious_Mix1280
If metals are such good conductors of heat, how does my cast-iron pan's handle stay relatively cool when the pan is heated?	6188	yesua
What would happen if the Earth's oceans were replaced with fresh water?	6183	emergency_seal
How much of the heat on the surface of the Earth comes from below instead of the Sun? Since temperatures go up as you dig deeper, how far down would you have to be for most of the heat be from non-solar sources?	6179	MelsWhitePubes
Why cannot countries mass produce their own vaccines by “copying the formulae” of the already approved Moderna and Pfizer vaccines?	6175	lionheart2893
Do any planets in the solar system, create tidal effects on the sun, similarly to the moon's effect of earth?	6157	TonyTonyTanuki
If dark matter does not interact with normal matter at all, but does interact with gravity, does that mean there are "blobs" of dark matter at the center of stars and planets?	6156	thekingofcardboard
How does Google search through its entire database in a fraction of a second when you search for something?	6151	J-Roc67
I saw on John Oliver that the WHO visited a billion houses in their effort to eradicate Smallpox. Is this possible? I can’t find any sources.	6149	MalachiConstant7