/r/askscience

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If fat is hydrophobic and milk is 87% water, how is there fat in milk, as in how it doesn't glob up and float to the top of the cup/ container?

6955 upvotes • [deleted]

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Why was the number 299,792,458 chosen as the definiton of a metre instead of a more rounded off number like 300,000,000?

6953 upvotes • Ciltan

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What makes a food 'filling'? Is it just calories?

6951 upvotes • dandidin

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Is my stomach ever completely empty? And about how much fluid is in there without and food or drink?

6942 upvotes • sleepless_mc

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Do firefighters have to tackle electric car fires differently?

6938 upvotes • cantab314

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If all the polar ice caps melted, would the ocean become less salty?

6933 upvotes • oscisq

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Since batteries are essentially reduction-oxidation reactions, why do most batteries say not to charge them since this is just reversing the reaction? What is preventing you from charging them anyway?

6931 upvotes • NateNate60

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What does a whitening toothpaste contain that is responsible for whitening teeth?

6928 upvotes • M4st3r_r

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What organ warms the body? Or just what in general?

6927 upvotes • SimonVanc

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How do scientists make sure that the light they are getting is from that particular heavenly body and not a nearby star, like the Sun?

6925 upvotes • muzkahn

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
If fat is hydrophobic and milk is 87% water, how is there fat in milk, as in how it doesn't glob up and float to the top of the cup/ container?	6955	[deleted]
Why was the number 299,792,458 chosen as the definiton of a metre instead of a more rounded off number like 300,000,000?	6953	Ciltan
What makes a food 'filling'? Is it just calories?	6951	dandidin
Is my stomach ever completely empty? And about how much fluid is in there without and food or drink?	6942	sleepless_mc
Do firefighters have to tackle electric car fires differently?	6938	cantab314
If all the polar ice caps melted, would the ocean become less salty?	6933	oscisq
Since batteries are essentially reduction-oxidation reactions, why do most batteries say not to charge them since this is just reversing the reaction? What is preventing you from charging them anyway?	6931	NateNate60
What does a whitening toothpaste contain that is responsible for whitening teeth?	6928	M4st3r_r
What organ warms the body? Or just what in general?	6927	SimonVanc
How do scientists make sure that the light they are getting is from that particular heavenly body and not a nearby star, like the Sun?	6925	muzkahn