/r/askscience

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When a child receives an organ transplant (heart, kidneys, etc.), does the transplanted organ grow along with them as they get older? How does it know what speed to grow at?

1034 upvotes • playblu

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There are thousands of pigeons in central London. They don't seem to be eaten by birds of prey. What's preventing predation?

1034 upvotes • Harkzoa

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In the double slit experiment, why doesn't the photon hit the area between the two slits?

1034 upvotes • Neeblue

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why can animals safely drink water that humans cannot? like when did humans start to need cleaner water

1034 upvotes • LargeDoubt5348

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How do girls develop "girl hand writing" and boys develop "boy hand writing"?

1033 upvotes • [deleted]

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What experiments are currently being conducted to discover what dark matter/dark energy is?

1033 upvotes • ReesMedia

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Why does a camera exist for infrared, visible, and UV light, but we use an antenna for detecting radio waves?

1033 upvotes • tootybob

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When you cross 2 different colored lights they make a different color. (ex: red + green=yellow). Is this due to a physical effect or just due to how our eyes are made?

1032 upvotes • cheline3

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Chiasmodon, Gulper Eels, and other species of fish that ingest prey larger than themselves are probably more sluggish with the extra weight. How do they escape predators in this engorged state?

1032 upvotes • Patchman66

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If my body is already completely hydrated and I drink 16 oz of water, will I eventually pee out 16 oz of straight water (if my bladder is completely empty)?

1031 upvotes • breaking_jackpots

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
When a child receives an organ transplant (heart, kidneys, etc.), does the transplanted organ grow along with them as they get older? How does it know what speed to grow at?	1034	playblu
There are thousands of pigeons in central London. They don't seem to be eaten by birds of prey. What's preventing predation?	1034	Harkzoa
In the double slit experiment, why doesn't the photon hit the area between the two slits?	1034	Neeblue
why can animals safely drink water that humans cannot? like when did humans start to need cleaner water	1034	LargeDoubt5348
How do girls develop "girl hand writing" and boys develop "boy hand writing"?	1033	[deleted]
What experiments are currently being conducted to discover what dark matter/dark energy is?	1033	ReesMedia
Why does a camera exist for infrared, visible, and UV light, but we use an antenna for detecting radio waves?	1033	tootybob
When you cross 2 different colored lights they make a different color. (ex: red + green=yellow). Is this due to a physical effect or just due to how our eyes are made?	1032	cheline3
Chiasmodon, Gulper Eels, and other species of fish that ingest prey larger than themselves are probably more sluggish with the extra weight. How do they escape predators in this engorged state?	1032	Patchman66
If my body is already completely hydrated and I drink 16 oz of water, will I eventually pee out 16 oz of straight water (if my bladder is completely empty)?	1031	breaking_jackpots