/u/[deleted]'s posts in /r/askscience

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Why do Asians have dry ear 'powder' and Westerners have wet ear 'wax'?

982 upvotes

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If a food animal had a malignant tumor in its muscle, that was not really where a butcher could see, and that tumor got put into ground meat, would it be harmful to eat?

965 upvotes

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If plant life existed on mars in the past, would there still be coal/oil under the surface today?

958 upvotes

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The number of colours a human can distinguish is estimated to be in the range of 1e6 to 1e7, how is this range estimated?

951 upvotes

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As far as science can tell, how nearby is dire fossil fuel shortage?

950 upvotes

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What determines when/where a branch will grow on a tree?

943 upvotes

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Why do we have grooves on the roof of our mouths and what is their purpose?

933 upvotes

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Do other species of animals have "serial killers" in their populations as we know them?

918 upvotes

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If there was a total meltdown of society, how long would the GPS system continue to work?

896 upvotes

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Instead of large solar arrays, why didn't NASA send up a small reactor for the ISS?

893 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why do Asians have dry ear 'powder' and Westerners have wet ear 'wax'?	982
If a food animal had a malignant tumor in its muscle, that was not really where a butcher could see, and that tumor got put into ground meat, would it be harmful to eat?	965
If plant life existed on mars in the past, would there still be coal/oil under the surface today?	958
The number of colours a human can distinguish is estimated to be in the range of 1e6 to 1e7, how is this range estimated?	951
As far as science can tell, how nearby is dire fossil fuel shortage?	950
What determines when/where a branch will grow on a tree?	943
Why do we have grooves on the roof of our mouths and what is their purpose?	933
Do other species of animals have "serial killers" in their populations as we know them?	918
If there was a total meltdown of society, how long would the GPS system continue to work?	896
Instead of large solar arrays, why didn't NASA send up a small reactor for the ISS?	893