/u/Prof_Acorn's posts in /r/askscience

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Why does there seem to be an unusual amount of dangerous species concentrated in Australia?

8 upvotes

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How can liquid water exist on the surface of mars if the atmospheric pressure is below water's triple point?

2 upvotes

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Is it possible to "microsleep" by resting your eyes and laying still for a few minutes, even if you don't fully fall asleep?

1 upvotes

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Would a feather dropped in the upper atmosphere burn up on re-entry?

1 upvotes

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Is the propagation of gravity slowed by gravity? Or, does the propagation of gravity follow the curvature of spacetime?

1 upvotes

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How does smoke kill bacteria?

1 upvotes

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If I fall asleep with one hand in front of a spaceheater, and the other in a bucket of cool water, will I overheat, go hypothermic, burn one hand and frostbite the other, will the water in the bucket raise to 98.6, something else?

1 upvotes

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Is the brain's energy consumption rate variable? If so, is that variability based on critical thinking, emotional catharsis, lateral thinking, something else?

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Why does isolation "hurt"? Does it have to do with a reduction in oxytocin?

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Do actions occurring in dreams (e.g., a hug) release the equivalent chemicals in the brain that they would in real life (e.g., oxytocin)?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why does there seem to be an unusual amount of dangerous species concentrated in Australia?	8
How can liquid water exist on the surface of mars if the atmospheric pressure is below water's triple point?	2
Is it possible to "microsleep" by resting your eyes and laying still for a few minutes, even if you don't fully fall asleep?	1
Would a feather dropped in the upper atmosphere burn up on re-entry?	1
Is the propagation of gravity slowed by gravity? Or, does the propagation of gravity follow the curvature of spacetime?	1
How does smoke kill bacteria?	1
If I fall asleep with one hand in front of a spaceheater, and the other in a bucket of cool water, will I overheat, go hypothermic, burn one hand and frostbite the other, will the water in the bucket raise to 98.6, something else?	1
Is the brain's energy consumption rate variable? If so, is that variability based on critical thinking, emotional catharsis, lateral thinking, something else?	1
Why does isolation "hurt"? Does it have to do with a reduction in oxytocin?	1
Do actions occurring in dreams (e.g., a hug) release the equivalent chemicals in the brain that they would in real life (e.g., oxytocin)?	1