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

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If the Earth's atmosphere was 100% oxygen, but only 21% as dense, would it be breathable?

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What subtle effects does the rotation of the Earth have on our physiology and that of plants and animals?

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Hypothetically, is everywhere in the world vulnerable to desertification?

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Airfoils, lift, etc. Did these concepts exist before the first heavier-than-air flight, or did they only appear some years afterward?

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What would happen if a 'giant' single-celled organism (e.g. Valonia ventricosa or Chaos carolinensis) had its cell membrane pierced or ruptured?

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Are there any animals larger than insects that eat mushrooms or mold?

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Are there macroscopic organisms that eat algae or cyanobacteria? Excluding seaweed and kelp because they are macroscopic.

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Lung adaptation to new altitudes--does it last? And could somebody adapt to higher and higher places and eventually breathe at the highest mountains in the world?

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Before grasses evolved, was there more or less plant biomass than today? Were the plants then as opportunistic or successful as grasses?

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Do fish have water or air in their stomach?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If the Earth's atmosphere was 100% oxygen, but only 21% as dense, would it be breathable?	4
What subtle effects does the rotation of the Earth have on our physiology and that of plants and animals?	3
Hypothetically, is everywhere in the world vulnerable to desertification?	3
Airfoils, lift, etc. Did these concepts exist before the first heavier-than-air flight, or did they only appear some years afterward?	3
What would happen if a 'giant' single-celled organism (e.g. Valonia ventricosa or Chaos carolinensis) had its cell membrane pierced or ruptured?	3
Are there any animals larger than insects that eat mushrooms or mold?	3
Are there macroscopic organisms that eat algae or cyanobacteria? Excluding seaweed and kelp because they are macroscopic.	3
Lung adaptation to new altitudes--does it last? And could somebody adapt to higher and higher places and eventually breathe at the highest mountains in the world?	2
Before grasses evolved, was there more or less plant biomass than today? Were the plants then as opportunistic or successful as grasses?	2
Do fish have water or air in their stomach?	2