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

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Why can excited monoatomic gases (eg neon) emit photons but not homonuclear molecules (eg dinitrogen)?

51 upvotes

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(rocket fuel science) Why is it crucial that UDMH be unsymmetrical?

13 upvotes

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In proton collisions in supercolliders, do all the quarks 'collide' or do only some of the quarks play a major role? (ie what's the reaction cross-section like?)

10 upvotes

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Microwave magnetrons, how fast is the rise/fall time and what is a practical cycle length?

6 upvotes

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What was the evolutionary pressure to evolve blood groups?

5 upvotes

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why are GPS satellites put in LEO and not geostationary?

4 upvotes

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is photosynthesis efficient under extremely dim light?

2 upvotes

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Why is silver chloride so insoluble?

2 upvotes

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Why does aqua gel beads form this shape when rehydrating?

1 upvotes

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[botany] Do some plants need falling rain?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why can excited monoatomic gases (eg neon) emit photons but not homonuclear molecules (eg dinitrogen)?	51
(rocket fuel science) Why is it crucial that UDMH be unsymmetrical?	13
In proton collisions in supercolliders, do all the quarks 'collide' or do only some of the quarks play a major role? (ie what's the reaction cross-section like?)	10
Microwave magnetrons, how fast is the rise/fall time and what is a practical cycle length?	6
What was the evolutionary pressure to evolve blood groups?	5
why are GPS satellites put in LEO and not geostationary?	4
is photosynthesis efficient under extremely dim light?	2
Why is silver chloride so insoluble?	2
Why does aqua gel beads form this shape when rehydrating?	1
[botany] Do some plants need falling rain?	1