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

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[Planetary Sciences] Why is it that sometimes lightnings have no sound? And why does this seem to happen only when there is no rain?

27 upvotes

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[Mathematics] (Also physics) Why can one define parallel transport without a metric? Is there a proof that it is a diffeomorphism invariant?

25 upvotes

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Which is the furthest star we can see with our naked eye? How does that compare with the size of the milky way?

23 upvotes

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[Mathematics] Equivalent of the maximal torus theorem for finite groups?

12 upvotes

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Is there any result related to typical overlaps in orbits of Lie group irreps?

9 upvotes

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[Mathematics] The l_2 norm can be defined in a basis independent fashion, can other l_p norms be defined in this way?

9 upvotes

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Equivalent of Witt's theorem but for over-complete sets of vectors?

8 upvotes

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[Physics] Why does Nernst's theorem imply that one may not attain T=0 in a finite amount of steps?

6 upvotes

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[Mathematics] Are there vector spaces where no discrete set of vectors form a basis?

6 upvotes

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[Mathematics] How 'twisted and contorted' can the symplectic image of a sphere be?

5 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
[Planetary Sciences] Why is it that sometimes lightnings have no sound? And why does this seem to happen only when there is no rain?	27
[Mathematics] (Also physics) Why can one define parallel transport without a metric? Is there a proof that it is a diffeomorphism invariant?	25
Which is the furthest star we can see with our naked eye? How does that compare with the size of the milky way?	23
[Mathematics] Equivalent of the maximal torus theorem for finite groups?	12
Is there any result related to typical overlaps in orbits of Lie group irreps?	9
[Mathematics] The l_2 norm can be defined in a basis independent fashion, can other l_p norms be defined in this way?	9
Equivalent of Witt's theorem but for over-complete sets of vectors?	8
[Physics] Why does Nernst's theorem imply that one may not attain T=0 in a finite amount of steps?	6
[Mathematics] Are there vector spaces where no discrete set of vectors form a basis?	6
[Mathematics] How 'twisted and contorted' can the symplectic image of a sphere be?	5