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

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Why do Chlorophyll and Haemoglobin molecules look so similar?

1544 upvotes

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Can space-time warp in such a way as to allow me to start a journey and then return as my mirror image?

85 upvotes

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Why do girls have periods? More specifically, why does the body expel the stuff rather than just reabsorb it?

11 upvotes

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How does alpha or β+ decay effect an atoms bonding?

9 upvotes

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Is there any difference between an electron and a black hole with the same charge and mass as an electron?

2 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Why do Chlorophyll and Haemoglobin molecules look so similar?	1544
Can space-time warp in such a way as to allow me to start a journey and then return as my mirror image?	85
Why do girls have periods? More specifically, why does the body expel the stuff rather than just reabsorb it?	11
How does alpha or β+ decay effect an atoms bonding?	9
Is there any difference between an electron and a black hole with the same charge and mass as an electron?	2