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

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Earth makes an elliptical orbit and on december 22nd our planet lies closer to the sun than on june 21st. Does that mean summers are warmer in the southern hemisphere?

519 upvotes

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Is mountain air really the healthiest/least polluted air?

170 upvotes

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Interferon is produced by cells when they are infected by virusses and other intruders, why don't cells always use this form of protection?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Earth makes an elliptical orbit and on december 22nd our planet lies closer to the sun than on june 21st. Does that mean summers are warmer in the southern hemisphere?	519
Is mountain air really the healthiest/least polluted air?	170
Interferon is produced by cells when they are infected by virusses and other intruders, why don't cells always use this form of protection?	1