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

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How important are the expiration dates on food really? Obviously it's certainly an issue for perishable food, but do the expectation dates really matter for dry goods and canned food?

103 upvotes

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I always start dreaming the moment I fall asleep, have lucid dreams the entire time I am asleep, and lately I have had a problem with getting "stuck" in the hypnagogic and hypnopompic stages of sleep. What is going on in the brain to cause this sort of thing?

1 upvotes

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What exactly are the differences between lightning, ball lightning, and St. Elmo's fire?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How important are the expiration dates on food really? Obviously it's certainly an issue for perishable food, but do the expectation dates really matter for dry goods and canned food?	103
I always start dreaming the moment I fall asleep, have lucid dreams the entire time I am asleep, and lately I have had a problem with getting "stuck" in the hypnagogic and hypnopompic stages of sleep. What is going on in the brain to cause this sort of thing?	1
What exactly are the differences between lightning, ball lightning, and St. Elmo's fire?	1