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

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If a collapsing universe ends in a Big Crunch that causes a Big Bang and subsequently a new universe, is any energy lost? If so, where does it get lost to? If not (supposing the crunch>bang>crunch theory is true), does this mean that the universe itself is a Perpetual Motion Machine?

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My girlfriend is 21. Her mother and grandmother both have Osteoporosis. What should she be doing at this point in her life to mitigate the problem?

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What is happening when you delay eating and suddenly you aren't hungry anymore? What about when you delay pooping and suddenly you aren't clenching anymore? Or, when you delay sleeping and suddenly you aren't tired anymore?

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Dangers of 'undervolting' and 'underamping'?

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Can someone resolve the "Starvation Mode Myth" once and for all?

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If all humans suddenly vanished, when would electricity stop powering our homes?

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Are there specific, repeatable tasks you can engage in early in life that are proven to reduce risk of dementia?

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Could humans breed any Mammalian species for domestication and select for preferable traits, or are Canines genetically unique?

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How long does a calorie deficit last?

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When there are no more sentient beings around to experience time, will time still "pass"?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If a collapsing universe ends in a Big Crunch that causes a Big Bang and subsequently a new universe, is any energy lost? If so, where does it get lost to? If not (supposing the crunch>bang>crunch theory is true), does this mean that the universe itself is a Perpetual Motion Machine?	2
My girlfriend is 21. Her mother and grandmother both have Osteoporosis. What should she be doing at this point in her life to mitigate the problem?	2
What is happening when you delay eating and suddenly you aren't hungry anymore? What about when you delay pooping and suddenly you aren't clenching anymore? Or, when you delay sleeping and suddenly you aren't tired anymore?	2
Dangers of 'undervolting' and 'underamping'?	1
Can someone resolve the "Starvation Mode Myth" once and for all?	1
If all humans suddenly vanished, when would electricity stop powering our homes?	1
Are there specific, repeatable tasks you can engage in early in life that are proven to reduce risk of dementia?	1
Could humans breed any Mammalian species for domestication and select for preferable traits, or are Canines genetically unique?	1
How long does a calorie deficit last?	1
When there are no more sentient beings around to experience time, will time still "pass"?	1