/r/askscience

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Would a thermonuclear bomb be more powerful if it used an heavier element?

1148 upvotes • whitekaj

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Why is it that when we fall asleep on our own, our time asleep feels longer than when we are put under anesthesia and the time passes what seems instantaneous?

1147 upvotes • xXTheCitrusReaperXx

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If the majority of the Earth's surface is covered in salt water, why and how did we, and so many other species, evolve to require fresh water?

1146 upvotes • muchmadness

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Which is more ideal for the human body to inhabit; a planet with 0.5G or 1.5G?

1146 upvotes • vrweebl

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Why is our brain in our head and not our chest with the rest of our vital organs?

1145 upvotes • Guustaaf

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What is the "lowest" life form that performs a stretching reflex?

1145 upvotes • sotaskimmer

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What happens if an ant is released outside in a strange location?

1144 upvotes • katie824

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Why do some people have a large muscle spasm, perhaps like a falling reflex, as they are falling asleep?

1144 upvotes • psahmn

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My voice I hear in my head.

1143 upvotes • RIT626

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We know lack of sleep has negative health effects, but is there any research showing too much is also bad?

1143 upvotes • Cheleelo

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Would a thermonuclear bomb be more powerful if it used an heavier element?	1148	whitekaj
Why is it that when we fall asleep on our own, our time asleep feels longer than when we are put under anesthesia and the time passes what seems instantaneous?	1147	xXTheCitrusReaperXx
If the majority of the Earth's surface is covered in salt water, why and how did we, and so many other species, evolve to require fresh water?	1146	muchmadness
Which is more ideal for the human body to inhabit; a planet with 0.5G or 1.5G?	1146	vrweebl
Why is our brain in our head and not our chest with the rest of our vital organs?	1145	Guustaaf
What is the "lowest" life form that performs a stretching reflex?	1145	sotaskimmer
What happens if an ant is released outside in a strange location?	1144	katie824
Why do some people have a large muscle spasm, perhaps like a falling reflex, as they are falling asleep?	1144	psahmn
My voice I hear in my head.	1143	RIT626
We know lack of sleep has negative health effects, but is there any research showing too much is also bad?	1143	Cheleelo