/r/askscience

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Is building a "space elevator" even feasible?

1051 upvotes • enjoiglobes2

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When I turn down the dimmer switch on my lights, do I actually use less electricity, or is the difference between the bulb's nominal wattage and the actual wattage vented as heat by the dimmer?

1050 upvotes • LivingDaylight

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Why is a 12V household battery virtually harmless, but a 12V car battery potentially deadly?

1050 upvotes • [deleted]

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Does the universe as a whole have an orbit?

1050 upvotes • AnselmFox

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Would the exterior of a massive rapidly spinning disc detach from the interior because it was advancing forward in time?

1049 upvotes • glaughtalk

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Has the human penis grown larger over time due to natural selection?

1049 upvotes • Semyonov

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If you're in the space between galaxies, is every dot in the background necessarily a galaxy? Are there free-floating stars or bodies that aren't a part of a galaxy?

1048 upvotes • krevency

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Are there very efficient and higly used drugs that we have no idea how do they work?

1048 upvotes • [deleted]

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What would an orbit around an infinitely long cylinder look like?

1048 upvotes • Yuktobania

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What do producers of lab-grown meat use as a medium to nourish the growing tissue?

1048 upvotes • giraffevomitfacts

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Is building a "space elevator" even feasible?	1051	enjoiglobes2
When I turn down the dimmer switch on my lights, do I actually use less electricity, or is the difference between the bulb's nominal wattage and the actual wattage vented as heat by the dimmer?	1050	LivingDaylight
Why is a 12V household battery virtually harmless, but a 12V car battery potentially deadly?	1050	[deleted]
Does the universe as a whole have an orbit?	1050	AnselmFox
Would the exterior of a massive rapidly spinning disc detach from the interior because it was advancing forward in time?	1049	glaughtalk
Has the human penis grown larger over time due to natural selection?	1049	Semyonov
If you're in the space between galaxies, is every dot in the background necessarily a galaxy? Are there free-floating stars or bodies that aren't a part of a galaxy?	1048	krevency
Are there very efficient and higly used drugs that we have no idea how do they work?	1048	[deleted]
What would an orbit around an infinitely long cylinder look like?	1048	Yuktobania
What do producers of lab-grown meat use as a medium to nourish the growing tissue?	1048	giraffevomitfacts