/u/[deleted]'s posts in /r/askscience

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Do those "sunrise" alarm clocks, which wake you up by imitating the light of the rising sun, really work?

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Does the "present moment" have a real physical existence in the universe, or is it just a feature of the experience of conscious beings?

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Is it possible to tie a knot in a piece of string whose co-efficient of friction is zero?

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Is it possible to work or study while lucid dreaming?

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Could we build a camera with such extremely high resolution that we could zoom in on something and see atoms?

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Where do meteorites gain their velocity?

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When your body gets used to cold water, does it perceive it as a warmer temperature or does it just become less sensitive to the cold?

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In terms of sleep-quality, is it better to dream or not dream?

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When an object absorbs a liquid, is energy lost?

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How does general anesthesia render you unconscious?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Do those "sunrise" alarm clocks, which wake you up by imitating the light of the rising sun, really work?	35
Does the "present moment" have a real physical existence in the universe, or is it just a feature of the experience of conscious beings?	35
Is it possible to tie a knot in a piece of string whose co-efficient of friction is zero?	35
Is it possible to work or study while lucid dreaming?	34
Could we build a camera with such extremely high resolution that we could zoom in on something and see atoms?	34
Where do meteorites gain their velocity?	34
When your body gets used to cold water, does it perceive it as a warmer temperature or does it just become less sensitive to the cold?	34
In terms of sleep-quality, is it better to dream or not dream?	34
When an object absorbs a liquid, is energy lost?	34
How does general anesthesia render you unconscious?	34