/u/candytime9's posts in /r/askscience

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At what depth in water would it be physically impossible to urinate due to the pressure?

1532 upvotes

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If water freezes at 0°C and ice melts at 0°C, what happens when you bring water down to exactly its freezing point and ice up to its melting point?

7 upvotes

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If blue fire is hotter than red fire because blue light has a higher frequency and therefore more energy, then why is the hottest fire white? It seems like it should it should be violet. Or is the white the absence of visible light because the particles are excited above the visible spectrum?

7 upvotes

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What is the evolutionary reason for making noises during pleasurable/sexual acts?

2 upvotes

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Are there any practical or theoretical ways to harness electricity from gravity?

2 upvotes

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What would solid air (at absolute zero) look and feel like?

1 upvotes

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How can you wave your hand through a candle slowly but not touch a hot pan without burning yourself?

1 upvotes

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Could you survive just as a head (no body) if oxygenated, nutrition-filled blood was artificially pumped through you?

1 upvotes

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Why does charge gather more on areas of greater curvature?

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What would a modern day, top-of-the-line laptop be worth to technology companies 10 years ago?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
At what depth in water would it be physically impossible to urinate due to the pressure?	1532
If water freezes at 0°C and ice melts at 0°C, what happens when you bring water down to exactly its freezing point and ice up to its melting point?	7
If blue fire is hotter than red fire because blue light has a higher frequency and therefore more energy, then why is the hottest fire white? It seems like it should it should be violet. Or is the white the absence of visible light because the particles are excited above the visible spectrum?	7
What is the evolutionary reason for making noises during pleasurable/sexual acts?	2
Are there any practical or theoretical ways to harness electricity from gravity?	2
What would solid air (at absolute zero) look and feel like?	1
How can you wave your hand through a candle slowly but not touch a hot pan without burning yourself?	1
Could you survive just as a head (no body) if oxygenated, nutrition-filled blood was artificially pumped through you?	1
Why does charge gather more on areas of greater curvature?	1
What would a modern day, top-of-the-line laptop be worth to technology companies 10 years ago?	1