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

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Would it be possible for a ball made entirely and only of protons to exist? Presumably, the size of a tennis ball?

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Why are objects the colour they are?

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How many chemical compounds exist?

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What colour would a tennis sized ball made of protons be?

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Why did plants evolve to be green and not black which would absorb more light?

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How much energy in Joules would a massive thruster need to move the Earth?

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If Earth had a dimmer star, what colour would our plants be?

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Why do some elements 'decay'?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Would it be possible for a ball made entirely and only of protons to exist? Presumably, the size of a tennis ball?	1
Why are objects the colour they are?	1
How many chemical compounds exist?	1
What colour would a tennis sized ball made of protons be?	1
Why did plants evolve to be green and not black which would absorb more light?	1
How much energy in Joules would a massive thruster need to move the Earth?	1
If Earth had a dimmer star, what colour would our plants be?	1
Why do some elements 'decay'?	1