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

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How is the universe ~ 78 billion light years in radius, when the universe is only 13.7 billion years old?

17 upvotes

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Can 2D really be displayed in our 3D universe?

14 upvotes

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How is light created on the atomic level?

6 upvotes

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How do we KNOW that water is composed of 2 hydrogen and and an oxygen atom?

6 upvotes

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If lights speed is constant, how does it bounce off of a mirror without changing velocity?

5 upvotes

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What kind of energy is the 'E' in Einstein's equation E=mc^2 and why?

4 upvotes

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How does my brain decide what is funny, sad, happy, awkward, etc...?

1 upvotes

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If I were to travel far enough in space I would end up back at the same spot I began at (if I understand correctly). How does this happen?

1 upvotes

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Why is rain on tin soothing?

1 upvotes

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Supposing that the empty space inside of an atom is a vacuum, why do atoms not collapse on themselves?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How is the universe ~ 78 billion light years in radius, when the universe is only 13.7 billion years old?	17
Can 2D really be displayed in our 3D universe?	14
How is light created on the atomic level?	6
How do we KNOW that water is composed of 2 hydrogen and and an oxygen atom?	6
If lights speed is constant, how does it bounce off of a mirror without changing velocity?	5
What kind of energy is the 'E' in Einstein's equation E=mc^2 and why?	4
How does my brain decide what is funny, sad, happy, awkward, etc...?	1
If I were to travel far enough in space I would end up back at the same spot I began at (if I understand correctly). How does this happen?	1
Why is rain on tin soothing?	1
Supposing that the empty space inside of an atom is a vacuum, why do atoms not collapse on themselves?	1