/u/fireballs619's posts in /r/askscience

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What is symmetry in physics and what does it mean to be broken?

161 upvotes

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What causes the deep blue color in some ice? Why does this not happen in all ice?

112 upvotes

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How efficient is chlorophyll in converting sunlight to energy compared to our best solar cells? If it is more efficient, why don't we copy what those cells do in designing new solar cells?

52 upvotes

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How does the Event Horizon Telescope work?

8 upvotes

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What progress has been made in proving the Reimann Hypothesis?

6 upvotes

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How to the magnetic strips on credit cards encode information? Is there a limit to the amount that can be stored on such a strip?

6 upvotes

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How does Plan B work on the molecular level? Can it prevent the implantation of an already fertilized blastula?

6 upvotes

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Is it possible that the 'extra' gravity that we explain with dark matter is actually gravity inherently produced by the shape of space?

5 upvotes

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What is a good experiment/activity a high school science club can do?

4 upvotes

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Why doesn't the combined gravitational pull of every other object in the universe rip us apart?

3 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
What is symmetry in physics and what does it mean to be broken?	161
What causes the deep blue color in some ice? Why does this not happen in all ice?	112
How efficient is chlorophyll in converting sunlight to energy compared to our best solar cells? If it is more efficient, why don't we copy what those cells do in designing new solar cells?	52
How does the Event Horizon Telescope work?	8
What progress has been made in proving the Reimann Hypothesis?	6
How to the magnetic strips on credit cards encode information? Is there a limit to the amount that can be stored on such a strip?	6
How does Plan B work on the molecular level? Can it prevent the implantation of an already fertilized blastula?	6
Is it possible that the 'extra' gravity that we explain with dark matter is actually gravity inherently produced by the shape of space?	5
What is a good experiment/activity a high school science club can do?	4
Why doesn't the combined gravitational pull of every other object in the universe rip us apart?	3