/r/askscience

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Is it possible to reach higher local temperature than the surface temperature of the sun by using focusing lenses?

2132 upvotes • MrDirian

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If antibacterial soaps and sanitizers kill "99.9%" of bacteria, how are we not breeding superbugs from that 0.01%?

2131 upvotes • robotshoelaces

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As light is part of the electromagnetic spectrum why is it referred to in terms of photons whereas frequencies that are higher/lower are not?

2131 upvotes • DrBob2016

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When you're infected with a virus, what percentage of your body's cells actually contain the virus?

2131 upvotes • Gromflake

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Can a binary star system have a planet or a body orbiting in a shape of 8 around both the stars?

2130 upvotes • testiclesofscrotum

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There is a lot of talks recently about herd immunity. However, I read that smallpox just killed 400'000 people/year before the vaccine, even with strategies like inoculation. Why natural herd immunity didn' work? Why would the novel coronavirus be any different?

2129 upvotes • Mizar83

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AskScience AMA Series: We've studied what happens to your microbiome after a stool transplant. AUA!

2129 upvotes • AskScienceModerator

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Is it just a huge coincidence that all the continents aren't completely submerged?

2128 upvotes • fishsandwich

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How can we tell whether a galaxy it tinted red due to redshift, or just naturally having a red glow?

2128 upvotes • 3MGJohn

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Do all birds have a common ancestor?

2126 upvotes • [deleted]

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Title	Upvotes	Author	Mark as read	Favorited	Rating	Add to a list
Is it possible to reach higher local temperature than the surface temperature of the sun by using focusing lenses?	2132	MrDirian
If antibacterial soaps and sanitizers kill "99.9%" of bacteria, how are we not breeding superbugs from that 0.01%?	2131	robotshoelaces
As light is part of the electromagnetic spectrum why is it referred to in terms of photons whereas frequencies that are higher/lower are not?	2131	DrBob2016
When you're infected with a virus, what percentage of your body's cells actually contain the virus?	2131	Gromflake
Can a binary star system have a planet or a body orbiting in a shape of 8 around both the stars?	2130	testiclesofscrotum
There is a lot of talks recently about herd immunity. However, I read that smallpox just killed 400'000 people/year before the vaccine, even with strategies like inoculation. Why natural herd immunity didn' work? Why would the novel coronavirus be any different?	2129	Mizar83
AskScience AMA Series: We've studied what happens to your microbiome after a stool transplant. AUA!	2129	AskScienceModerator
Is it just a huge coincidence that all the continents aren't completely submerged?	2128	fishsandwich
How can we tell whether a galaxy it tinted red due to redshift, or just naturally having a red glow?	2128	3MGJohn
Do all birds have a common ancestor?	2126	[deleted]