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

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When was there a 'cosmic visible light' background?

3038 upvotes

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How does my immune system know not to kill my gut flora? Could diseases exploit this?

17 upvotes

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Since HIV-infected patients have such high levels of antibodies, how does the virus make progress at all?

14 upvotes

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What is the difference among CT scans, PET scans, and MRIs? More specifically, what is each one used for?

11 upvotes

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Hypothetically, could you keep donating your bone marrow forever?

1 upvotes

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What is the difference between germ theory and contingent contagionism?

1 upvotes

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Why are certain infectious diseases less dangerous to children than adults, and vice-versa?

1 upvotes

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If I took my 2016 smartphone back in time to 2008, would it work?

1 upvotes

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
When was there a 'cosmic visible light' background?	3038
How does my immune system know not to kill my gut flora? Could diseases exploit this?	17
Since HIV-infected patients have such high levels of antibodies, how does the virus make progress at all?	14
What is the difference among CT scans, PET scans, and MRIs? More specifically, what is each one used for?	11
Hypothetically, could you keep donating your bone marrow forever?	1
What is the difference between germ theory and contingent contagionism?	1
Why are certain infectious diseases less dangerous to children than adults, and vice-versa?	1
If I took my 2016 smartphone back in time to 2008, would it work?	1