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

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How does your immune system cells know from the outside of a cell which cells are "you" if the DNA is down in the nucleus?

2 upvotes

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What is the volume of space seen at the edges of the observable universe?

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How is there enough info on a cell wall for a T cell to recognize exactly one "self" identifier, while it takes billions of nucleotides to make distinct DNA for one person?

1 upvotes

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Are Au, Ag, Pt and other "precious" metals objectively valuable, or is it just a human fixation?

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Who holds the record for being furthest from the earth?

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What is it in blood that is nutritious to mosquitos, leeches, vampires, etc

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What is it in blood that is nutritious to mosquitos, leeches, vampires, etc?

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Can a 2 body thermal system be underdamped?

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If an ant colony were given a steady reliable food source some distance from the nest, over time would the nest move toward the food source?

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How much acceleration do hadrons experience in a particle accelerator like the LHC?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How does your immune system cells know from the outside of a cell which cells are "you" if the DNA is down in the nucleus?	2
What is the volume of space seen at the edges of the observable universe?	2
How is there enough info on a cell wall for a T cell to recognize exactly one "self" identifier, while it takes billions of nucleotides to make distinct DNA for one person?	1
Are Au, Ag, Pt and other "precious" metals objectively valuable, or is it just a human fixation?	1
Who holds the record for being furthest from the earth?	1
What is it in blood that is nutritious to mosquitos, leeches, vampires, etc	1
What is it in blood that is nutritious to mosquitos, leeches, vampires, etc?	1
Can a 2 body thermal system be underdamped?	1
If an ant colony were given a steady reliable food source some distance from the nest, over time would the nest move toward the food source?	1
How much acceleration do hadrons experience in a particle accelerator like the LHC?	1