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

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If a large explosion is kept 100% contained in a shell what happens to the blast wave?

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When a new drug is put on the market and the commercial says to not take if you're allergic, how do you know if you're allergic without taking it first?

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If there are intelligent beings in the Milky Way in 150 billion years or so, when no other galaxies are visible from ours, would they be able to figure out that there are other galaxies or that the universe is expanding? Or would the lack of light to measure mean they would never figure it out?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
If a large explosion is kept 100% contained in a shell what happens to the blast wave?	1
When a new drug is put on the market and the commercial says to not take if you're allergic, how do you know if you're allergic without taking it first?	1
If there are intelligent beings in the Milky Way in 150 billion years or so, when no other galaxies are visible from ours, would they be able to figure out that there are other galaxies or that the universe is expanding? Or would the lack of light to measure mean they would never figure it out?	1