/u/Shawnj2's posts in /r/askscience

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How would one prove that the Earth is round withoutgoing into space?

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If you would need to travel faster than the speed of light to escape from the gravity of a black hole, then could you use a large enough black hole's gravitational energy to accelerate mass very close to c?

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Why does your nose run when you eat spicy food quickly?

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If humans collectively pooled all of their resources together with the goal of harming the Earth/its ecosystems as significantly and permanently as possible, what's the most damage humanity could do?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How would one prove that the Earth is round withoutgoing into space?	1
If you would need to travel faster than the speed of light to escape from the gravity of a black hole, then could you use a large enough black hole's gravitational energy to accelerate mass very close to c?	1
Why does your nose run when you eat spicy food quickly?	1
If humans collectively pooled all of their resources together with the goal of harming the Earth/its ecosystems as significantly and permanently as possible, what's the most damage humanity could do?	1