/u/efh1's posts in /r/askscience

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How easy/hard is it to quantum entangle particles and through what mechanisms does this work?

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I'm seeing conflicting sources on radio waves and how they interact with plasma. Some sources say that plasma allows for radar stealth while other sources say radar bounces off of the ionosphere. What causes the different effects?

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External pressure on a spherical vessel. Please help me understand this complex buckling problem. I want to create a hollow sphere of a material with known compressive strength and put the inner void under vacuum. How thick do the walls have to be?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How easy/hard is it to quantum entangle particles and through what mechanisms does this work?	1
I'm seeing conflicting sources on radio waves and how they interact with plasma. Some sources say that plasma allows for radar stealth while other sources say radar bounces off of the ionosphere. What causes the different effects?	1
External pressure on a spherical vessel. Please help me understand this complex buckling problem. I want to create a hollow sphere of a material with known compressive strength and put the inner void under vacuum. How thick do the walls have to be?	0