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

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How is 5G wireless supposed to have 1ms latency if the speed of light would be decently slower than that for distance greater than a few hundred miles?

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You stand on a train platform and watch a guy eating a sandwich through the window of a train going near the speed of light. Is the length of the sandwich dependent on the orientation of the sandwich?

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Is there a theoretical limit to energy density? If so what is it and why is it whatever it is?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
How is 5G wireless supposed to have 1ms latency if the speed of light would be decently slower than that for distance greater than a few hundred miles?	1
You stand on a train platform and watch a guy eating a sandwich through the window of a train going near the speed of light. Is the length of the sandwich dependent on the orientation of the sandwich?	1
Is there a theoretical limit to energy density? If so what is it and why is it whatever it is?	1