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

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Halting problem: When you feed H+ (the halting machine with the output switchers attached) into itself, what is the input of the first machine?

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The UK is currently facing Carbon Dioxide shortages for various industrial purposes, and the government is now paying companies to produce it. My question is why can't they use Nitrogen instead?

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Motion is relative, so when I get in my rocket and zoom around the galaxy, why does time slow down for me and not the people on Earth? What's the symmetry breaker?

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Does leaving washing-up liquid soap suds on dishes to dry have any health risks as opposed to rinsing the dishes with running water? What are they?

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Since our eyes have persistence of vision, what's to stop lights switching on for very short amounts of time and switching off for most of the time, turning on and off 30+ times per second in everyday lighting? Would this save energy?

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Title	Upvotes	Mark as read	Favorited	Rating	Add to a list
Halting problem: When you feed H+ (the halting machine with the output switchers attached) into itself, what is the input of the first machine?	1
The UK is currently facing Carbon Dioxide shortages for various industrial purposes, and the government is now paying companies to produce it. My question is why can't they use Nitrogen instead?	1
Motion is relative, so when I get in my rocket and zoom around the galaxy, why does time slow down for me and not the people on Earth? What's the symmetry breaker?	1
Does leaving washing-up liquid soap suds on dishes to dry have any health risks as opposed to rinsing the dishes with running water? What are they?	1
Since our eyes have persistence of vision, what's to stop lights switching on for very short amounts of time and switching off for most of the time, turning on and off 30+ times per second in everyday lighting? Would this save energy?	1