/u/sixtyearths's posts in /r/askscience
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Blue light permanently damages your eyes according to some dubious studies and definitely some glasses manufacturers. Are there any upcoming or ongoing studies on this phenomenon? I'd like to put it on my calendar to check what the research says so I can forget about it in the interim.
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If you put a brick into a room heated to 100C consistently, more energy will be required to keep that room at 100C. If you put a large glass bottle containing a vacuum into the room, will that decrease the energy required to stay at 100C?
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Does wearing glasses that are the wrong prescription damage your vision? What about not wearing glasses when you need them?
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