naught101
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 Mar 2 comment Three-log problem Might help if the image was cropped properly. Mar 1 comment Three-log problem What picture? Is this a homework question? Jul 11 awarded Famous Question May 23 awarded Yearling Jan 24 awarded Curious Jan 23 revised How do HUD optics create readable text so close to the eye? calrification of optics Jan 23 accepted How do HUD optics create readable text so close to the eye? Jan 23 comment How do HUD optics create readable text so close to the eye? I think I'm probably going to need a diagram for this. I understand how optics can be used to make close things appear far away. I guess the real question is how do you do that AND see the real world behind that image? Is it just because the lensed image is only displayed on a relatively sparse grid of pixels, and you can see between them, or does the HUD optics actually incorporate the background image? Jan 23 asked How do HUD optics create readable text so close to the eye? Oct 9 awarded Notable Question Sep 24 awarded Autobiographer Sep 10 comment Difference between nautical and terrestrial miles This seems like a primo question for the History of science and mathematics site proposal on Area51. May 9 comment Why can't we see gases? Ah, ok. However, even the one second from the left looks a little more opaque than the other three (it's harder to see the back of the ring). May 8 comment Why can't we see gases? The $N_2O_2$ appears to be more white than colourless in that image. May 8 comment Why can't we see gases? @Bernhard: It kind of is the explanation - if air (and water) were mostly opaque in the visible light spectrum, there would have been no reason to evolve visual senses in that spectrum. We might have evolved "sight" in a different part of the EM spectrum though. Apr 7 comment Why does a cup with 100 g water float when placed on another cup with 50 g of water? "on" in the question title should probably be "in". Apr 7 comment Why does a cup with 100 g water float when placed on another cup with 50 g of water? How to Physics: Stare at appropriate diagram for a while. :P Apr 5 awarded Commentator Apr 5 comment Why is superdeterminism generally regarded as a joke? @Dokkat: Randomness is basically just a lack of pattern. What makes you say that it requires a "will from outside"? Why would it have that requirement more than any other pattern, or lack of pattern, would? Apr 5 revised Why is superdeterminism generally regarded as a joke? linkification