Show HN: I quit Harvard, made this wearable sensor. Do you get enough sun/light?igg.me1 points·by kaseyrussell·12 anni fa·0 comments
kaseyrussell·12 anni fa·discussWhat's really cool is how bad your eyes are at judging brightness (i.e. how well they adapt to different light levels). So it's not like you can tell just by looking.