Don_Dickle@lemmy.world to Explain Like I'm Five@lemmy.worldEnglish · 21 hours agoHow do glasses work? If I took a magnifying glass to burn it from the sun. How come the same thing doesn't happen to my eyes even just staring up at the sun for 5 sec?message-squaremessage-square8fedilinkarrow-up118arrow-down12
arrow-up116arrow-down1message-squareHow do glasses work? If I took a magnifying glass to burn it from the sun. How come the same thing doesn't happen to my eyes even just staring up at the sun for 5 sec?Don_Dickle@lemmy.world to Explain Like I'm Five@lemmy.worldEnglish · 21 hours agomessage-square8fedilink
minus-squareEm Adespoton@lemmy.calinkfedilinkEnglisharrow-up2·13 hours agoRight angle and focal distance. Eyeglasses sit such that the focal point concentrated enough to start a fire is a focal point further away than the back of your retina. But it can still cause permanent sunburn/vision loss.
Right angle and focal distance. Eyeglasses sit such that the focal point concentrated enough to start a fire is a focal point further away than the back of your retina. But it can still cause permanent sunburn/vision loss.