[–] Anam 0 points 3 points 3 points (+3|-0) ago
Insects have receptors which allow them to see in the low ultra-violet range. Most mobile phone cameras are also sensitive to this range, and you can get filters which can show you an insect's eye view. They can also see through certain clothes fabrics which can facilitate voyeurism, so that is why this feature is not strongly advertised, and made relatively difficult to use.
[–] dassaer 0 points 1 point 1 point (+1|-0) ago
Yes, ok. Aside from the low ultra-violet thing, as a youngster i was fascinated with the x-ray specs ad's on the back of various kids magazines, knowing in the back of my mind they were probably totally bogus. But come full circle and not only phone apps but legit TSA airport security machines etc that do that very thing ....
[–] i_scream_trucks 0 points 1 point 1 point (+1|-0) ago
and chinese phone manufacterers were recently banned for putting out phones with that function built in.
if people think wearing a facemask stops them being identified they should probably stay indoors.