I was wondering today when I was in a friend's car. Is there something in the windows that blocks rays out or can you still get a tan inside with the windows rolled up?
2007-05-27 15:36:41 · 11 answers · asked by Matt 3 in Science & Mathematics ➔ Biology
generally, most glass absorbs shorter wavelengths of ultraviolet light (190-320 nm) but allows the longer UVA wavelengths through. while these arent as energetic and thus not as dangerous, enough exposure will cause you to get tan/burnt
autoglass often contains additional materials, like plastics, that will absorb these rays and, for the most part, prevent burns
2007-05-27 15:42:21 · answer #1 · answered by Anonymous · 0⤊ 0⤋
It's not exactly a tint, it's just a coating resistant to UV rays (this coating has chemical similarities to sunblock). If it's a really old car, or, more specifically, old windows, then people may not have been concerned with melanomas yet (we're talking 60's here, guys), then the windows might not have that coating. If they're newer than early 90's, there should be no doubt that your windows have the coating, unless you got them from a really cheap discount place. If they don't have the coating, it's just like being out in the sun, except you've built yourself an oven, too.
2007-05-27 15:43:41 · answer #2 · answered by Tha Nurd 3 · 0⤊ 0⤋
No, you will not get a tan through the car windows.
2007-05-27 15:39:09 · answer #3 · answered by T Leeves 6 · 0⤊ 0⤋
if the windows are not tinted, then the sun's rays are still able to penetrate through the window, and if u stay long enough, you can eventually tan. unless u r rele white, then dont forget the sunscreen!
2007-05-27 15:39:54 · answer #4 · answered by Star108 2 · 0⤊ 0⤋
Yes. My left arm gets much darker in summer, despite the fact that I use the a/c and have the windows rolled up.
2007-05-27 15:40:33 · answer #5 · answered by Maryfrances 5 · 0⤊ 0⤋
You can still get a tan unless the windows are deeply tinted.
2007-05-27 15:40:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
The glass blocks the UV rays that burn/tan your skin.
2007-05-27 15:40:14 · answer #7 · answered by Fester Frump 7 · 0⤊ 0⤋
Because even polarized glass, let ultraviolet rays B pass through.....even the reflection of solar light can make you tanned, because of the same reason......
2007-05-27 15:42:19 · answer #8 · answered by Sehr_Klug 50 6 · 0⤊ 0⤋
some of the tints do block uv rays, but you'd have to have that tint, and front windshields don't have it..
I've gotten a mean sunburn with the windows up!
2007-05-27 15:39:35 · answer #9 · answered by Anonymous · 1⤊ 0⤋
"Does UltraViolet radiation pass through glass?"
I've wondered this myself.
2007-05-27 15:39:45 · answer #10 · answered by Anonymous · 0⤊ 0⤋