[thrgfu568]

I'm also not a chemist... but I do have a PhD in mtls science from a top 10 program. My dissertation was on computational chemistry on organic compounds.

You're 100% right.

As long as the photon is energetic enough, it can cause a radical and therefore break a chemical bond.

Brighter the sunlight, more peroxides (or radicals) made, more damage to your skin or your cloth's fibers.

This is also why anti-oxidants are so effective at protecting the body, why inflammation is so damaging (body produces peroxides to eliminate what it believes is a threat), over consumption of food, too much/little exercise, etc. they all affect peroxide concentration or their halflife.

[metalman]

right, been glancing at this thread, and what occured to me is that blue light from LED's having a bleaching effect, specificly on yellow(cebum) organic compounds, then implys that it's not just(famously) hard on our eyes, it's frying them, and possibly worse. I certainly mind a brite screen, and keep it at the minimum level, except when in sunlight or useing my phone to show family and customers things. There are other effects to mass use of high powere LED's, where seagulls are flying around in downtown Halifax, NS in.the middle of the night, which I see now, but never happened with the old mercury vapour street lighting, which was it's own kind of wierd, in that it's bright yellow light from a distance, but makes everything under them monocromatic.IE: something in.the LED light wakes birds up.

[Guestmodinfo]

Nice to meet another Materials Science person. I only did bachelor's in Materials and Metallurgical Engineering. Hi:)