Any truth to the practice of BLACK painted parts dissipating heat better?
I'm pretty sure that's different. The melanin blocks UV light, which causes injuries. It also blocks the light needed to synthesize vitamin D, and with much less light in the higher latitudes in winter and consequently less vitamin D deficiency, prior to mechanized travel and vitamins people DIED or became more susceptible to disease because of vitamin D deficiency. Evolutionary pressures killed those with more inherent resistance to skin damage from sunlight, as well as selecting for REDHEADS!
So, Merry Christmas!
I'm pretty sure that's different. The melanin blocks UV light, which causes injuries. It also blocks the light needed to synthesize vitamin D, and with much less light in the higher latitudes in winter and consequently less vitamin D deficiency, prior to mechanized travel and vitamins people DIED or became more susceptible to disease because of vitamin D deficiency. Evolutionary pressures killed those with more inherent resistance to skin damage from sunlight, as well as selecting for REDHEADS!
So, Merry Christmas!
