oddly enough, since i've been working outside all summer, we've all commented on just how much stronger the sun's rays feel.....you'll be working on the shady side of the house then go around to the sunnyside and wham, it's like someone's got a magnifying glass on your back......
We were putting down trek deck (the plastic kind) and the first day, I burned my knees on it and then we started dumping buckets of water on it so we could actually touch it without burning our hands.....
I still say nasa knows something that they ain't telling us, that's why they are so hell bent to get to mars.....or find water on it......