Originally Posted by
terrymorse
Years ago, I did some thermal testing of white vs black helmets under simulated sunlight.
With air moving at 5mph, the white helmet was 1.5ºF above ambient.
Under the same conditions, the black helmet was 2.5ºF above ambient.
Conclusion: As long as the air is moving even slightly, the white-black temperature difference is not significant.
What is this "simulated sunlight" you speak of? Do you ever cycle under it? Also, do you never come to a stop at any time during a ride?
The skin of a polar bear is actually black. The black skin allows them to absorb more UV light to stay warm.
https://thewonderofscience.com/pheno...actually-black