Computer Applications in the Earth Sciences: An International Symposium Proceedings of a conference on the state of the art held on campus at The University of Kansas, Lawrence on 16–18 June 1969. Sponsored by the Kansas Geological Survey, International A

Sunscreen can be a smokescreen. Sunscreen is unlikely to stop you from being sunburned, or to reduce your risk of developing skin cancer. That’s because most people don’t apply it properly, and stay in the sun too long. The solution? Slather on sunscreen daily and reapply it often, especially if you’ve been in the water. How much? At least enough to fill a shot glass.