When I first arrived in Australia from a tropical country with my dark skin, I thought I understood sunshine. You feel warm. You might squint if it's too bright, but the sun doesn't feel like a serious risk.Then I lived through my first Australian summer. I was conducting experiments at Northwong Beach and I tested my own theory. I didn't put on sunscreen and I don't recommend that.I felt fine until the next day when I had peeling skin and a burning sensation. I learned the hard way. That's what makes UV so ...