Wired reports on the science behind one of our most productive summer rituals:
“It’s just physics and chemistry, essentially,” says Dr. Steve Wang, head of dermatology at the Memorial Sloan Kettering Cancer Center in New York City. Ultraviolet radiation from the sun hits your skin at wavelengths ranging from 290 to 400 nanometers. This span includes both UVA and UVB radiation, though it’s the UVBs—with wavelengths ranging from 290 to 320 nanometers—that are the bigger threat.
Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.
Join us every Wednesday night at 8pm ET for Ask an Engineer!
Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — Lessons Learned Scaling Airbnb 100X
Wearables — ABS ABC
Electronics — When do I use X10?
Biohacking — The Quantified Self Approach to Lowering Blood Glucose
No comments yet.
Sorry, the comment form is closed at this time.