Out in the open air on a beautiful summer day, most people don’t realize that they’re bathing in the world's most common carcinogen – the sun's rays. Ultra violet (UV) rays to be exact. Let’s take a look at how UV rays affect your body, and the sorts of built-in chemical defense systems you're working with to stop any potential damage.
Read up on coffee, or mix up some tequila facts for your next party. Get full-size posters at the ACS Store!
It’s all about location. Location. Location. The average cost is based on a 5,000 kWh system, which would offset about half the energy use of a typical U.S. home.