Saturday, June 7th, 2008 Posted in Chemistry | 2 Comments »
Every few months or so, my son and I like to make straight-chain polymers out of of polyvinyl acrylic (PVA) and sodium tetraborate. It’s pretty simple to do. You just ... Read more..Wednesday, June 4th, 2008 Posted in Animal Life, Biology | 5 Comments »
This is a tricky question and one that has befuddled many biologists for a long time. The easiest way, but not always 100% accurate, would be to find a frog ... Read more..