Alternative Energies
Electric cars: Batteries with brains

The battery is the heart of the electric car. Researchers have developed an energy storage device which is significantly more cost-effective over the entire life cycle in comparison with previous models. If one of the more than one hundred battery cells is defective, it can be replaced easily. Until now, the entire battery had to be replaced.

Angry moms get gun-toters booted from Whole Foods

Welcome to America: Home of the free, land of the gun nut. “Open carry” has been in the news this month as Texas implemented a law allowing people to openly carry guns in public as though this were, I don’t know … Syria or 1860. Lest you think this is just Texas being Texas, it’s not: Texas is the 45th state to pass an open carry law, and in the vast majority of those states, you don’t even need a permit. (Incidentally, the NRA spent nearly $300 million in 2013, according to its most recent published tax information. No word on how many lawmakers that bought.) Not everyone is thrilled to see their fellow citizens toting firearms to the mall or the movie theatre…