A Bottle That Purifies Enough Water for a Year

This is a really great invention — a hand held water bottle that can purify a year’s worth of water. It removes not only parasites and bacteria, but also viruses. It was just announced recently at a defense industry tradeshow and was a big hit among military commanders who need a better way to get water to their troops. Beyond that it could be a lifesaver in disaster areas and in developing countries where finding clean water is a daily struggle.