Stories tagged conversation

It’s a little early, but Popular Science has issued their list of the top innovations of 2007. Their grand prize winner are nanosolar powersheets, thin flexible films that use nanotechnology to harness solar energy -- and allowing me to tag this post as both "nanotechnology" and "energy." The health innovations section allows me to use the "health" tag, and a new toilet that uses 40% less fresh water allows me to tag this as "water." It's a win-win-win!