Portable fuel cell generator: Green and powerful
I am not a film critic, but I find Tom Cruise and Cameron Diaz's recent action movie "Knight and Day" quite a snooze, for the most part. Spoiler alert: There's one thing I like about the movie, however, and it's the idea of the "Zephyr," a perpetual battery about the size of a regular AA that has enough power to run a small city, forever.
Now powering a small city forever with a tiny battery is quite an ambition and will take at least until 2020 to get (I am an optimist). For … Read more