Cars are no longer exclusive recepients of advanced Hydrogen fuel cell technology. Pretty soon, you will turn that lawn mower on and feel the gush of hydrogen power running through its mechanical veins, thanks to a development headed by researchers from Princeton University. The system they have developed simply controls hydrogen fuel cell power thus makingit easy to reduce the amount of power produced. Perfect for small handheld machines.

What a great start! Imagine several of these controllers in series and you have a portable hydrogen battery to lug around during camping season. Read more about it here.