The move is intended to minimize damage during natural disasters, but is it too little too late?
power
Producers of this North Korean military video were probably aiming for fear but instead delivered a two-and-a-half minute funny.
Electronics company Greenhouse is set to release a lantern that runs on just salt and water. It uses that old favorite of high school science teachers everywhere, electrolysis, in combination with efficient light producing LEDs to provide strong and long lasting light free of conventional batteries.
And that lesson seemed so useless when I was doing it…