Fuel cell refillable chargers; nothing to through out or worry about, everything is in a little bottle of methanol that can last you years of gadgets energy.
This time researchers from University of Warwick collected data from almost 200,000 participants. Scientists tried to score people on their ability to solve mental tasks such as navigate with a (not always tho) simple map.
How about his camper tool. Finally you can keep food refrigerated and sealed inside from dangerous animals--like bears.Soon you will. Some guy in Stanford University created a fridge that on expose to heat, such as camp fire, will generate cool inside.
