Army scientists and engineers recently made a groundbreaking discovery -- an aluminum nanomaterial of their design produces high amounts of energy when it comes in contact with water, or with any liquid containing water.
Supercapacitors promise recharging of phones and other devices in seconds and minutes as opposed to hours for batteries. But current technologies are not usually flexible, have insufficient capacities, and for many their performance quickly degrades with charging cycles.
The SwissKitePower project is a multidisciplinary research and development effort aimed at creating a totally new device which can harness wind energy at high altitudes. The winds at altitude are stronger and more consistent than those at the ground and represent an enormous potential source of renewable energy.
There is more energy to harvest at sea. True, water craft have stronger resistance to overcome but on balance, it means that energy independent electric boats are more common than their equivalents on land or in the air and they have lessons for both.
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