In Japan, began selling an interesting gadget that will force the user to stay awake. It tracks the movement of the century, and one lens darkens in the case of reducing the frequency of blinking below normal. Thus instantly creates discomfort that does not sleep. The device is lightweight and powered by a built-in battery that will last for 8 hours. Charging is via USB.
Read another very interesting article about alternative energy of the Sun, water and air.