Human generator: turn your body into power

Humans will conduct a lot of activities, but the resulting energy is often silent in the universe. In the eyes of researchers and entrepreneurs, this is undoubtedly a huge waste, so they will never give up all kinds of ways to get these energy. Why don't you use the body itself to charge a small electronic device carrying it?
Sweat generation
Even the simple activity of sweating will also generate charge. Researchers at the University of California San Diego have designed a sensor similar to temporary tattoo, which can utilize sweat power generation. How did it do? It can detect lactates and respond to them. Lactate is a chemical produced during the glycolysis process, while the glycolysis occurs during strong force activity. Probation of lactate levels is not new technologies, professional athletes have been using this way to understand the motion effect, but this tattoo sensor also includes an enzyme that extracts electrons from lactate, which can produce weaknesses in a certain situation. The amount of electricity.
Due to the small size, a less robust person can only produce 4 microwatts of electricity, still less than half of the power required for a watch. But it is not difficult to imagine that if you do a big size, the efficiency is increased, or the function is directly integrated into the entire clothing, you can use this bio-generated technology to support the operation of your smartphone.
Mouth power generation
But you may be more willing to sit quietly to taste sandwich. No problem, the engineers of Montreal école de Technologie Supérieure have developed a special down-BA, which can convert the energy when you chew. Their goal is to power with hearing aids or other small devices in this way. Its belt is made of a piezoelectric fiber composite (PFC), thanks to \"piezoelectric effect \", which can convert energy generated during stretching into electrical energy to supply electronic equipment.
Prototype products seem to be cumbersome, chewing 60 seconds gauze can only produce 18 microwats of electricity, approximately 1/20 of the electricity required for hearing aids. But they said, only need to increase several layers of belts to increase power. They hope that those who often wear helmets (including bicycles, firefighters and miners) can find practicality from this \"extra joint \" one day.
Almost at the same time, the University of Cranfield, the University of Cranfield, used the same piezoelectric fiber composites to produce a military equipment, which can transform the soldiers to the backpack of the backpack into electric energy, making it a self-sufficient power plant. .
Footprint
In a slum in Rio de Janeiro, Shell sponsored a project developed by Pavegen Systems, I hope to make full use of the power of running to power generation - specifically, 22 football players run back and forth. The company has added 200 energy collection tiles on the court, and each foot will generate electricity. Coupled with the contribution of the solar panel, the entire stadium can be fully charged after a full range of lighting. According to reports, when the course was open in September last year, the ball Belle, who participated in the open ceremony, was still tears on the spot.
If you think that Pavegen's technology can also be used in other steps, the company has already led you: they have installed this tile in a multi-school, a subway station in France, a shopping center in Australia and London Heathrow Airport is used to power the LED lighting system and mobile phone charging port.