The automobile engine is running due to the evaporation of water Bashny.Net

In the United States has created a machine that collects energy from the water through evaporation. Researchers from Columbia University in new York have built a miniature car that is driven by a water motor. Scientists hope that their invention will lead to the creation of the next generation of devices that extract and use energy from natural evaporation.





Study leader Ozgur Sahin (Ozgur Sahin) said that such machines was cheap because draw the energy of the water that continuously evaporates from the surface of lakes and oceans.

Water wants to evaporate. She is committed to it. If you moisten the surface, then sooner or later it will dry. This is a natural process. Our job was to find a way to extract out of his favour, Shahin was quoted by the Guardian.

The basis of the invention lies last year's opening Shahin – disputes ordinary soil plants swell when they absorb water in a humid environment and contract, when you give her air dry. Change the size argument can be used to push and pull objects.

Sahin and his colleagues decided to use this discovery to good use. They created floating piston engine in the form of a thin plastic tape glued to it on both sides and in a certain order disputes.

Under the influence of dry air, the tape was compressed like a spring, and in a humid environment – stretched. The artificial muscle working due to the difference in humidity, the researchers called the "Hydra" Hygroscopically Driven Artificial Muscles ("HYDRA")

Of dozens of muscles experts have collected primitive piston engine. "Hydra" was placed in a plastic case with a small flap at the top. When the engine is put in water, the muscles have stretched and opened the door. After the moisture flap closed and the cycle repeated.

Tests showed that the engine generates enough electricity to power the led lamp.

Scientists believe that such engines can be used to power the led lamps or sensors on the ocean floor. The results of the study were published in the journal Nature Communications.

In addition, the researchers created so-called "wet mill". It plastic wheel was covered with strips with spores, but only one side. One part of the wheel was in a dry environment, the other – in the wet. This allows the ribbon to curl and straighten up, causing the wheel to spin. Engine power was enough to drive a small toy car.published

P. S. And remember, only by changing their consumption — together we change the world! ©

Source: hi-news.ru