MIT specialists have developed a sponge that boils water
Researchers at the Massachusetts Institute of Technology (MIT) George Ni and Gang Cheng have created a device in the form of a sponge that can boil water using only solar energy. Scientists believe that their invention can be a revolutionary new way of heating water for homes and industrial enterprises .
Traditional methods of converting water into steam at the expense of solar energy use expensive lenses and special focusing mirrors. The new technology looks much simpler and cheaper.
The sponge consists of a special foam, a heat conducting material and a bubble film. The device includes a copper plate that absorbs various parts of the electromagnetic spectrum. That is, if it is placed in the sun, it begins to absorb heat. It is worth at this moment to pass through the sponge water, as it begins to heat up and turn into steam. The bubbling film serves as a lens that focuses sunlight on the film, bringing the water to a boil.
According to scientists, the invention can be used not only for heating residential premises, but also for the sterilization or desalination of sea water.