McLaren replace wiper blades force field of sound waves

Company McLaren known fireballs "Formula 1", but is engaged in manufacturing and other sports cars. Here they also try to use unusual scientific and technical innovations. For example, the company's chief designer Frank Stephenson (Frank Stephenson) said in an interview Sunday Times, that in future models McLaren usual on the windshield wipers replace the force field of the sound waves.

It is no secret that the standing sound waves are able to move objects in space. For example, a couple of months ago, scientists from the ETH Zurich demonstrated controlled acoustic levitation liquid droplets grains of solid materials and wooden toothpicks.



In McLaren cars for clearing foreign objects from the windshield apply ultrasound at a frequency of 30 kHz. The generator of sound waves, may also be placed on the windshield. He can throw off the glass drops of rain, snow and even insects.

The sound on this frequency inaudible to the human ear. People do not perceive sound above 20 kHz, but some animals can hear it. For example, dogs and cats sensitivity range is 60 kHz and 79 kHz, respectively. Check your limit of sound perception can be, for example, on the site Noise Addicts .

Frank Stephenson chose not to go into detail, saying only that the technology developed in the military. In general, a good idea. Let's hope that our children in the robotic vehicles have not already messing with creaky, dirty and freezing on the rubber wiper brushes.

Source: habrahabr.ru/post/206310/