A solar-powered helicopter made its first flight. Free Technical Library News

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Solar-powered helicopter makes first flight

20.09.2016

In the US, students at the University of Maryland tested the first solar-powered helicopter. A four-rotor helicopter equipped with a large number of solar panels. He stayed in the air for more than nine seconds. At first glance, not a very significant result, but it is worth remembering that the first flight of the Wright brothers lasted 12 seconds. At the same time, the height of its flight was a little more than 30 cm.

Previously, the same team made the longest flight of a pedal-powered helicopter in history. By the way, students partially used preliminary drawings for their new development.

"In seven years, this project has come a long way - from mechanical power to clean energy. We overcome the barriers of all types of aviation with a single airframe, modifying and refining the design," said University of Maryland doctoral student William Staruk.

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We begin to smell when molecules of a smelling substance reach the receptors in our nose. If the substance itself is liquid or solid, then the fastest way to smell is to spray tiny drops of liquid containing the desired substance into the air. Air fresheners work according to this principle - gas from a canister under pressure sprays an aerosol into the air, and the room is instantly filled with the desired aroma. However, in the forest, no one runs around with a can of air freshener. It turns out that there is some other, natural method for obtaining an aerosol.

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