Ever since the dawn of powered flight, it has been necessary for all aircraft to carry onboard fuel — whether in the form of batteries, fuel, solar cells, or even a human "engine" — in order to stay aloft.
With a laser beam centered on its panel of photovoltaic cells, the lightweight model plane makes the first flight of an aircraft powered by a laser beam inside a building at NASAs Marshall Space Flight Center in Huntsville Ala. (Tom Tschida, NASAs Dryden Flight Research Center)
But a team of researchers from NASAs Marshall Space Flight Center in Huntsville, Ala., NASAs Dryden Flight Research Center at Edwards, Calif., and the University of Alabama in Huntsville is trying to change that.
They have now chalked up a major accomplishment… and a "first." The team has developed and demonstrated a small-scale aircraft that flies solely by means of propulsive power delivered by an invisible, ground-based laser. The laser tracks the aircraft in flight, directing its energy beam at specially designed photovoltaic cells carried onboard to power the planes propeller.
Jerry Berg | NASA
From parking garage to smart multi-purpose garage
19.07.2017 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Efficient and intelligent: Drones get to grips with planning the delivery of goods
12.07.2017 | Alpen-Adria-Universität Klagenfurt
Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.
For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...
What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.
To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...
The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....
A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...
Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision
Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...
21.07.2017 | Event News
19.07.2017 | Event News
12.07.2017 | Event News
21.07.2017 | Earth Sciences
21.07.2017 | Power and Electrical Engineering
21.07.2017 | Physics and Astronomy