In August 1940, Tizard boarded a plane to lead a technical mission to the US. Asking nothing in return, the delegation shared Britain’s top-secret designs for jet engine, navigation, and radar technologies with American scientists and military leaders, hoping that the US would further develop...
How much radiation do these machines produce? How does it compare to medical imaging devices? And is it enough to increase cancer rates in the general population? Then there are the questions about privacy. Can TSA agents see bits and pieces they shouldn't be seeing? And do they ever ...
Space suits offer only limited protection from radiation. Some protection is offered by the reflective coatings of Mylar that are built into the suits, but a space suit would not offer much protection from a solar flare. So, spacewalks are planned during periods of low solar activity. Clear ...
Police in their subsequent inquiry were never able to test the Transaero aircraft, tail number EI-DDK 734, for radiation. As the investigation got under way, the plane was mysteriously withdrawn from service. A request was made to check the plane but Russian authorities repl...
Nuclear fusion— the process by which the sun produces energy — involves bringing together two smaller atoms to form a larger one. In either process — fission or fusion — large amounts of heat energy andradiationare released. We can attribute the discovery of nuclear fission to the work of...
in well-known patterns on Earth, the novel environment in space would shift growth patterns and reveal new insights. Similarly, consumer goods companies might want to develop products in space, where high levels of radiation, a near vacuum-like state, and zero gravity might improve design ...
After heating, several materials, emit infrared radiation better than others. These are used as radiators. The components that would otherwise heat up too much are attached to a plate made of these materials and exposed to space. Heat transfers from the component to the radiator by conduction, ...
On the ground, the same man receives approximately 3.11 millisieverts of radiation per year—more than 10,000 times as much. The task force also found that theradiation dosea passenger receives during an average 2.84-hour plane flight—9.4 microsieverts—is nearly 1,000 times greater than the...
Polar orbits are also more exposed to radiation effects. Satellites are arranged in circular planes, each with constant height above Earth. The size of the constellation is given by the number of planes multiplied by the number of satellites per plane (see Figure 3).v ...
To learn much more about the Predator, see How the Predator UAV Works. The MQ-1 Predator Hunter/Killer is equipped with two Hellfire missiles and a targeting system. Photo courtesy U.S. Air Force The Future of Autonomous Systems Is Bright Today's military robots are limited in their ...