Scientists develop magnetic heat shield for spacecraft


Scientists major space agencies are working to develop a new type of heat shield for spacecraft returning to Earth. A new screen will use superconducting magnets to create a magnetic field strong enough to "beat" of the ship’s hull red-hot plasma is formed during the passage of the dense layers of the atmosphere.

As the spacecraft enter the atmosphere of the Earth at high speeds, due to the friction created by a very high temperature on the surface of the unit casing. Traditional heat shields use temperature-resistant ablative coatings, which are burned in the process of landing, or solid insulating materials such as tiles used in the casing of the shuttle. If the new magnetic shielding to be effective, it will help ease the weight of the ship, to increase the safety of returning to Earth, and to give up the expensive disposable heat-resistant materials, as magnetic protection can be used repeatedly.

Working together on a project ESA (the European Space Agency, ESA), the European aerospace division of EADS Astrium and the German Aerospace Center (German Aerospace Center, DLR, Deutschen Zentrums for Luft-und Raumfahrt). The idea is to use a superconducting coil in the bow hook which creates a strong magnetic field in front of the vehicle.

Scientists are currently evaluating the work of the superconducting coil, and still have not decided exactly how to set it up in the Russian rescue capsule "shuttlecock" for the test.

It is also unknown what amendments would be needed to calculate the trajectory reentry vehicle due to the reflected air flow. Receiving telemetry data will also be difficult as a cloud of ionized gas, which will be formed around the shuttle, will block radio signals.

Advertising: Almost all of us know laminate. However, the term "laminate" is understood by many is not entirely true. Laminated, ie coated plastic film may be not only a parquet floor, and in general any material from paper and cardboard and particle board and finishing the steel sheet. The name of the "laminate" sounds correctly. First, in laying laminate flooring has nothing to do with parquet. Second, the technology of lamination is unacceptable in relation to the parquet floor (usually it is applied varnish). That said, correctly will say "laminate floor", or laminate, which is short of its goal.

One of the main features that stands out from the laminate flooring is its structure and properties. The basis for laying laminate sheets appear, reaching a thickness of 7.11 mm and a length of 100-140 cm and a maximum width - 20 cm at the edges they have spines and grooves - the main elements by which is docked sheets. The only characteristic that reminds laminate flooring - colors and textures, which has its front side. There may be a variety of options that simulate tens of species of trees and other materials, laying laminate flooring and it can produce under different bases: particleboard, fiberboard, and linoleum flooring, wooden flooring, etc. Thus the main requirement for a surface that will execute the laying of laminate flooring is the hardness, the absence of any irregularities (bumps are considered acceptable and not exceeding 2 mm to 2 m). Modern means to eliminate surface irregularities bases are self-leveling mix, as well as special alignment plate. Thresholds for the laminate with respect to their mounting any features not. Want to be the first to know about the most important - free news ticker, be the first.

Webb telescope: high technology, transcendental value
Best "space photography", indicated by astronauts and scientists
Telescope "Chandra" has registered an unusual outbreak of a black hole
NASA satellite has helped discover five planets like Earth in the habitable zone
Installed on the ISS is the most expensive and complex device in the history of the station