What are solar sails?
solar sail is a proposed form of a space drive that uses the pressure of solar photons to ensure the pull. The photons reflect from the mirror connected to the payload, pass on momentum and allow the sheet to be accelerated and its accompanying useful load. Because photonic pressure is relatively small compared to, for example, a draft created by a chemical missile, the solar sails must be very large and light. One design studied by NASA would be approximately half a kilometer wide (0.31 million). The proposed building materials include Mylar and Polyimide, aluminum and a new type of carbon fibers. (Drexler is primarily known as the father of nanotechnology fields.) Employment of aluminum films about 30-100 thick nanometers, Drexler's designs would offer a tension values per square meters about 10 times higher than most of the designs that employ plastics. The key to the design of the Drexler design would be space production facilities. Films for solar sails are too fine onto be folded, lowered and deployed.
No spacecraft has been created so far that uses solar sails as a primary drive method, although the photonic pressure has been used to make small changes in space probes courses. In 2004, however, the Japanese air agency ISAS, ISAS, successfully deployed 2 prototypes of solar sails in the low orbit of the country. In 2005, a joint private project between the planetary company , Cosmos Studios and Russian Academy of Science , launched Cosmos 1 , the world's first spacecraft in the world. Given the unconventional nature of the solar sail drive, large government agencies were reluctant to invest in it and left development in private entities.
Solar Sails would be ideal for use in the solar system where the sun's rays are most intense. For missions outside the solar system would have to be used mirrorsAnd the size of the planet to focus of light energy exactly on the sun sails. Although it is a massive engineering task, one day it may prove to be the easiest way to speed up a spacecraft to a substantial part of the speed of light. Well -designed solar sails could travel instructions except directly from the Sun and tilting the sheet at a suitable angle. To improve the velocity of solar sails, a painted solar sheet, a hypothetical sheet was designed to be covered with chemicals designed to evaporate throughout the spacecraft, giving another move.