A photo from open sources
U.S. University of California scientists talked about one very unexpected property of air travel, about which most of us probably didn’t even know. According to specialists flying to the sky on an airplane, passengers (and especially pilots and stewardesses) receive an increased dose of cosmic radiation. Researchers estimate that it is 20-70 times higher the natural level of radiation observed on the surface of our the planet. How dangerous is this? Depends on how often a person flies, how many hours he spends in the air and does the route cross North Pole aircraft, where radiation is several times higher than in other areas of the Earth (there the troposphere is compressed to 9 thousand meters, and the plane flies almost in the stratosphere, where there is no protection from cosmic radiation is no longer).
In rarefied air, where the magnetic field is weakened Earth, cosmic rays are amplified so much that during a two-hour flight you will receive as much radiation as in lung x-ray time (and pilots and stewardesses?) Despite the fact that a single trip to the X-ray room is not considered dangerous, carrying out such a procedure too often is not recommended – no more than once a year. Alas some people forced to make work flights almost every day, that is, with with the same success, they could go daily to fluorography. AND you can only guess what crazy doses of radiation are getting astronauts spending in orbit for one and a half hundred days. The truth is radiation is taken into account, and space workers are protected from it to the best of the technical capabilities of modern astronautics. But when when flying on airplanes, radiation is not even taken into account in passenger planes in most cases do not even have a dosimeter (guess why) …
In the United States, by the way, recently developed an advanced a system for calculating radiation doses received by passengers. Special sensors on board many American aircraft assemble now data on cosmic radiation affecting air travelers. Thus, on the websites of airlines You can now find out what dosage of radiation awaits you during one or another flight. On some flights, the radiation is quite large, on others, no. But all this is still only half measures, which in no way protect the passenger of the airliner from the danger that his lurks in case of frequent flights. Moreover, as emphasized researchers, airlines hide this information from passengers, it is more likely for airline workers. They hide because that otherwise people will tend to move as different as possible ways, say, by train, by car, by boat …
Time Aircraft
