scientist plan paper planes

Tweet

TOKOYO:countless paper planes have been launched across classrooms by mischevous pupils. now scientists are preparing to unleash, from about 250 miles above the earth, a hi-tech plane made from the same material. aeronautical engineers from Tokyo university believe planes made from heat resistant paper treated with silicon will survive the fiery descent back to the earth after they are released by an astronaut on the international space station this year. in tests,during a 30-seconds phase inside a hypersonic wind tunnel, the planes,designed by the japan origami Airplane association ,survived temperature of 250degree c and wind speeds of match 7-seven times the speed of sound. "paper planes are extremely light so they slow down when the air is thin and can gradually descend,"said shinji suziki,the professor who leads the team