balloon altitude造句

• In 1905, Stratton, Rolls and Frank Hedges Butler set a balloon altitude record of.
• Hot air balloon pilot and current holder of the South African Hot Air Balloon Altitude record.
• He jumped from a balloon at an altitude of ( which was also a manned balloon altitude record at the time ).
• Elson said the team had identified the problems and were preparing for another attempt to break the world manned balloon altitude record in 2005.
• Victor A . Prather of the U . S . Navy set the balloon altitude record of 21.5 miles, Prather was drowned during the recovery.
• Victor A . Prather of the U . S . Navy set the balloon altitude record of 21 . 5 miles, Prather was drowned during the recovery.
• The ascent took one hour and 31 minutes and broke the previous manned balloon altitude record of, which was set by Major David Simons as part of Project Manhigh in 1957.
• On September 7, 1956, the University of Minnesota launched a giant Mylar balloon ( developed by the G . T . Schejeldahl Corporation of Northfield, MN ) to set an unofficial balloon altitude record of for unmanned balloons.
• In January 2007, Hempleman-Adams broke the quarter-century old world small sized hot air balloon altitude record, by ascending to 9, 906 meters over Alberta, Canada; beating the previous record of 9, 537 metres set by Carol Davis in New Mexico.
• Because he did not return to earth with his balloon, his unprecedented altitude is not recognized by the " F閐閞ation A閞onautique Internationale " as a balloon altitude world record, and because he did not jump from the balloon's gondola at 123, 500 feet, he earned no parachute altitude record either.
• Due to the attenuation of soft X-rays by the residual atmosphere at balloon altitudes these early experiments were restricted to energies above ~ 20 keV . Observations down to lower energies were begun with a series of high altitude sounding rocket experiments; by this stage Steve Holt had already joined the program.