myoneural [mÄ«â²Å-nÅ«â²rÄl] Type:Term. Definitions 1. Relating to both muscle and nerve; denoting specifically the synapse of the motor neuron with striated muscle fibers: myoneural junction or motor endplate. Stedmanâs Medical Dictionary Â© Wolters Kluwer Health.
On 16-Aug-1960, Captain Joseph Kittinger of the US Air Force parachuted from a helium balloon at an altitude of 102,800 ft (19.5 miles / 31,354m) setting three world records; the highest parachute jump, the longest free fall (85,300 ft in 4 mins 36 seconds) and the first person to break the speed of sound without an aircraft (714 mph).
Parachute opening altitudes are between 4,000 and 2,000 feet AGL, according to the Federal Aviation Administration. Under average conditions, the free fall is just over a minute and the parachute ride is about 1,000 feet per minute -- the higher you pull the 'chute, the longer you float.