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).
On 16 August 1960, Kittinger jumped from a balloon high in the stratosphere to make the longest skydive from the highest altitude in history. It is a common misconception that Kittinger exceeded the speed of sound during his fall, but this was not the case. He did reach a peak velocity of 614 mph (988 km/h), however, a mark that still stands as the fastest speed ever reached by a human without a vehicle. Though Kittinger fell short of supersonic speeds, he did get pretty close and achieved a maximum of about Mach 0.9, or 90% of the speed of sound. Joseph Kittinger