Inside of buildings, cylinders shall be stored in a well-protected, well-ventilated, dry location, at least 20 feet (6.1 m) from highly combustible materials such as oil or excelsior. Cylinders should be stored in definitely assigned places away from elevators, stairs, or gangways. Assigned storage spaces shall be located where cylinders will not be knocked over or damaged by passing or falling objects, or subject to tampering by unauthorized persons. Cylinders shall not be kept in unventilated enclosures such as lockers and cupboards.
Before man could launch into orbit and to the moon, he rode rocket sleds on the ground first. NASA scientists developed decompression sleds that could race at speeds of more than 400 mph before screeching to an abrupt halt, and early testing often had fatal results for chimpanzee subjects that suffered brain damage. Starting in 1954, Colonel John Stapp of the U.S. Air Force endured grueling tests that subjected his body to forces 35 times that of gravity, including one record-setting run of 632 miles per hour. As a flight surgeon, he voluntarily took on the risks of 29 sled runs, during which he suffered concussions, cracked ribs, a twice-fractured wrist, lost dental fillings, and burst blood vessels in both eyes.
excelsior jet 7 2 cracked
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