Welche "Temperatur" hat das Vakuum09.08.2013 um 23:23
Es steht auch folgendes auf der NASA Seite, ist aber auch nicht allzu aufschlussreich was die eigentliche Frage betrifft. Allerdings lag raycluster mit den vermuteten 15 Sekunden bis zur Bewusstlosigkeit ziemlich richtig.
At NASA's Manned Spacecraft Center (now renamed Johnson Space Center) we had a test subject accidentally exposed to a near vacuum (less than 1 psi) in an incident involving a leaking space suit in a vacuum chamber back in '65. He remained conscious for about 14 seconds, which is about the time it takes for O2 deprived blood to go from the lungs to the brain. The suit probably did not reach a hard vacuum, and we began repressurizing the chamber within 15 seconds. The subject regained consciousness at around 15,000 feet equivalent altitude. The subject later reported that he could feel and hear the air leaking out, and his last conscious memory was of the water on his tongue beginning to boil.