It won't be pleasant, but it won't be like the movies, either. So, there's at least one data point about what it's like to be in a vacuum. He later said that his last conscious memory was of the water on his tongue beginning to boil. Technicians began to repressurize the chamber within 15 seconds and he regained consciousness at around the equivalent of 15,000 feet of altitude. He did not pass out for about 14 seconds, by which time unoxygenated blood had reached his brain. The pressure issue would also make it impossible to hold air in your lungs, so you would pass out within a minute, but likely much sooner: "In 1965, while performing tests at the Johnson Space Center, a subject was accidentally exposed to a near vacuum (less than 1 psi) when his space suit leaked while in a vacuum chamber. Your tongue would be susceptible as well. Correction: The pressure is important: Your eyes, if left open, would basically boil and surface freeze because of lack of pressure on the liquid. Do you want to draw easy drawings learn how to draw Guardians of the Galaxy Vol. In fact, if you were to float in sunlight you'd sooner cook than freeze. Download and install Draw Guardians of the Galaxy 2 1.0 on Windows PC. This is what makes a vacuum a good insulator. In a vacuum the only way to lose (or gain) body heat is through thermal radiation. People exposed to the vacuum of space do not freeze in a matter of seconds/minutes.
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