Word: vacuums
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Dates: during 1960-1969
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Another serious space-suit problem is flexibility. Contrast between the pressure inside and the vacuum outside tends to make the suit as tight as a drumhead. To move at all, arms and legs must be fitted with accordion-like joints. To judge by his motions, Leonov could move his arms fairly freely, but his legs and torso seemed stiff and straight most of the time...
...fatal case of the bends, Leonov breathed pure oxygen for a while before he entered the lock. Now, enclosed in his space suit, he was still getting pure oxygen at just about the pressure that he would breathe it on earth. As air escaped from the lock, the vacuum of space reached into it like a monster's claw. The oxygen in Leonov's suit tried to expand, and the suit inflated like a balloon. The cosmonaut must have listened anxiously for the hissing of tiny leaks. But all went well; he flung open the outer door...
...century in underwater excavating. But to resist pressure, they must be bulky and fairly heavy. The cramped cabin of a U.S. Gemini has no room for them, and when the first U.S. astronaut ventures into emptiness, he will open a single hatch and expose the whole cabin to vacuum...
...space-suit plans call for exchangeable equipment: a massive propulsive backpack for use in weightless space, and lighter suits emphasizing oxygen and cooling apparatus for exploring the moon. These suits have not reached the rigorous testing stage, in which men will wear them in a vacuum chamber under the glare of simulated space radiation. Less ambitious suits for emerging from Gemini capsules are farther advanced. Like the suit worn by Leonov. they will carry their own oxygen and cooling equipment and also trail an umbilical cord as an extra safety measure. They are designed to support life in a vacuum...
...platform will be put together gradually while circling on an earth orbit, its parts and supplies carried up by rockets of reasonable size. A vehicle designed for flight in a vacuum will be assembled and fueled aloft, and after it is fully checked out, its trained crew will arrive. When it takes off for the moon, the vehicle will not need much extra thrust since the platform on which it stands is already moving around the earth at 18,000 m.p.h. The ship's structure can be light since it will not have to battle its way through...