Here's a pneumatic cylinder with air hoses attached, forming part of a NASAĮlectric arc shock tube, which is used to carry out tests on space-vehicle reentry. Photo: Pneumatics is used in some ingenious machines. It's all down to the simple science of pressureĪnd the way gases store energy when you squash them up. Or power a train with just a big old bag of nothing? Such wonderfully useful things? How can you lift a helicopter, drill a hole, It sounds like a hugeĬontradiction: how can something as useless and empty as air do From factory machines and roadĭrills to paint-spraying robots and power tools, all kinds ofĮveryday things rely on pneumatics. Old joke back then was really a basic lesson in pneumatics-putting ![]() ![]() Remember a time when you blew up a balloon, held it a moment, then let it zoom madly round the room? What seemed like a great big, goofy
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