How Do Pens Work In Space? [Solved]

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How Do Pens Work In Space? [Solved]

Unlike most ballpoint pens, Fisher’s pen does not rely on gravity to get the ink flowing. The cartridge is instead pressurized with nitrogen at 35 pounds per square inch. This pressure pushes the ink toward the tungsten carbide ball at the pen’s tip. The ink, too, differs from that of other pens.20 Dec 2006

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Fisher knew of the issues with the NASA pencils and had the idea of making a

What’s inside a $1,000,000 Space Pen?

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