The key is to make the flywheel as light as possible and to encase it in a vacuum chamber.
It was also put in a vacuum chamber and subjected to the kind of temperatures it will experience in space.
But, realizing that they needed better manipulators in the microscope, they put the atom down and spent 15 months redesigning the machine's vacuum chamber.
This conical beam is then reflected into a cluster of 1m or so rubidium atoms, which are held trapped in a magnetic field within a vacuum chamber.
Mass spectrometry works by evaporating molecules, giving them an electric charge, and then applying an electric field to them and accelerating them through a vacuum chamber to a detector.
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The outer layers are made of acrylic plastic and the vacuum chamber in the middle is divided into three or four watertight compartments stacked on top of one another.
The transistor itself is composed of a single phosphorous-31 isotope, which has been precisely placed on a base of silicon using a Scanning Tunneling Microscope in an ultra-high vacuum chamber.
All that was needed to make a mechanical energy-storage system was a good enough rotational seal, so the flywheel could spin freely inside a vacuum chamber with no air resistance.
The consortium tested the practicalities of using a printer on the Moon by setting up a D-shape 3D printer, which are used to print very large house-sized structures, in a vacuum chamber with simulated lunar material.
And when its aluminium coating is replaced with silver in a year or two's time (a huge vacuum-chamber housed at the telescope's base will be used to deposit metallic vapour on to the mirror's reflecting surface), it will be able to see into the infra-red with equal clarity, opening up a much neglected area of astronomy.
At certain points during the screening I attended, when the action was interrupted by major eruptions of information, a sealed chamber under partial vacuum might have described the screening room.
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