Webb Telescope ISIM structure Centrifuge Test
Webb Telescope's Integrated Science Instrument Module (ISIM) is tested on the very large centrifuge at the NASA Goddard Space Flight Center - May 2011.
The centrifuge simulates the increased feeling of gravity's pull during a launch. For astronauts, that's normally a few minutes at two or three times the force of Earth's gravity, measured in Gs. Equipment carried in space shuttle cargo bays usually sees between 6 and 7 Gs because of vibration.
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NASA's Goddard Space Flight Center