SP-4208 LIVING AND WORKING IN SPACE: A HISTORY OF SKYLAB

Crystal-growing in space. The left crystal was grown during the third crew's tenure on Skylab, the middle crystal during the second. All crystals grown on the second mission showed a ring-shaped groove, probably caused by a spacecraft maneuver during the cool-down period. From H. U. Walter, Seeded, Containerless Solidification of Indium Antimonide, Proceedings of 3d Space Processing Symposium-Skylab Results, vol. 1 (NASA, 1974). The Skylab product on the right, a 20-mm crystal of germanium selenide, was the largest grown on earth or in space as of 1974. S-74-19677.

 

Crystal-growing in space. The left crystal was grown during the third crew's tenure on Skylab, the middle crystal during the second. All crystals grown on the second mission showed a ring-shaped groove, probably caused by a spacecraft maneuver during the cool-down period. From H. U. Walter, Seeded, Containerless Solidification of Indium Antimonide, Proceedings of 3d Space Processing Symposium-Skylab Results, vol. 1 (NASA, 1974). The Skylab product on the right, a 20-mm crystal of germanium selenide, was the largest grown on earth or in space as of 1974. S-74-19677.

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