Science: Enjoying the Earth

Momentarily forgetting that he was no longer living in the weightless environment of spaceflight, returned Skylab 3 Astronaut Ed Gibson put his blood pressure kit out in front of him and turned away; he was startled when the kit crashed to the floor. His fellow space traveler, Gerald Carr, was so astonished by the sound of tumbling ice cubes in his refrigerator that he nearly jumped out of his seat. His wife reassured him:

"It's not the CMG No. 2 [Skylab's balky gyroscope]. It's just the ice maker." Usually a shy homebody, Astronaut Bill...

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