Men Into Space

There was no sensation of weight. Nothing weighed anything. Nothing could be considered light or heavy. The difference in weight between a copper penny and the ship itself was imaginary. They had different masses, but both would weigh the same—zero. McCauley suddenly turned off the silent air-circulator of the cabin. He struck a match. The flame flared, but not as a rising leaf-shape. It was a perfect ball of incandescence. But it did not continue to burn. It went out, and a ball of white smokiness remained where the flame had been....