| 11. | This is the first feeling of weightlessness that the riders experience.
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| 12. | This is the intended sense of weightlessness in what follows below.
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| 13. | On this approach, weightlessness holds when proper acceleration is zero.
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| 14. | Among the problems experienced by astronauts after long spells in weightlessness are:
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| 15. | All of a sudden you get a sense of weightlessness and freedom.
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| 16. | The procedure is used to simulate some of the effects of weightlessness.
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| 17. | Wolf came to appreciate lids during 128 days of weightlessness.
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| 18. | But her novel also incarnates the very weightlessness it describes.
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| 19. | But they can experience weightlessness for only about 20 seconds.
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| 20. | The woozy weightlessness of the story has a near-narcotic effect.
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