| 21. | During this time, Lindzen published some research on gravity waves, as well as Hadley circulations.
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| 22. | Gravity waves have teased physicists for decades, because they have announced their presence only indirectly.
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| 23. | In 1984 it was demonstrated that the star's variability is due to nonradial gravity wave pulsations.
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| 24. | Only signals that arrive simultaneously at Hanford and Livingston will be considered as gravity wave candidates.
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| 25. | Booker and Bretherton showed that vertically propagating gravity waves were completely absorbed at a critical level.
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| 26. | The gravity wave represents a perturbation around a stationary state, in which there is no velocity.
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| 27. | That would require signaling somehow with gravity waves.
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| 28. | Gravity waves aligned normally to the direction of the wind can show wide, near-parallel cloud strips.
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| 29. | According to relativity theory, that stirring action should send out a weak signal of gravity waves.
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| 30. | "We don't yet know, but these atmospheric gravity waves may affect the process of ozone destruction,"
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