Dierk Langbein

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  • D Langbein
  • Advances in space research : the official journal…
  • 1986
The question is posed: Why does a living cell react to the absence of gravity? What sensors may it have? Does it note pressure, sedimentation, convection, or other parameters? If somewhere in a liquid volume sodium ions are replaced by potassium ions, the density of the liquid changes locally: the heavier regions sink, the lighter regions rise. This may(More)
Using stroboscopic illumination, we observed the motion of the ossicles through a microscope in anesthetized cats. With periodic acoustic stimuli amplitude measurements could be made with an accuracy of approximately 1/10 micron. The displacement amplitude was linearly related to sound pressure at the tympanic membrane up to rms pressures of at least 130 db(More)
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