Instrument, made by application of principle of Dines Anemometer, is described; it comprises enclosed container having specially shaped buoy floating in mercury therein; buoy rises in amount which is proportional to square root of speed pressure; it is dynamically correct; speed of ship may be indicated by electric current or electric potential difference corresponding to motion of buoy; indication of log is correct whatever its speed may be.
Ship's log and speed indicator
Soc. Arch. -- W. E. C
1929
7 pages
9 Figs., on Supp. Sheets
Aufsatz (Zeitschrift)
Englisch
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