A natural philosophy : embracing the most recent discoveries in the various branches of physics, and exhibiting the application of scientific principles in everyday life .. (1899)
Quackenbos, G. P. (George Payn), 1826-1881 · New York, Cincinnati [etc.], American book company · leaf 347
various other eastern nations learned to use it for the samepurpose. The compass of these early times was probably nothing more thana piece of loadstone mounted on a cork and allowed to float on water. Themagnetic needle and the card attached to it were no doubt the inventions ofEuropeans, among… … THE MARINERS COMPASS. the magnetic needle applied ? Describe the Land Compass. 880. To whom is thecompass most important? Describe the Mariners Compass. What is meant byboxing the compass t How is the compass box suspended ? Who are thought tohave been the first to use the magnet in navigation ?…
Physics
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