A System of Mechanical Philosophy, Bindi 4J. Murray, 1822 - 50 síður |
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Síða 69
... needle three inches long , as slender as can be had of that length . The other end of the needle passes through a ... dipping a strong and dry silk thread , or fine cord , in melted sealing wax , and holding it perpendicular till it ...
... needle three inches long , as slender as can be had of that length . The other end of the needle passes through a ... dipping a strong and dry silk thread , or fine cord , in melted sealing wax , and holding it perpendicular till it ...
Síða 277
... dipping needles , which must not be touch- ed , lest we disturb the centre of gravity of the needle . But in all cases , this method is tedious , and does not give strong magnetism . * { The method which was usually practised before we ...
... dipping needles , which must not be touch- ed , lest we disturb the centre of gravity of the needle . But in all cases , this method is tedious , and does not give strong magnetism . * { The method which was usually practised before we ...
Síða 286
... dip of the mariner's needle , or of the true magnetic direction , was naturally led by his discovery to conceive the directing cause as placed in the earth ; because the north point of the nee- dle , in every part of Europe , points ...
... dip of the mariner's needle , or of the true magnetic direction , was naturally led by his discovery to conceive the directing cause as placed in the earth ; because the north point of the nee- dle , in every part of Europe , points ...
Síða 287
... needle be very exact- ly balanced on a horizontal axis , like the beam of a ... dipping needles to such of the navigators , his scholars , as he knew most ... dipping needles remained parallel to the horizon , but that in coming toward ...
... needle be very exact- ly balanced on a horizontal axis , like the beam of a ... dipping needles to such of the navigators , his scholars , as he knew most ... dipping needles remained parallel to the horizon , but that in coming toward ...
Síða 288
... dipping , or , in general , the mariner's needle , in the same manner as he ob- served a great magnet arrange a small needle poised on its pivot . He therefore composed his Physiologia Nova de Magneté , et de Tellure magno Magnete ; in ...
... dipping , or , in general , the mariner's needle , in the same manner as he ob- served a great magnet arrange a small needle poised on its pivot . He therefore composed his Physiologia Nova de Magneté , et de Tellure magno Magnete ; in ...
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action angle appear arch axis balance ball beats body canal centre coating concord conductor constipated cord curve cylinder Daniel Bernoulli degree density diameter diminished dipping needle direction distance effect elec electric fluid electrified electrometer electrophorus equal experiments explain farther force give glass globe greater harmony harpsichord headsails impulse inches increase length limma loadstone magnet major third manner mean tones motion moveable musical natural natural density nearly needle north pole observed octave overcharged pallet particle pendulum perfect perpendicular phenomena piece of iron pipe plate polarity position precisely produced proportion pulses quantity ratio reader redundant fluid redundant matter repel round sails scapement sensible shew ship side sound south pole stratum string suppose surface temperament tetrachords theory tion tooth touch tricity trumpet tune undercharged undulations velocity vibrations wheel whole wind wire