A System of Mechanical Philosophy, Bindi 4J. Murray, 1822 - 50 síður |
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Síða 652
John Robison Sir David Brewster, David Brewster. sails abaft are comparatively smaller . The sails on the mi- zenmast are much smaller than those on the foremast . All the staysails hoisted on the mainmast may be considered as headsails ...
John Robison Sir David Brewster, David Brewster. sails abaft are comparatively smaller . The sails on the mi- zenmast are much smaller than those on the foremast . All the staysails hoisted on the mainmast may be considered as headsails ...
Síða 665
... headsails ; and experienced seamen differ in their practice in this manœuvre . Suppose the yard braced up to 40 ° , which is as much as can be usually done , and that the sail shivers ( the bowlines are usually let go when the helm is ...
... headsails ; and experienced seamen differ in their practice in this manœuvre . Suppose the yard braced up to 40 ° , which is as much as can be usually done , and that the sail shivers ( the bowlines are usually let go when the helm is ...
Síða 668
... sails . But , on the other hand , the action of the headsails is diminished by it ; and we may call every sail a headsail whose centre of gravity is before the centre of gravity of the ship ; that is , all the sails hoisted on the ...
... sails . But , on the other hand , the action of the headsails is diminished by it ; and we may call every sail a headsail whose centre of gravity is before the centre of gravity of the ship ; that is , all the sails hoisted on the ...
Síða 674
... headsails are all aback ; and the action of the wind on them tends greatly to pay the ship round . To increase this ... headsails and of the rudder , and their actions conspire to promote the conversion . The ship has acquired an an ...
... headsails are all aback ; and the action of the wind on them tends greatly to pay the ship round . To increase this ... headsails and of the rudder , and their actions conspire to promote the conversion . The ship has acquired an an ...
Síða 675
... headsails . When the ship has fallen off about four points from the wind , the headsails are hauled round and trimmed sharp on the other tack with all expedition ; and although this operation was begun with the wind four points on the ...
... headsails . When the ship has fallen off about four points from the wind , the headsails are hauled round and trimmed sharp on the other tack with all expedition ; and although this operation was begun with the wind four points on the ...
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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