The New Practical Navigator: Being a Complete Epitome of Navigation: to which are Added, All the Tables Requisite for Determining the Latitude and Longitude at Sea: Containing the Different Kinds of Sailing, and Necessary Corrections for Lee-way, Variation, &c. Exemplified in a Journal at Sea ... The Whole Illustrated with Engravings ...F. and C. Rivington, 1810 - 336 sider |
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Resultat 1-5 av 54
Side vii
... Natural Sine of half the Radius ; and , ac- cording to Euclid , Axiom 6 , Book I. what things are each of them half of the same quan- sity , are equal among themselves .. CONTENTS . To extract the Root in Logarithms . DECIMAL.
... Natural Sine of half the Radius ; and , ac- cording to Euclid , Axiom 6 , Book I. what things are each of them half of the same quan- sity , are equal among themselves .. CONTENTS . To extract the Root in Logarithms . DECIMAL.
Side 2
... radius of a circle , or semidiameter , is a right line drawn from the centre to the circumference , as AC ; or it is that line which is taken between the points of the compasses to describe the circle ; and is half its diameter AB ...
... radius of a circle , or semidiameter , is a right line drawn from the centre to the circumference , as AC ; or it is that line which is taken between the points of the compasses to describe the circle ; and is half its diameter AB ...
Side 7
... radius in your compasses , and one foot on C , draw the arch FB , on which set off 36o 30 ' , or 36 , from B to F ; through F and the centre C , draw the right line AC , and it is done ; for the angle ACB will be an an- gle of 36 ° 30 ...
... radius in your compasses , and one foot on C , draw the arch FB , on which set off 36o 30 ' , or 36 , from B to F ; through F and the centre C , draw the right line AC , and it is done ; for the angle ACB will be an an- gle of 36 ° 30 ...
Side 10
... radius , and one foot in the cir- cumference as at A , describe an arch of a circle , as CBD , then removing the foot from A to whence it cuts the given circle , as at B , on B describe another arch , cut- ting or crossing the former ...
... radius , and one foot in the cir- cumference as at A , describe an arch of a circle , as CBD , then removing the foot from A to whence it cuts the given circle , as at B , on B describe another arch , cut- ting or crossing the former ...
Side 11
... radius , or diameter , just touching the arch , as DG . V. The secant of an arch is a right line drawn from the ... radius being the sine of a quadrant , or a fourth part of the circumference , contains 90 degrees ; thus the radius is ...
... radius , or diameter , just touching the arch , as DG . V. The secant of an arch is a right line drawn from the ... radius being the sine of a quadrant , or a fourth part of the circumference , contains 90 degrees ; thus the radius is ...
Vanlige uttrykk og setninger
anchor angle apparent altitude arch azimuth Bearing and Distance cable centre chord Co-secant Co-sine Co-tang coast column compass correction dead reckoning degrees diff difference of latitude difference of longitude Dist draw east England Epact equal equator EXAMPLE extent will reach fathoms find the Diff fore Funchal given Greenwich guns half haul Head high-water hm hm hm horizon hypotenuse Island Isle latitude and departure leeway line of numbers line of sines log-board mast Mercator's Sailing meridian meridian altitude meridional difference Middle Latitude miles minutes moon moon's noon observation parallax parallel perpendicular Plane Sailing Port quadrant radius reckoning right ascension right line rope Secant sextant ship ship's Shoal shore side South Point star star's stay-sail steer subtract Suppose tack Tangent tide top-mast Traverse Table true altitude variation wind yards zenith distance
Populære avsnitt
Side 245 - Adrift, the state of a ship or vessel broke loose from her moorings, and driven without control, at the mercy of the wind, sea, or current.
Side 25 - ADD the logarithms of the SECOND and THIRD terms, and .from the sum SUBTRACT the logarithm of the FIRST term.
Side 147 - The next item is $3,600 to provide for the changing of two stack elevators, one on the east and one on the west side of the building.
Side 107 - These contrary winds do not shift from one point to its opposite all at once ; in some places the time of the change is attended with calms, in others by variable winds ; and it often happens on the...
Side 10 - EXAMPLE. If the diameter of a circle be 7 inches, and the circumference 22, what is the circumference of another circle, the diameter of which is 14 inches ? Extend from 7 to 22, that extent will reach from 14 to 44 the same way.
Side xi - In a right triangle, the side opposite the right angle is called the hypotenuse, and the other two sides the legs.
Side 301 - FRANKINCENSE, is to be thrown gently into the Fundament, with a proper Instrument, or the Bowl of a Pipe covered, so as to defend the Mouth of tlie Assistant.
Side 8 - I tenth part ; and the next 2, 2 tenth parts; and 10 at the end will be but one whole number or integer. As the figures are increased or diminished in their value, so in like manner must all the intermediate strokes or subdivisions be increased or diminished ; that is, if the first...
Side 259 - Man the yards. — Is placing men on the yards, in the tops, on the ladder, &c., to execute any necessary duty. Mind the service. — Put on more service. Messenger. — A small kind of cable, which being brought to the capstan, and the cable by which the ship rides made fast to it, it purchases the anchor. To Miss stays.
Side 259 - To elevate any distant object at sea by approaching it ; thus, to raiie the land is used in opposition to lay the land. To Rake. To cannonade a ship at the stern or head, so that the balls scour the whole length of the decks. Range of Cable. A sufficient length of cable drawn upon deck before the anchor is cast loose, to admit of its sinking to the bottom without any check.