Practical Mechanics:
Applied to the Requirements of the Sailor.
By THOS. MACKENZIE,
Master Mariner, F.R.A.S.
General Contents.—Resolution and Composition of Forces—Work done by Machines and Living Agents—The Mechanical Powers: The Lever; Derricks as Bent Levers—The Wheel and Axle: Windlass; Ship’s Capstan; Crab Winch—Tackles: the “Old Man”—The Inclined Plane; the Screw—The Centre of Gravity of a Ship and Cargo—Relative Strength of Rope: Steel Wire, Manilla, Hemp, Coir—Derricks and Shears—Calculation of the Cross-breaking Strain of Fir Spar—Centre of Effort of Sails—Hydrostatics: the Diving-bell; Stability of Floating Bodies; the Ship’s Pump, &c.
“This excellent book ... contains a LARGE AMOUNT of information.”—Nature.
“Well worth the money ... will be found EXCEEDINGLY HELPFUL.”—Shipping World.
“No Ships’ Officers’ Bookcase will henceforth be complete without Captain Mackenzie’s ‘practical Mechanics.’ Notwithstanding my many years’ experience at sea, it has told me how much more there is to acquire.”—(Letter to the Publishers from a Master Mariner).
“I must express my thanks to you for the labour and care you have taken in ‘Practical Mechanics.’ ... It is a life’s experience.... What an amount we frequently see wasted by rigging purchases without reason and accidents to spars, &c., &c.! ‘Practical Mechanics’ WOULD SAVE ALL THIS.”—(Letter to the Author from another Master Mariner).
WORKS BY RICHARD C. BUCK,
of the Thames Nautical Training College, H.M.S. ‘Worcester.’
A Manual of Trigonometry:
With Diagrams, Examples, and Exercises. Price 3s. 6d.
Third Edition, Revised and Corrected.