Book contents
- Frontmatter
- PREFACE
- Contents
- NAUTICAL
- CHAPTER I THE RAFT
- CHAPTER II THE OAR, THE PADDLE, AND THE SCREW
- CHAPTER III SUBSIDIARY APPLIANCES.—PART I
- CHAPTER IV SUBSIDIARY APPLIANCES.—PART II
- CHAPTER V SUBSIDIARY APPLIANCES. PART III.—THE BOAT-HOOK AND PUNT-POLE.—THE LIFE-BUOY AND PONTOON-RAFT
- WAR AND HUNTING
- ARCHITECTURE
- TOOLS
- OPTICS
- USEFUL ARTS
- ACOUSTICS
- INDEX
CHAPTER IV - SUBSIDIARY APPLIANCES.—PART II
Published online by Cambridge University Press: 29 August 2010
- Frontmatter
- PREFACE
- Contents
- NAUTICAL
- CHAPTER I THE RAFT
- CHAPTER II THE OAR, THE PADDLE, AND THE SCREW
- CHAPTER III SUBSIDIARY APPLIANCES.—PART I
- CHAPTER IV SUBSIDIARY APPLIANCES.—PART II
- CHAPTER V SUBSIDIARY APPLIANCES. PART III.—THE BOAT-HOOK AND PUNT-POLE.—THE LIFE-BUOY AND PONTOON-RAFT
- WAR AND HUNTING
- ARCHITECTURE
- TOOLS
- OPTICS
- USEFUL ARTS
- ACOUSTICS
- INDEX
Summary
AMONG the most important accessories to a ship are the Cable, by which she can be anchored to the bed of the sea, and the ropes called “warps” by which she can be fastened to the land.
Perhaps my readers may not know the old riddle—“How many ropes are there on board a man-of-war?” The non-nautical individual cannot answer, but the initiated replies that there are only three, namely, the man-rope, the tiller-rope, and the rope's-end, all the others being “tacks” “sheets” “haulyards,” “stays” “braces,” &c.
Formerly cables were always made of hemp, enormously thick, and most carefully twisted by hand. Now, even in small vessels, the hempen cable has been superseded by the iron chain, and this for several reasons.
In the first place, it is much smaller in bulk, and therefore does not occupy so much room. In the next place, it is even lighter than the hempen cable of corresponding strength; and, in the third, its specific gravity—i.e. its weight when compared with an equal bulk of water—is so great, that when submerged, it falls into a sort of arch-like form, and so attains an elasticity which takes off much of the strain on the anchor, and protects it from dragging.
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- Information
- Nature's TeachingsHuman Invention Anticipated by Nature, pp. 34 - 43Publisher: Cambridge University PressPrint publication year: 2009First published in: 1877