WAVE, a volume of water elevated by the action of the wind upon its surface, into a state of fluctuation.
Mr. Boyle has proved, by a variety of experiments, that the utmost force of the wind never penetrates deeper than six feet into the water; and it should seem a natural consequence of this, that the water put in motion by it can only be elevated to the same height of six feet from the level of the surface in a calm. This six feet of elevation being then added to the six of excavation, in the part whence that water was raised, should give twelve feet for the greatest elevation of a wave, when the height of it is not increased by whirlwinds, or the interruption of rocks or shoals, which always gives an additional elevation to the natural swell of the waves.
We are not to suppose, from this calculation, that no wave of the sea can rise more than six feet above its natural level in open and deep water; for some immensely higher than these are formed in violent tempests, in the great seas. These, however, are not to be accounted waves in their natural state; but they are single waves composed of many others: for in these wide plains of water, when one wave is raised by the wind, and would elevate itself up to the exact height of six feet, and no more, the motion of the water is so great, and the succession of the waves so quick, that during the time wherein this rises, it receives into it several other waves, each of which would have been of the same height with itself. These accordingly run into the first wave, one after another as it rises: by this means its rise is continued much longer than it would naturally have been, and it becomes accumulated to an enormous size. A number of these complicated waves arising together, and being continued in a long succession by the duration of the storm, make the waves so dangerous to shipping, which the sailors, in their phrase, call mountains high.
WAY of a ship, the course or progress which she makes on the water under sail. Thus, when she begins her motion, she is said to be under way; and when that motion increases, she is said to have fresh way through the water. Hence also she is said to have head-way or stern-way. See those articles.
WEARING. See the article Veering.
WEATHER is known to be the particular state of the air with regard to the degree of the wind, to heat or cold, or to driness and moisture.
Weather is also used as an adjective, applied by mariners to every thing lying to-windward of a particular situation. Thus a ship is said to have the weather-gage of another, when she is farther to-windward. Thus also, when, a ship under sail presents either of her sides to the wind, it is then called the weather-side; and all the rigging and furniture situated thereon are distinguished by the same epithet; as, the weather-shrouds, the weather-lifts, the weather-braces, &c. See the article Lee.
To Weather, is to sail to-windward of some ship, bank, or head-land.
Weather-bit, a turn of the cable of a ship about the end of the windlass, without the knight-heads. It is used to check the cable, in order to slacken it gradually out of the ship, in tempestuous weather, or when the ship rides in a strong current. See also Ring-rope.
Weather-shore, a name given by seamen to the shore lying to the windward.