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 Great Travels
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Hardside Luggage With Wheels: Even in big-ship first : is rarely done on the first and last evenings and not too generally on Sunday venings. Dress clothes, of course, involve extra hardside luggage with wheels and since the chances re several to one against your needing them on shore if you are taking a normal oliday tour, you may arrange with the steamship company to hold in storage a rank or suitcase containing this gear, to be picked up on the return trip, for se again on the steamer. hardside luggage with wheels problems, along with the hardside luggage with wheels itself, can bus be lightened in Europe by perhaps one-fourth.
VELOCIPEDE, a light carriage consisting of a simple frame-work, supported on two or three wheels, and which is driven by the feet acting on cranks attached to the axle of one or two wheels. The name was first given to the contrivance of the Frenchmen Blanchard and Mazurier, introduced in 1779. It consisted of two wheels placed tandem and connected by a horizontal bar upon which the rider sat astride, propelling the machine by a motion of the legs as in walking, but pushing forcibly backward upon the ground. Considerable speed was attained for short distances.
WATERWHEEL, a machine by which the energy of falling water is converted to mechanical work. Water, through its tendency to seek the lowest level, acts as a motive power by its weight. Confined in a vertical pipe, this weight becomes pressure. The velocity of flowing water becomes impulse. There are two general classes of water-wheels: the vertical, which includes overshot, breast, undershot wheels, and the horizontal, which includes a great variety of turbine or reaction wheels. Vertical waterwheels, or those with horizontal axle shafts, will be discussed in this article; for horizontal wheels, which are those now commonly in use, see TURBINE—Hydraulic Turbine.
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