A train is a connected series of rail vehicles propelled along a track (or "permanent way") to transport cargo or passengers.
Motive power is provided by a separate locomotive or individual motors in self-propelled multiple units. Although historically steam propulsion dominated, the most common modern forms are diesel and electric locomotives, the latter supplied by overhead wires or additional rails. Other energy sources include horses, rope or wire, gravity, pneumatics, batteries, and gas turbines.
Train tracks usually consists of two, three or four rails, with limited monorails and maglev guideways in the mix.
The word 'train' comes from the Old French trahiner, from the Latin trahere 'pull, draw'.
Read more about Train: Types of Trains, Bogies, Motive Power, Passenger Trains, Freight Trains, Trains in Popular Culture
Famous quotes containing the word train:
“The beginning of reform is not so much to equalize property as to train the noble sort of natures not to desire more, and to prevent the lower from getting more.”
—Aristotle (384–322 B.C.)
“You must train the children to their studies in a playful manner, and without any air of constraint, with the further object of discerning more readily the natural bent of their respective characters.”
—Plato (c. 427–347 B.C.)
“Put me on a moving train if I’m sick, and I’ll get well. It’s good for mind and body to get out and see the world.”
—Maria D. Brown (1827–1927)