Slow Train Passing

The train tracks let tiny sparks of light burst to life, as metal scrapes against metal. The train itself moves around the bends with patient, rhythmic precision. Like a mechanical snake, it winds its way with purpose. A train is a form of rail transport consisting of a series of vehicles propelled along a rail track 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 a limited number of monorails and maglev guideways in the mix. The word 'train' comes from the Old French trahiner, from the Latintrahere 'pull, draw'.