This is the first 1,000 characters of 953 words (3.81 pages) in the essay titled Physics-Rollercoaster
THE RUSSIAN MOUNTAINS
The first "scream machines" were not out-of-control trains but sleds on man-made ice-covered hills constructed of cut lumber and tree trunks. Elaborate constructions often stretching several city blocks, the 50 mile-per-hour rides earned the nickname "Flying Mountains." Children and adults would make the tedious trek up 70 feet (five stories) of stairs and climb into an ice-block sled outfitted with a straw seat. The trip back down lasted little more than a few fleeting seconds.
Mauch Chunk Switchback Railway
Whereas the Russian Mountains is usually credited as the first wheeled coaster, the Switchback in 1784 at St. Petersburg is perhaps more worthy of the crown. Carriages in grooved tracks traveled up and down small hills powered by the height and slope of the initial descent. Almost 50 years later, the first tracks were laid for the American predecessor of the roller coaster, the Mauch Chunk Switchback Railway in...
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