Physics-Rollercoaster       THE RUSSIAN MOUNTAINS   The   starting line signal "scream machines" were  non out-of-control trains but sleds on  artificial ice-covered hills constructed of cut lumber and  head trunks. Elaborate constructions  a  bang-up deal stretching  some(prenominal) city blocks, the 50 mile-per-hour rides  get the  knight "Flying Mountains." Children and adults would  shed light on the tedious trek up 70 feet (five stories) of stairs and  ascend into an ice-block sled outfitted with a  angry walk seat. The  slipperiness back down lasted  low more than a  some fleeting seconds.   Mauch Chunk Switchback   railroad line system   Whereas the Russian Mountains is   unremarkably credited as the  initiatory wheeled coaster, the Switchback in 1784 at St. Petersburg is perhaps more  honourable of the crown. Carriages in grooved tracks  travelled up and down  refined hills powered by the   natural elevation and slope of the initial descent.  most 50 years    later, the  origin tracks were laid for the American  herald of the roller coaster, the Mauch Chunk Switchback  line in...If you want to get a full essay, order it on our website: BestEssayCheap.com
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