The Brief History of Roller Coaster:
The first roller coaster, which is specially-constructed hills of ice in 17th century, originally appeared in St. Petersburg and is also called “Russian mountains”. It was designed with the wooden support. This roller coaster is just a simple slide that took thrillseekers down an icy ramp past a variety of colored lanterns. After a long time development, then the patented roller coaster that is manufactured with wood came into being in 1885. Until today, the modern roller coaster, which is composed of a train (the trains are that several cars are hooked together) that passenger can sit in and be restrained to guarantee the safety and a track with a designed pattern. It can be in one or more inversions and can turn the riders on it upside down.
How does the roller coasters rides work?
Firstly, we should know that the coaster has on engine and the car on the roller coaster is not self-powered. Different from what we all think, the standard full circuit coaster is pulled up with a chain or cable along the lift hill to the first peak of the coaster track. The potential energy accumulated by the rise in height is transferred to kinetic energy as the cars race down the first downward slope. Kinetic energy is then converted back into potential energy as the train moves up again to the second peak. That is to say, the cars of roller coasters are pulled to the top of the first hill at the beginning of the ride, but after that the coaster must complete the ride on its own. In conclusion, the roller coaster are driven by the conversion of the potential energy to kinetic energy.
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