Channel: Knowledge Dunia

Category: Education

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Description: roller coaster is a type of amusement ride that employs a form of elevated railroad track designed with tight turns, steep slopes, and sometimes inversions.[1] People ride along the track in open cars, and the rides are often found in amusement parks and theme parks around the world.[1] LaMarcus Adna Thompson obtained one of the first known patents for a roller coaster design in 1885, related to the Switchback Railway that opened a year earlier at Coney Island.[2][3] The track in a coaster design does not necessarily have to be a complete circuit, as shuttle roller coasters demonstrate. Most roller coasters have multiple cars in which passengers sit and are restrained.[4] Two or more cars hooked together are called a train. Some roller coasters, notably wild mouse roller coasters, run with single cars. Video Credits Galactica ; youtube.com/watch?v=P8UOJrtr4v8 Stratosphere hotel : youtube.com/watch?v=fACOEJVQHps Slingshot: youtube.com/watch?v=-QRGz4dkU6I Gravity max: youtube.com/watch?v=aA4_BjmHzAM Mieders alpine coaster: youtube.com/watch?v=iqCkICXWdWI&t=8s Superman ride of steel: youtube.com/watch?v=_diTCrdGWMY youtube.com/watch?v=jKxpHdcOJhk Sky scream : youtube.com/watch?v=YlLBEd9jRVI youtube.com/watch?v=jSt2b4ViXxs Fahrenheit rollercoaster: youtube.com/watch?v=xg44ER8CZDQ youtube.com/watch?v=9Bf4EXWJjfI ultra twister; youtube.com/watch?v=Rl_bwAmmZrs kindaka: youtube.com/watch?v=7om9O0eXIpg youtube.com/watch?v=ysHXnVoS7JI wicked twister: youtube.com/watch?v=jMXcr1Oln4w -~-~~-~~~-~~-~- Please watch: "10 अजीब music instruments :: Top 10 Strange Musical instruments" youtube.com/watch?v=ZvobTb8wP5c -~-~~-~~~-~~-~-