Infographic: How Roller Coasters Are Built Infographic: How Roller Coasters Are Built — Born to...Believe it or not, roller coasters are only about 150 years old, though they have their roots in Russian ice sledding and railway systems that are a couple of hundred years old. Our latest Infographic looks at exactly how Roller Coasters are Engineered https://imgs.plurk.com/Qyc/IbG/ay4147fLJt0OgZ7sN78HdqbBt1E_lg.jpg
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掰噗~覺得
太害羞了
嗯、嗯喔 Σ(゚Д゚;≡;゚д゚)?(左看右看
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