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💡Richard Trevithick, seorang insinyur dan penemu pertambangan asal Inggris, membangun kereta api pertama pada tahun 1804. Kereta api ini ditenagai oleh mesin uap dengan roda gila yang besar bahkan hingga aksi batang piston, sehingga memberikan dunia mesin pertama yang dapat mengangkut orang dalam jumlah besar.#keretaapi#richardtrevithick#soundilmuan#
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Penemuan ini sedang terbakar. Lap Roda Panas. Mesin bubuk. Mesin Peternakan
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Mesin penyiraman roda api semprotan tinggi, penyiraman, satu mesin untuk berbagai keperluan, tidak ada efeknya.
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