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Found 1 from your keywords: author=Howie Baum
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E-book The History of the Wheel
Heavy objects could be moved easier if something round, like a log was placed under it and the object rolled over it. Logs or sticks were placed under an object and used to drag the heavy object, like a sled and a wedge put together. Later, humans…
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Deskripsi Fisik114 hlm
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No. Panggil902 BAU t