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E-book The History of the Wheel

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Penilaian

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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 thought to use the round logs and a sledge together. Humans used several logs or rollers in a row, dragging the sledge over one roller to the next. With time, the sledges started to wear grooves into the rollers and humans noticed that the grooved rollers actually worked better, carrying the object further.

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

902 BAU t

Penerbit

: .,

Deskripsi Fisik

114 hlm

Bahasa

English

ISBN/ISSN

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Klasifikasi

902

Tipe Isi

text

Tipe Media

computer

Tipe Pembawa

online resource

Edisi

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Subjek

Miscellany of History

Info Detail Spesifik

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Pernyataan Tanggungjawab

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Versi lain/terkait

Lampiran Berkas

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