Скачать книгу «Why Do Bridges Arch?»
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Автор: Rachel Griffiths
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Жанр: Cambridge University Press
Издательство: Cambridge University Press
Год: 2010
Страниц: 16
Формат: PDF (0.80 МБ)
Дата загрузки: 19 апреля 2014
Why Do Bridges Arch?A series of twenty non-fiction science readers which engages children in the world around them. What holds up skyscrapers? Why are sports domes curved? Why are triangles used in many bridges? You can find the answers to these and other questions about structures in Why Do Bridges Arch? |
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