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Matthews Gill
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How Does it Work?
Автор: Matthews Gill Жанр: HarperCollins Publishers Год: 2005 Страниц: 24 Дата загрузки: 28 мая 20082006-06-05
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How does a yo-yo climb back up its string? Why does a boomerang come back to you? And how does a kaleidoscope work? These and other mind-bending questions are answered in this explanation text about how toys work.
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