Matthews Gill: How Does it Work?
(fb2, 24 страницы, 116 Kb)
Жанр: HarperCollins Publishers
Издательство: HarperCollins Publishers
Год издания: 2005
Аннотация:
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.