发表于2024-09-12
Let's Build an Invention 2024 pdf epub mobi 电子书
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Book Description
Let's Build an Invention - A Step-by-Step Guide
A young scientist's guide to inventing amazing machines, from battery-powered stock cars and a colorful zoetrope to weather station instruments and a fan.
* Easy-to-follow instructions for making projects with everyday materials
* Safe but exciting inventions require minimal adult help
Book Dimension
length: (cm)31.5 width:(cm)23.8
Let's Build an Invention 2024 pdf epub mobi 电子书