In this book in the Kids Can Do It series, kids can learn how to turn a pair of old sunglasses into wacky windshield-wiper glasses and an ordinary box into a "gift" box that rumbles. Kids begin by learning about the parts of a basic circuit and go on to build switches and battery packs. Projects are made from recycled household materials -- such as cardboard tubes, clothespins and empty shampoo bottles -- and powered by batteries. Helpful hints and troubleshooting tips ensure success with every gadget
發表於2024-12-22
Electric Gadgets and Gizmos 2024 pdf epub mobi 電子書 下載
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Electric Gadgets and Gizmos 2024 pdf epub mobi 電子書 下載