In this DIY crafts tutorial, discover how to create easy and fun inventions at home. These simple and creative projects are perfect for anyone looking to explore their inventing skills. Learn how ...

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Easy electrical experiments and how to make them; an elementary hand-book of lessons, experiments and inventions for beginners as well as advanced students, written in a simple and easily understood ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of ...