From creating artificial pearls to building a steam boiler, these vintage projects for indoors and outdoors offer a tremendous range of possibilities. Over 250 classic plans and instructions explain how to make model airplanes, greeting cards, a motion-picture camera, a radiophone, a cipher code, motor-driven sleds, and other projects. Drawn from the best of Popular Mechanics magazines from the 1910s and '20s, they combine the excitement and...