Boys' Second Book Of Inventions

Boys'' Second Book of Inventions by Ray Stannard BakerCHAPTER I - The Miracle of Radium - Story of the Marvels and Dangers of the New Element Discovered by Professor and Madame Curie.CHAPTER II - Flying Machines - Santos-Dumont''s Steerable Balloons.CHAPTER III - The Earthquake Measurer - Professor John Milne''s Seismograph.CHAPTER IV - Electrical Furnaces - How the Hottest Heat is Produced—Making Diamonds.CHAPTER V - Harnessing the Sun - The Solar Motor.CHAPTER VI - The Inventor and the Food Problem - Fixing of Nitrogen—Experiments of Professor Nobbe.CHAPTER VII - Marconi and his Great Achievements - New Experiments in Wireless Telegraphy.CHAPTER VIII - Sea-Builders - The Story of Lighthouse Building—Stone-Tower Lighthouses Iron Pile Lighthouses and Steel Cylinder Lighthouses.CHAPTER IX - The Newest Electric Light - Peter Cooper Hewitt and his Three Great Inventions - The Mercury Arc Light—The New Electrical - Converter—The Hewitt Interrupter.