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The life-long inventor, Lee de Forest invented the three-element vacuum tube used between 1906 and 1916 as a detector, amplifier, and oscillator of radio waves. Beginning in 1918 he began to develop a light valve, a device for writing and reading sound using light patterns. While he received many patents for his process, he was initially ignored by the film industry. In order to promote and demonstrate his process he made several hundred sound short films, he rented space for their showing; he sold the tickets and did the publicity to gain audiences for his invention. Lee de Forest officially brought sound to film in 1919. Lee De Forest: King of Radio, Television, and Film is about both invention and early film making; de Forest as the scientist and producer, director, and writer of the content. This book tells the story of de Forest's contribution in changing the history of film through the incorporation of sound. The text includes primary source historical material, U.S. patents and richly-illustrated photos of Lee de Forest's experiments. Readers will greatly benefit from an understanding of the transition from silent to audio motion pictures, the impact this had on the scientific community and the popular culture, as well as the economics of the entertainment industry.
Osprey's examination of the culminating battle of the American Civil War (1861-1865). "There never was such a campaign, not even by Napoleon" wrote Confederate General Pender of the Second Manassas campaign in which the gray-bearded Virginian, Robert E Lee, came as close as he ever would to exterminating his Northern enemies. In so doing, Lee established himself as the South's pre-eminent military commander and the Army of Northern Virginia as it's most powerful weapon. The fighting in northern Virginia left Union General John Pope's career in tatters and proved the South was a power to be reckoned with. This book's powerful account demonstrates that during that fateful summer of 1862 Lee's soldiers were fighting for anything but a lost cause.
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