This paper analyzes early stages of Soviet and US radio broadcasting. It was a different world back then. An illustrated history of logging and sawmills in the US provided by Ed Sanders. An exploration of the technology Twain refers to in his novel, A Connecticut Yankee in King Arthur's Court. Once considered for civil engineering applications.
Site suggests the folly of such schemes.
Timeline of the major events of statistical mechanics and thermodynamics. Includes links to biographies and a complete bibliography. Includes hundreds of pictures of telegraph keys and inventors. Sells time line wall chart chronicling inventions and discoveries from 1000 BC to the present. Miscellaneous links to technology topics.