A Brief History On January 9, 1839, the first practical photographic process (Daguerreotype) was revealed by the French Academy of Sciences. Digging Deeper Digging deeper, we find many people had been working on the development of practical photography, but Daguerre, a French chemist, was the first to produce a process that was portable, not the size of an entire room, and that resulted in images of reasonable quality. One of the great discoveries by Daguerre was the ability to use paper coated with concoctions containing silver and other chemicals instead of the image being produced on a metal plate. That…
Browsing: Inventions
A Brief History On October 15, 1863, The H. L. Hunley, a Confederate (the South!) submarine, sank during a test, killing its inventor and namesake, Horace L. Hunley. Digging Deeper The Hunley was NOT the first submarine ever invented and certainly not the first one ever used for military purposes. The first military submersible was most likely the Turtle invented by David Bushnell in 1775 for use in the American Revolutionary War. Robert Fulton, another American inventor, invented the leaky Nautilus in 1800 and thus tried unsuccessfully to entice First Consul Napoleon Bonaparte of France to make use of the…
