Documents Inventions Today

Works Cited Bellis, Mary. "The History of the Guillotine." About.com:Inventors. N.p., n.d. Web. 14 Mar. 2010. . - - -. "Is there Life After Decapitation?"…

Documents Timeline of Photography

PowerPoint Presentation Timeline of Photography Thomas Schuler TED 349 1 Earliest Photos The Camera Obscura was a common sketching device by the mid-1500s, and was used as…