This site addresses the advent of the voice recording. The introduction talks about the country at the time of this invention, the feelings of people on the topic, and early recording itself. Included are voice recordings of such...

This site offers an exhaustive list of 1,093 patents granted to Thomas Edison. There is also a graphic representing his annual output available. Hyperlinks to much more information. Included are the actual drawings of inventions...

Using a paper, pencil, and pin students will build a phonograph in this activity. Students will be able to listen to their favorite record with this homemade record player.