- Geology of Interstate Park (PDF) (dnr.state.mn.us)
Interstate State Park, at Taylors Falls, Minnesota, contains some of the most outstanding and unique geological features to be found anywhere in the world. The story of how these features came to be as we see them today is complex but fascinating.
- Thomas Edison (Wikipedia)
Thomas Alva Edison (February 11, 1847 – October 18, 1931) was an American inventor and businessman. He developed many devices in fields such as electric power generation, mass communication, sound recording, and motion pictures. These inventions, which include the phonograph, the motion picture camera, and early versions of the electric light bulb, have had a widespread impact on the modern industrialized world. He was one of the first inventors to apply the principles of organized science and teamwork to the process of invention, working with many researchers and employees. He established the first industrial research laboratory.