- The Feynman Lectures on Physics (Wikipedia)
The Feynman Lectures on Physics is a physics textbook based on some lectures by Richard Feynman, a Nobel laureate who has sometimes been called “The Great Explainer”. The lectures were presented before undergraduate students at the California Institute of Technology (Caltech), during 1961–1963. The book’s co-authors are Feynman, Robert B. Leighton, and Matthew Sands.
- Snoqualmie Tunnel (Wikipedia)
The Snoqualmie Tunnel is a former railroad tunnel near Snoqualmie Pass in the U.S. state of Washington, located east of Seattle. The tunnel crosses the Cascade Range about three miles (5 km) south of the pass, which is used by Interstate 90, on the border between King County and Kittitas County. It is 11,894 feet (2.253 mi; 3.625 km) long and is at an approximate elevation of 2,600 feet (790 m) above sea level, just north of Keechelus Lake. Its east portal is at Hyak.