- Mirfak (stars.astro.illinois.edu)
MIRFAK (Alpha Persei). Perseus, the ancient hero who rescued Andromeda, climbs the northeastern sky in northern autumn evenings, bright Mirfak marking his side amidst a lovely stream of stars that lies within the northern-hemisphere autumn Milky Way.
- 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.