Rick Prelinger is the founder of the Prelinger Archives in San Francisco, whose moving image holdings may be found online at ...

The Catholic Church has been undergoing a long, slow shift, playing out on the timescale of centuries: a shift to distance ...

Dr. Priyamvada Natarajan is a Professor in the Departments of Astronomy and Physics at Yale University. Her latest book is Mapping the Heavens: The Radical Scientific Ideas That Reveal the Cosmos. No ...

Monica L. Smith is an archaeologist whose principal research interests are the human interaction with material culture, urbanism as a long-term human phenomenon, and the development of social ...