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Covers the basics of quantum field theory, emphasizing the transition from classical to quantum descriptions and the role of fields in mediating interactions.
Explores the importance of the perfect fluid in cosmology and its coupling to gravity, leading to a discussion on the Einstein universe and static gravity.
Delves into catastrophes, from the Lisbon earthquake to the Anthropocene, exploring shifts from providentialist to scientific paradigms and the collapse of industrial civilization.
Explores the fundamental problem of distance in astronomy and discusses various methods for distance measurement, including wide-angle astrometry and detached eclipsing binary distances.