Edwin Hubble Edwin Hubble Edwin Powell Hubble (November 20, 1889 – September 28, 1953) was an American astronomer. He played a crucial role in establishing the fields of extragalactic astronomy and observational cosmology and is regarded as one of the most important astronomers of all time. Hubble discovered that many objects previously thought to be clouds of dust and gas and classified as "nebulae" were actually galaxies beyond the Milky Way. He used the strong direct relationship between a classical Cepheid variable's luminosity and pulsation period (discovered in 1908 by Henrietta Swan Leavitt) for scaling galactic and extragalactic distances. Hubble provided evidence
The Post Card: From Socrates to Freud and Beyond on the book was released. "Love in the Post" is directed by Joanna Callaghan and co-written by Martin McQuillan and produced by Heraclitus Pictures. The film features an unseen interview with Derrida and contributions from Geoffrey Bennington, J. Hillis Miller, Sam Weber, Ellen Burt and Catherine Malabou. The Post Card: From Socrates to Freud and Beyond The Post Card: From Socrates to Freud and Beyond () is a 1980 book by French philosopher Jacques Derrida. It is a "satire of epistolary literature." After "Glas" (1974), it is sometimes considered Derrida's most "literary" book, and continues the critical engagement with psychoanalysis