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The Formation of our Galaxy - Professor Joseph Silk

Professor Joseph Silk explains what the relics of the earliest universe can tell us about our past and our future: http://www.gresham.ac.uk/lectures-and-events/the-formation-of-our-galaxy
A typical galaxy, like our Milky Way, has one hundred billion solar masses in stars. It is remarkable that one can do back-of-the-envelope estimates that lead to predictions of the characteristic mass of a galaxy. I will describe how galaxies formed. Beginning from infinitesimal fluctuations in the early universe, gravity helped concentrate the matter into clouds that fragmented into stars and assembled into galaxies. With the largest telescopes, one can look back in time and decipher the remote signatures of galactic youth and even birth.
The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/the-formation-of-our-galaxy
Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,800 lectures free to access or download from the website.
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Видео The Formation of our Galaxy - Professor Joseph Silk канала Gresham College
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12 февраля 2016 г. 14:42:28
01:03:42
Яндекс.Метрика