Why Society Needs Astronomy and Cosmology - Dr Roberto Trotta
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Fundamental research into astronomy, cosmology and particle physics is a luxury that humankind cannot do without. The cultural, technological and scientific returns far outweigh the costs... The transcript and downloadable versions of the lecture are available from the Gresham College website: http://www.gresham.ac.uk/lectures-and-events/why-society-needs-astronomy-and-cosmology 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 1,900 lectures free to access or download from the website. Website: http://www.gresham.ac.uk Twitter: http://twitter.com/GreshamCollege Facebook: https://www.facebook.com/greshamcollege Instagram: http://www.instagram.com/greshamcollege For all information about Dr Roberto Trotta: http://robertotrotta.com/
Comments
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Marvelous lecture, presented in a very approachable style. The expanding universe is, of course, not news but the way it is described here (20:37) really brought home the fact that that expansion is not simply within space, but within space-time.
"...we imagine them [galaxies] to be scattered on top of an expanding universe, and we would be moving away from every other galaxy as well, as the fabric of space-time itself grows with time" -
Thank you :@)) Superb lecture. I also applaud greschamcollege for keeping some education free - truly I thank you
46m 46sLenght
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