Mapping the universe: dark energy, black holes, and gravity – with Chris Clarkson скачать в хорошем качестве

Mapping the universe: dark energy, black holes, and gravity – with Chris Clarkson

How can we map the universe and its galaxies? What's the evidence for dark matter and dark energy? And how has Einstein's general theory of relativity been proven by modern technology? Watch the Q&A here:    • Q&A: Mapping the universe: dark energy, bl...   Subscribe for regular science videos: http://bit.ly/RiSubscRibe In this talk Chris Clarkson describes how cosmological surveys map the vast cosmic web of galaxies on scales so far only envisaged in computer simulations. Unravelling this delicate web will reveal not only the nature of the Big Bang itself, but the essence of dark energy — and with it, the future of the Universe. This talk was recorded at the Ri on 25 April 2023. 00:00 Intro 01:58 Mapping our solar system and galaxy 8:16 Looking at other galaxies 13:08 Mapping the universe with galaxy surveys 15:32 What does the whole universe look like? 23:22 A timeline of the universe’s evolution 25:42 How do we know what the universe looks like? 27:28 Einstein’s theory of gravity 30:28 Spacetime bends and moves 33:40 Black holes predicted by Einstein 35:35 Gravitational waves 37:58 The universe is expanding – how fast? 40:02 The evidence for dark matter 41:48 The evidence for dark energy 43:35 How much is the universe expanding over time? 45:01 How can we explain the structure of the universe? 53:18 The mystery of dark energy and dark matter 56:33 Inflation at the big bang 57:39 The next generation of surveys Chris Clarkson is a cosmologist working at Queen Mary University of London. He works mainly on the theory of large scale structure of the universe but has worked on many aspects of gravity and cosmology, including the big bang, gravitational waves and black holes. He is currently Head of the Astronomy Unit at QMUL, having previously worked at the University of Cape Town as Head of the Cosmology Group. He studied for his PhD in Glasgow a long time ago, and undertook postdocs in Canada, South Africa and in the UK. -- A very special thank you to our Patreon supporters who help make these videos happen, especially: modsiw, Anton Ragin, Edward Unthank, Robert L Winer, Andy Carpenter, William Hudson Don McLaughlin, efkinel lo, Martin Paull, Ben Wynne-Simmons, Ivo Danihelka, Kevin Winoto, Jonathan Killin, Stephan Giersche, William Billy Robillard, Jeffrey Schweitzer, Frances Dunne, jonas.app, Tim Karr, Alan Latteri, David Crowner, Matt Townsend, THOMAS N TAMADA, Andrew McGhee, Paul Brown, David Schick, Dave Ostler, Osian Gwyn Williams, David Lindo, Roger Baker, Rebecca Pan -- The Ri is on Patreon:   / theroyalinstitution   and Twitter:   / ri_science   and Facebook:   / royalinstitution   and TikTok:   / ri_science   Listen to the Ri podcast: https://anchor.fm/ri-science-podcast Our editorial policy: https://www.rigb.org/editing-ri-talks... Subscribe for the latest science videos: http://bit.ly/RiNewsletter Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link. #MappingTheUniverse, #DarkEnergy, #BlackHoles, #GravityExplained, #ChrisClarksonScience