01381cgm a2200313 i 4500 2550311483 TxAuBib 20240906120000.0 r 150908s2015||||||||||||||||||||||||und|u 1148123 Kanopy (OCoLC)921960837 VDU eng VDU TxAuBib rda Abell 2218: A Massive Gravitational Lens [Kanopy]. [San Francisco, California, USA : Kanopy Streaming, 2015. 1 online resource (streaming video file.) tdi rdacontent c rdamedia cr rdacarrier Title from title frames. In Process Record. Features: David M. Meyer Ph.D., University of California, Los Angeles. Originally produced by The Teaching Company/The Great Courses in 2012. One of the consequences of Einstein's general theory of relativity is evident in Hubble's picture of the galaxy cluster Abell 2218. Investigate the physics of this phenomenon, called gravitational lensing, and discover how Hubble has used it to study extremely distant galaxies as well as dark matter. Mode of access: World Wide Web. Astronomy and Aeronautics. Kanopy (Firm). https://USERNAME.kanopy.com/node/148124 https://www.kanopy.com/node/148124/external-image