DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/ravGth6R5C8). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Moore's Law has given us exponential improvements in computer technology for many decades, benefiting everything from astrophysics to iPhones, but is it about to end? Jamie Teherani a Columbia Professor of Electrical Engineering, swung by the Cool Worlds Lab to explain what Moore's Law is all about and predict it's future. ::More about this Video:: ► Jamie Teherani explains how a computer works video: https://youtu.be/8cVsgFN3hSM ► Video of a black hole tidal disruption event courtesy of NASA: https://youtu.be/hu6hIhW00Fk ► Cool Worlds Lab website: http://coolworlds.astro.columbia.edu ► Columbia University Department of Astronomy: http://www.astro.columbia.edu ► Outro music by Daft Punk "Harder, Better, Stronger, Faster": http://www.daftpunk.com and http://smarturl.it/DaftPunkiTunes ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/pwTYfI9JUl8). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Visit our sponsor, Private Internet Access to get digital privacy for $2.08/month: https://www.privateinternetaccess.com/CoolWorlds The search for alien intelligence is usually a framed as a search for life around other stars. But some have suggested that we should look within the Solar System instead - seeking so-called "Lurkers", alien probes sent here to monitor us. Today we explore this interesting idea, the motivations behind it and where we might actually try surveying. Written & presented by Prof David Kipping → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday,A. Jones, S. Brownlee, G. Fulton, N. Kildal, M. Lijoi, Z. Star, E. West, T. Zanjonc, C. Wolfred, F. Rebolledo, L. Skov, E. Wilson, A. de Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, V. Alexandrov, L. Macchia, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, F. Linker, J. Rockett, N. Fredrickson, B. Mlazgar, D. Holland, J. Alexander, E. Hanway, J. Molnar, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. van Exter, S. Roulier, B. Smith, P. Masterson, A. Cook, J. Martinez, K. Nardone, L. Feng, M. Rydqvist, P. Schnakenburg & A. Moore. ::References:: ► Bohn et al. 2020, Two Directly Imaged, Wide-orbit Giant Planets around the Young, Solar Analog TYC 8998-760-1, ApJL 898, 16: https://arxiv.org/abs/2007.10991 ► Benistry et al. 2021, A Circumplanetary Disk Around PDS70 c, ApJL 916, 2: https://arxiv.org/abs/2108.07123 Pale Blue Dot NASA JPL/Caltech https://www.nasa.gov/feature/jpl/pale-blue-dot-revisited ► Benford 2019, Looking for Lurkers: Co-orbiters as SETI Observables, AJ 150, 5: https://ui.adsabs.harvard.edu/abs/2019AJ....158..150B ► Hippke 2020, Interstellar Communication Network. I. Overview and Assumptions, AJ 159, 10: https://arxiv.org/abs/1912.02616 ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Brad Hill - Fragile [https://open.spotify.com/album/1QDRubBTOO50Kwb8MtRwjF] ► Chris Zabriskie - Cylinder Four ► Atlas - Waking Up ► Falls - Life in Binary ► Falls - Ripley ► Joachim Heinrich - Cassiopeia ► Brad Hill - A Slowly Lifting Fog [https://open.spotify.com/album/0i7df7bwsTHcJ7zRCHqq1G] ► Chris Zabriskie - Cylinder Five ► Chris Zabriskie - Cylinder Seven ► Joachim Heinrich - Stratosphere ► Indive - Trace Correction ::Video clip credits:: (See bit.ly/3lnqk8j for links) ► Licensed clips via Envato ► PHL @ UPR Arecibo, ESO ► ESA/Hubble, M. Kornmesser ► ESA/NASA/JPL/University of Arizona ► National Space Society/NASA ► ESO/L. Calçada, ALMA (ESO/NAOJ/NRAO)/Benisty et al. ► NASA’s Goddard Space Flight Center ► P. Horálek/ESO ► ESO ► ESO / L. Calçada https://eventhorizontelescope.org/ ► Eameses ► NASA/Goddard Space Flight Center, NOAA, Lockheed Martin ► NASA ► ESO, M. Kornmesser, L.Calcada ► NASA/ESA/M.Kornmesser ► NASA's Goddard Space Flight Center ► NASA Jet Propulsion Laboratory ► California Academy of Sciences ► NASA’s Goddard Space Flight Center ► NASA/Jet Propulsion Laboratory-Caltech ► NASA/Goddard Space Flight Center ► NASA/JPL/SwRI ► ESA/Hubble, NASA, ESO, M. Kornmesser ::Film/TV clips used:: ► The Straight Story (1999) Buena Vista Pictures Distribution ► The Truman Show (1998) Paramount Pictures ► Gravity (2013) Warner Bros. Pictures ► Contact (1997) Warner Bros. Pictures ► First Man (2018) Universal Pictures ► Rogue One: A Star Wars Story (2016) Walt Disney Studios Motion Pictures ► Interstellar (2014) Paramount Pictures ► Star Trek: Voyager (Paramount Television) Thumbnail by pc8650 https://wallhere.com/en/wallpaper/1367765 ::Chapters:: 00:00 Vistas of Other Worlds 07:52 Imaging via Visitation 11:00 Lurkers 13:15 Sponsorship 14:18 Intercepting LEO Lurkers 16:57 Lunar Lurkers 18:00 Distant Lurkers 21:08 Radio Lurkers 22:46 Flyby 25:49 Concluding Remarks #Lurkers #Technosignatures #CoolWorlds

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/16mROb2O2rA). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Astronomers just announced the discovery of seven Earth-sized transiting planets around TRAPPIST-1! Cool Worlds Lab astronomer Moiya McTier explains why this is so exciting, what we know and don't know so far, and what the prospects for life are in this fascinating system. ::More about this Video:: ► Gillon et al. (2017), "Seven temperate terrestrial planets around the nearby ultracool dwarf star TRAPPIST-1": http://www.nature.com/nature/journal/v542/n7642/full/nature21360.html ► O'Malley-James & Kaltenegger (2017), "UV Surface Habitability of the TRAPPIST-1 System": https://arxiv.org/abs/1702.06936 ► TRAPPIST-1 website: www.trappist.one ► Moiya McTier's website: http://moiyamctier.weebly.com ► Outro music by Taylor Davis: https://www.youtube.com/watch?v=dl9kI1yQKZk ::Playlists For Channel:: Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorlds Cool Worlds Research ► http://bit.ly/CoolWorldsResearch Guest Videos ► http://bit.ly/CoolWorldsGuests Q&A Videos ► http://bit.ly/CoolWorldsQA Science of TV/Film ► http://bit.ly/ScienceMovies ::Follow us:: SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribe Cool Worlds Lab http://coolworlds.astro.columbia.edu Twitter https://twitter.com/david_kipping Instagram https://www.instagram.com/cool.worlds THANKS FOR WATCHING!!

DO NOT TIP. This is an unofficial YouTube mirror of CoolWorldsLab (https://youtu.be/an0M-wcHw5A). If you want to tip CoolWorldsLab please visit https://www.coolworldslab.com/support. Convince CoolWorldsLab to join Odysee! ----------------------------- Is faster-than-light (FTL) travel possible? In most discussions of this, we get hung up on the physics of particular ideas, such as wormholes or warp drives. But today, we take a more zoomed out approach that addresses all FTL propulsion - as well as FTL messaging. Because it turns out that they all allow for time travel. Join us today as we explore why this is so and the profound consequences that ensue. Special thanks to Prof Matt Written & presented by Prof David Kipping. Special thanks to Prof Matt Buckley for fact checking and his great blog article that inspired this video (http://www.physicsmatt.com/blog/2016/8/25/why-ftl-implies-time-travel) → Support our research program: https://www.coolworldslab.com/support → Get Stash here! https://teespring.com/stores/cool-worlds-store THANK-YOU to our supporters D. Smith, M. Sloan, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, A. De Vaal, M. Elliott, B. Daniluk, M. Forbes, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, H. Jensen, J. Rockett, N. Fredrickson, D. Holland, E. Hanway, D. Murphree, S. Hannum, T. Donkin, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, F. Van Exter, S. Roulier, B. Smith, P. Masterson, R. Sievers, G. Canterbury, J. Kill, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, T. Wheeler, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, J. Alexander, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, S. Krasner, W. Evans, J. Curtin, J. Sturm, RAND Corp, T. Kordell, T. Ljungberg & M. Janke. ::References:: ► Alcubierre, M., 1994, "The warp drive: hyper-fast travel within general relativity", Classical and Quantum Gravity, 11 L73: https://arxiv.org/abs/gr-qc/0009013 ► Pfenning, M. & Ford, L., 1997, "The unphysical nature of Warp Drive", Classical and Quantum Gravity, 14, 1743: https://arxiv.org/abs/gr-qc/9702026 ► Finazzi, S., Liberati, S., Barceló, C., 2009, "Semiclassical instability of dynamical warp drives", Physical Review D., 79, 124017: https://arxiv.org/abs/0904.0141 ► McMonigal, B., Lewis, G., O'Byrne, P., 2012, "Alcubierre warp drive: On the matter of matter", Physical Review D., 85, 064024: https://arxiv.org/abs/1202.5708 ► Everett, A., 1996, "Warp drive and causality", Physical Review D, 53, 7365: https://journals.aps.org/prd/abstract/10.1103/PhysRevD.53.7365 ► For a more rigorous breakdown of the axis flipping in Minkowski spacetime, see Chapter 3 of "Special Relativity" by Valerio Faraoni (Chapter 3 is also available here https://williamsgj.people.cofc.edu/Minkowski%20Spacetime.pdf) ::Music:: Music licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], or via Creative Commons (CC) Attribution License (https://creativecommons.org/licenses/by/4.0/), or with permission from the artist ► Hill - An Interesting Retirement [https://open.spotify.com/album/3S2hu2EP1lYOXHzwEHcclb] ► Joachim Heinrich - Stjärna ► Falls - Life In Binary ► Chris Zabriskie - Cylinder Two ► Chris Zabriskie - Cylinder Five ► Chris Zabriskie - Cylinder Four ► Falls - Ripley ► Caleb Etheridge - Always Dreaming ► Joachim Heinrich - Y ► Indive - Trace Correction ::Film/TV clips used:: ► Interstellar (2014) Paramount Pictures ► Contact (1997) Warnes Bros. ► The Imitation Game (2014) The Weinstein Company ► Star Trek: Generations (1994) Paramount Pictures ► Cosmos: Possible Worlds (2020) National Geographic Fox ► Stephen Hawking's Favorite Places (2016) Curiosity Stream ► Star Wars: The Empire Strikes Back (1980) 20th Century Fox ► Star Trek: Deep Space Nine (1993-1999) Paramount Television ► The Day The Earth Stood Still (2008) 20th Century Fox ► Stargate (1994) MGM/UA Distribution Co. ► Star Trek: Beyond (2016) Paramount Pictures ► Star Trek IV: The Voyage Home (1986) Paramount Pictures ► The Expanse (2015-2022) Legendary Television Distribution ► Star Trek: The Next Generation (1987-1994) Paramount Television ► Avengers: Endgame (2019) Walt Disney Studios Motion Pictures ► Star Trek: Enterprise (2001-2005) Paramount Television ► Back To The Future (1985) Universal Pictures ► Passengers (2016) Sony Pictures Releasing ► The Time Machine (Dreamworks) ► Alien: Covenant (2017) 20th Century Fox ► Star Trek (1966-1969) Paramount Television ► Tenet (2020) Warner Bros. Pictures ► Loki (2021-) Marvel Studios ► Somewhere In Time (1980) Universal Pictures ► The Assassination of Jesse James by the Coward Robert Ford (2007) Warner Bros. Pictures ► Star Trek: Into Darkness (2013) Paramount Pictures ► Logan (2017) 20th Century Fox ► Star Trek: First Contact (1996) Paramount Pictures ::Chapters:: 00:00 Introduction 06:52 Space Time Diagrams 12:51 Causality Violations 17:01 Paradoxes in Time 24:28 Outro and Credits #FasterThanLight #Alcubierre #CoolWorlds