We Use Black Holes to Study Tectonic Plates

The ground under our feet is constantly moving, and to measure these movements, researchers have turned to an unlikely helper: quasars that are millions of light-years away.

Hosted by: Stefan Chin

SciShow has a spinoff podcast! It's called SciShow Tangents. Check it out at http://www.scishowtangents.org
----------
Support SciShow by becoming a patron on Patreon: https://www.patreon.com/scishow
----------
Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever:

Silas Emrys, Charles Copley, Drew Hart, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Lehel Kovacs, Adam Brainard, Greg, GrowingViolet, Ash, Laura Sanborn, Sam Lutfi, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, charles george, Alex Hackman, Chris Peters, Kevin Bealer

----------
Looking for SciShow elsewhere on the internet?
Facebook: http://www.facebook.com/scishow
Twitter: http://www.twitter.com/scishow
Tumblr: http://scishow.tumblr.com
Instagram: http://instagram.com/thescishow
----------
Sources:
https://www.jstor.org/stable/24976084?seq=1
https://svs.gsfc.nasa.gov/10964
https://cddis.nasa.gov/Techniques/VLBI/VLBI_Overview.html
http://adsabs.harvard.edu/full/1993IAUS..156..133C
http://adsabs.harvard.edu/full/1988JRASC..82..221G
https://www.sciencedirect.com/topics/earth-and-planetary-sciences/very-long-baseline-interferometr
https://link.springer.com/chapter/10.1007/978-3-642-59745-9_6
https://www.astro.umd.edu/resources/introastro/quasars.html
https://www.iers.org/SharedDocs/Publikationen/EN/IERS/Publications/tn/TechnNote26/tn26_17.pdf?__blob=publicationFile&v=1
https://earthdata.nasa.gov/learn/sensing-our-planet/beacons-in-the-sky-help-monitor-earth-s-orientation-in-space

Image Sources:
https://svs.gsfc.nasa.gov/10964
https://svs.gsfc.nasa.gov/2953
https://commons.wikimedia.org/wiki/File:Plates_tect2_en.svg
https://commons.wikimedia.org/wiki/File:Tectonic_plates_boundaries_physical_World_map_Wt_180degE_centered-en.svg
https://commons.wikimedia.org/wiki/File:1418_Auditory_Brainstem_Mechanisms.jpg
https://commons.wikimedia.org/wiki/File:Artist%27s_rendering_ULAS_J1120%2B0641.jpg
https://commons.wikimedia.org/wiki/File:Bright_halos_around_distant_quasars.jpg
https://www.nasa.gov/image-feature/quasars-rip-across-galaxies-like-tsunamis
https://www.nasa.gov/audience/forstudents/k-4/dictionary/Quasar.html
https://www.nasa.gov/feature/goddard/2020/nasas-webb-to-study-quasars-and-their-host-galaxies-in-three-dimensions
https://commons.wikimedia.org/wiki/File:The_Southern_Milky_Way_Above_ALMA.jpg
https://commons.wikimedia.org/wiki/File:Smithsonian_Submillimeter_Array.jpg
https://space-geodesy.nasa.gov/techniques/VLBI.html
https://svs.gsfc.nasa.gov/10964
https://www.eso.org/public/videos/eso1122c/
https://esahubble.org/images/heic1902a/
https://commons.wikimedia.org/wiki/File:Earth_cutaway_schematic-en.svg

Видео We Use Black Holes to Study Tectonic Plates канала SciShow