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| Name | How do we know the Universe is expanding? |
| Video Uploader | Video From The Science Asylum |
| Upload Date | This Video Uploaded At 27-04-2017 00:08:07 |
| Video Discription | Cosmological redshift was our first clue the universe was expanding. A century ago, Edwin Hubble discovered galaxies outside our own supercluster are all moving away from us. But how do we get from redshift to an expanding universe? That's the tricky part and most people get it wrong. ________________________________ VIDEO ANNOTATIONS/CARDS Is The Universe Infinite: https://youtu.be/fApKpDGGDYk What is the Universe expanding into? https://youtu.be/0B4tj9c0vG8 How Do We Know Things About Stars? https://youtu.be/lAu0wenIAIE What the HECK is Light?! http://youtu.be/m2-UJAEJzcc ________________________________ RELATED YOUTUBE VIDEOS PBS Space Time on Cosmological Redshift: https://youtu.be/QXfhGxZFcVE PBS Space Time on the CMB: https://youtu.be/3tCMd1ytvWg ________________________________ HUGE THANK YOU TO THESE PATRONS ** Andy Kirkham, Nikko Lai, Clint Cloys, Evgeny, Rick Finn, Preston From, Christian McCracken ** ________________________________ SUPPORT THE SCIENCE ASYLUM Patreon: http://www.patreon.com/ScienceAsylum Advanced Theoretical Physics (eBook): https://gumroad.com/l/ubSc Merchandise: http://shop.spreadshirt.com/scienceasylum/ ________________________________ OTHER SOURCES https://arxiv.org/abs/1204.5493 https://arxiv.org/abs/astro-ph/0211011 http://www.astro.ucla.edu/~wright/cosmology_faq.html Wavelength to RGB: http://www.wolframalpha.com/widgets/view.jsp?id=23c041a005eec913db5a74171ea72e63 ________________________________ LINKS TO COMMENTS Expanding? - seastormsinger: https://www.youtube.com/watch?v=Vmi_h5A8B2k&lc=z12pzpxwirmiensly23we3wj3nycxxvjq04 Redshift - Yair Eshel Cahansky: https://www.youtube.com/watch?v=fApKpDGGDYk&lc=z13uhj2r1lb5yxeuu23jh3nx4ubrwdunp FLOWER Metric - Guest Informant: https://www.youtube.com/watch?v=fApKpDGGDYk&lc=z12zwpmjcrrbcxspj04cdf0yylucdjnysro0k List of Topics - aThrasheR: https://www.youtube.com/watch?v=inPcQeYWVT8&lc=z12iwdxyvruku11hg04chbz5ts2xcxzg0i4 ________________________________ IMAGE CREDITS Cosmic Microwave Background: http://www.esa.int/Our_Activities/Space_Science/Planck/Planck_reveals_an_almost_perfect_Universe Spectroscope at Lick Observatory: https://commons.wikimedia.org/wiki/File:Star-Spectroscope.jpg Thumbnail Background: https://www.nasa.gov/image-feature/goddard/2017/hubble-spots-two-interacting-galaxies-defying-cosmic-convention |
| Category | Education |
| Tags | cosmology | redshift | cosmological redshift | expanding universe | doppler effect | universe | physics | astronomy | astrophysics | science |
