SciShow: Do We Need a Negative Leap Second?

Teacher or professor: SciShow
Subject: Science
Content of the Lesson: Go to http://Brilliant.org/SciShow to try out Brilliant’s Daily Challenges. Sign up now and get 20% off an annual Premium subscription. Did you know that last year we had 28 of the fastest days ever recorded? Earth's rotation can be affected by a number of things, and scientists think we might someday need an unprecedented adjustment: deleting a second! Hosted by: Hank Green 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, Drew Hart, Jeffrey Mckishen, James Knight, Christoph Schwanke, Jacob, Matt Curls, Christopher R Boucher, Eric Jensen, Adam Brainard, Nazara Growing Violet, Ash, Laura Sanborn, Sam Lutfi, Piya Shedden, Katie Marie 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.timeanddate.com/time/earth-faster-rotation.html https://www.nist.gov/pml/time-and-frequency-division/leap-seconds-faqs https://royalsocietypublishing.org/doi/10.1098/rspa.2016.0404 https://www.pmel.noaa.gov/elNino/faq https://link.springer.com/article/10.1007/s00190-010-0416-0 https://itunews.itu.int/en/NotePrint.aspx?Note=4268 https://www.itu.int/en/ITU-R/Documents/ITU-R-FAQ-UTC.pdf https://www.iers.org/IERS/EN/DataProducts/ICRF/ICRF/icrf.html https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2014GL059948 https://esd.copernicus.org/articles/8/1009/2017/esd-8-1009-2017.html https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf http://www.astronomy.ohio-state.edu/~pogge/Ast161/Unit4/tides.html https://www.nationalgeographic.com/science/article/120222-earth-spin-faster-time-oceans-el-nino-science Image Sources: https://earthobservatory.nasa.gov/features/ElNino https://commons.wikimedia.org/wiki/File:Usno-mc.jpg https://en.wikipedia.org/wiki/El_Ni%C3%B1o%E2%80%93Southern_Oscillation


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