Episode Details

Learn why the concept of zero is newer than you might think, how you can worry more productively, and why the Earth’s atmosphere might be rusting the moon. The Concept of Zero Is Newer Than You'd Expect by Reuben Westmaas Matson, J. (2009, August 21). The Origin of Zero. Scientific American. https://www.scientificamerican.com/article/history-of-zero/ What is the origin of zero? How did we indicate nothingness before zero? (2007, January 16). Scientific American. https://www.scientificamerican.com/article/what-is-the-origin-of-zer/ ‌Szalay, J. (2017, September 18). Who Invented Zero? Livescience.Com; Live Science. https://www.livescience.com/27853-who-invented-zero.html  Devlin, H. (2017, September 13). Much ado about nothing: ancient Indian text contains earliest zero symbol. The Guardian; The Guardian. https://www.theguardian.com/science/2017/sep/14/much-ado-about-nothing-ancient-indian-text-contains-earliest-zero-symbol  ‌Brahmagupta: Mathematician and Astronomer. (2020, February 20). The Story of Mathematics - A History of Mathematical Thought from Ancient Times to the Modern Day. https://www.storyofmathematics.com/indian_brahmagupta.html  How to Worry More Productively by Kelsy Donk Ro, C. (2020). The surprising upsides of worrying. Bbc.Com. https://www.bbc.com/future/article/20200824-why-worrying-isnt-as-bad-as-you-think Anisa Purbasari Horton. (2018, March 20). How I Learned To Worry Productively. Fast Company; Fast Company. https://www.fastcompany.com/40543707/how-i-learned-to-worry-productively  Skwarecki, B. (2017, March 20). How to Worry Productively. Vitals; Vitals. https://vitals.lifehacker.com/how-to-worry-productively-1793456809  What is Productive Worry? (2012). Psychology Today. https://www.psychologytoday.com/us/blog/anxiety-files/200805/what-is-productive-worry  Earth's Atmosphere May be Rusting the Moon by Grant Currin Has Earth’s oxygen rusted the Moon for billions of years? (2020). EurekAlert! https://www.eurekalert.org/pub_releases/2020-09/uoha-heo083120.php  Li, S., Lucey, P. G., Fraeman, A. A., Poppe, A. R., Sun, V. Z., Hurley, D. M., & Schultz, P. H. (2020). Widespread hematite at high latitudes of the Moon. Science Advances, 6(36), eaba1940. https://doi.org/10.1126/sciadv.aba1940 Kramer, M. (2020, September 8). Researchers find rust on the Moon. Axios; Axios. https://www.axios.com/moon-rust-4a473774-6aa4-4b25-994c-7ba3f032d307.html  NASA -  The Moon and the Magnetotail. (2020). Nasa.Gov. https://www.nasa.gov/topics/moonmars/features/magnetotail_080416.html  Subscribe to Curiosity Daily to learn something new every day with Ashley Hamer and Natalia Reagan (filling in for Cody Gough). You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap “enable” here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY  See omnystudio.com/listener for privacy information.