Short Wave Folgen

Botanist and founder of #BlackBotanistsWeek Tanisha Williams explains why some leaves change color during fall and what shorter days and colder temperatures have to do with it.Plus, a bit of listener mail from you! Which you can always send by emailing shortwave@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

For much of the pandemic, some scientists had been pushing the Centers for Disease Control and Prevention to recognize that the coronavirus is spread through aerosols--very small particles that can linger in the air. The CDC did that this month, so we brought Senior Science Correspondent Maria Godoy onto the show to explain the distinction, and the implications for staying safe during the pandemic.Is the constant refining of the science behind the coronavirus leaving you confused? Send us your questions at shortwave@npr.org and we might answer them on a future episode.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy

Randall Munroe, the cartoonist behind the popular Internet comic xkcd, finds complicated solutions to simple, real-world problems. In the process, he reveals a lot about science and why the real world is sometimes even weirder than we expect. His latest book is called How To: Absurd Scientific Advice for Common Real-World Problems. (Encore episode.)Here's more on nuclear tests of bottled beverages from nuclear historian Alex Wellerstein.Email the show at shortwave@npr.org.Learn more about sponsor message choices: podcastchoices.com/adchoicesNPR Privacy Policy