Every Little Thing

Listeners Marmie and Ryan have a quarantine quibble: How many times should you shuffle a deck of playing cards? Marmie says three, while Ryan says four or more. The couple place their bets and go all-in with applied mathematician Steven Strogatz and a full house of card-world VIPs. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Listener Erik saw a mysterious glow in the water during a trip to the beach, and he wants to know more. ELT talks to the “Jacques Cousteau of glow,” a scientist who has spent decades deep diving for answers. Guest: biologist and ocean researcher Edie Widder. Thanks to Eelke Dekker for the seagull and ocean sounds we used in this episode. Thanks also to Steven Haddock, Michael Latz, Matt Davis, Vincent Pieribone, and Severine Martini. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Caller Hank wants to know where the sand on his central California beach came from. ELT gets the surprising scoop on how beaches are born. Guest: Kiki Patsch, California State University Channel Islands. Special thanks to Gary Griggs. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Flora is out this week force feeding her niblings flamingo facts, so we’re rerunning one of our favorite episodes. Does swearing make you more powerful? Plus, we talk to someone who turns the “mother f*ckers” into “manhole covers” for the TV versions of movies. Guests: Cognitive scientist Ben Bergen, author of What the F***; Gwen Whittle, supervising sound editor at Skywalker Sound. Thanks to caller Mark for the monkey flippin’ question, and to Mark’s dad Steve.  Learn more about your ad choices. Visit podcastchoices.com/adchoices

Flora is hosting the Chapped Cheeks Book Club this week, so we’re revisiting one of our favorite episodes: How do U.S. postage stamps come to be? ELT explores the secret world of the Citizens’ Stamp Advisory Committee, the group that decides what gets stuck on America’s envelopes. Guests: Bill Gicker, manager of stamp development at USPS; Jessica, ex-CSAC member; Kam Mak, artist and stamp illustrator. Thanks to caller Elizabeth. “Mr. Stampman” performed by Bobby Lord, Matthew Boll, MR Daniel, and Julia Kaplan. Mail your stamp idea to: Stamp Development / Attn: Citizens' Stamp Advisory Committee / 475 L’Enfant Plaza SW, Room 3300 / Washington, DC 20260-3501. Remember: One idea per letter! Learn more about your ad choices. Visit podcastchoices.com/adchoices

Flora is away this week, so we’re revisiting one of our favorite episodes — about a summer visitor no one wants. Caller Jeremy has a problem: fruit flies have moved into his apartment, and he needs to know how they got there. ELT finds out where Jeremy’s freeloading flatmates came from. Guests: Biologist Marcus Stensmyr, Lund University. Chemical ecologist Kevin Cloonan, Acadia University, Nova Scotia, Canada. Thanks to Jeremy and all the listeners who shared their gnat knowledge. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Flora is away this week at a flamingo fanciers convention, so we’re revisiting one of our favorite shows — a two-part, deep dive into cheerleading. It’s not all smiles and ponytails. Guests: cheerleading researcher and professor at the University of Alabama Natalie Adams; Barbara Hazlewood; Sharita Richardson, cheerleading researcher, instructional coach at North Carolina A&T State University, and founder of Black Girls Cheer. Thanks to caller Jessica for the question. Special thanks to Vonciel Baker, one of the original seven Dallas Cowboys Cheerleaders and to Dee Brock, former manager of the Dallas Cowboys Cheerleaders. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Listener Amy gets lost a lot. She wants to know if some people are naturally better at finding their way, and whether there’s hope for her. An expert locates some answers. Plus, how the best navigators in the world get around. Guests: navigation and orientation researcher Giuseppe Iaria; former London cab driver David Styles. Thanks to caller Amy. Learn more about your ad choices. Visit podcastchoices.com/adchoices

The average tree squirrel can bury up to 10,000 nuts every fall. How do they keep tabs on that stash? Guest: animal behaviorist and pro squirrel watcher Mikel Maria Delgado exposes the secrets of squirrel pantry maintenance. Thanks to caller Cayra. Learn more about your ad choices. Visit podcastchoices.com/adchoices

This weekend, SpaceX and NASA successfully launched the first crewed spacecraft from U.S. soil in almost a decade. Preparing for a mission to space takes astronauts years, but listener Daniel wants to know — what does the other end of that journey look like? What happens when space travelers come home? Guest: record-holding NASA astronaut Christina Koch. Learn more about your ad choices. Visit podcastchoices.com/adchoices