In this episode of Tiny Show and Tell Us, we kick things off with a quick shout-out to a listener who started flossing thanks to a previous episode. Then we dive into the hidden history of the women “computers” at Harvard Observatory, including Henrietta Leavitt, who laid the foundation for modern astronomy with her groundbreaking discoveries including calculating the size of the Milky Way. Then we discuss the co-evolutionary arms race between passion vines and Heliconius butterflies, which includes fake eggs, toxic fruit, and impaled caterpillars.

We need your stories — they're what make these bonus episodes possible! Write in to [email protected] *or fill out this form* with your favorite science fact or science news story for a chance to be featured.

A transcript and references for this episode can be found at acs.org/tinymatters.

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In this milestone 100th episode of Tiny Matters we take you on a personal journey into what first inspired our passion for science. Sam shares the story of her childhood struggle with germophobia and the brain-altering bacteria that kicked it off, likely causing a condition called PANDAS: Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal Infections. PANDAS may have led to her OCD, but it also fueled Sam’s fascination with the microscopic world, germ theory, and the ways infections can shape our brains. Then Deboki dives into her early fascination with vaccines, inspired by the interests of her scientist parents. She shares the history of the polio vaccine — a story of victory but also tragedy that led to significant progress, both in terms of science and safety.

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In this episode of Tiny Show and Tell Us, we read an email from “baby sis” aka Binky aka Sam’s younger sister Caroline who writes in about an alarming pregnancy test that predates today’s at-home tests. Then we talk about a fascinating study that found a dead salmon showed brain activity in an MRI machine. Spoiler: It wasn’t actually alive, scientists just really needed to rethink MRI analysis. 

We need your stories — they're what make these bonus episodes possible! Write in to [email protected] *or fill out this form* with your favorite science fact or science news story for a chance to be featured.

A transcript and references for this episode can be found at acs.org/tinymatters.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Not a fan of daylight saving? Beyond the depressingly early sunsets, that may be because it’s messing with your circadian clock. In this episode of Tiny Matters, we ask, “How do organisms — from bacteria to sea anemones to humans — keep track of time?” We talk about circadian clocks and how both internal molecular changes and environmental cues called “zeitgebers,” which include things like light and food, synchronize biological rhythms and help all of us survive.

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In this episode of Tiny Show and Tell Us, we read an email from a listener who, as a kid, shared a fun fact with her classroom: polar bears have black skin. Her teacher not only told her she was wrong but embarrassed her in front of the other students. Well, it’s time to set the record straight. Polar bears do, in fact, have black skin and we do, in fact, love a grudge and are so glad to provide vindication. Then we talk about the hidden world of insect vibrational communication.

We need your stories — they're what make these bonus episodes possible! Write in to [email protected] *or fill out this form* with your favorite science fact or science news story for a chance to be featured.

A transcript and references for this episode can be found at acs.org/tinymatters.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

In today’s episode, we chat with author Sam Kean about his new book Dinner with King Tut and learn how researchers and citizen scientists are recreating ancient recipes, tools, and technologies — from wound remedies with pennies to inventive pottery glazed in blood — and how experimental archaeology is changing our understanding of the past. 

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In this episode of Tiny Show and Tell Us, we talk about different ways of turning pennies all of the colors of the rainbow. Then we discuss an ongoing NASA mission to touch the sun.

We need your stories — they're what make these bonus episodes possible! Write in to [email protected] *or fill out this form* with your favorite science fact or science news story for a chance to be featured.

A transcript and references for this episode can be found at acs.org/tinymatters.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Most of us know the story of the Titanic. In 1912, the massive — supposedly indestructible — steamship sank after hitting an iceberg on its first and only journey across the Atlantic Ocean. Titanic remained undiscovered on the seafloor, somewhere in the North Atlantic Ocean, for 73 years, until it was found nearly two miles beneath the surface. But now the ship might be disappearing again, this time for good. And the culprit is not another iceberg — it’s something much, much smaller.

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As we approach episode 100 of Tiny Matters, we wanted to talk about how it all got started nearly 4 years ago and where we are headed! How did Sam and Deboki become co-hosts? What have they learned about the types of stories and episodes they are drawn to? What happens if an interview goes poorly? What is the American Chemical Society (ACS)? How about Multitude? Will we get 100 MORE episodes of the show? And more...

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