Periodic Table

One study from 2018 found that Major League Baseball umpires blow about 14 calls every game. That’s 34,000 bad calls every year. And it makes a difference. A blown strike call can decide a win or a loss, a championship or six months at home, wondering what could have been. And wh ... Show More

A missing car reveals the confusing rules, murky fees, and private actors behind modern towing. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org. Service Request ... Show More

In a place where losing power can turn deadly, keeping the lights on is a high-stakes balancing act. What infrastructure mystery keeps you up at night? Submit your Service Request by recording a voice memo with your question and emailing it to servicerequest@99pi.org. Service Req ... Show More

<p>The periodic table is an invaluable tool for scientists across the planet -- but how does it work? In this episode, Allison and Robert explore the creation of the periodic table. Tune in to learn more about the history and structure of the periodic table.</p><p> </p> Learn mor ... Show More

If you’ve ever wanted to listen to two totally untrained, non-chemists who are fully unqualified to explain how the periodic table works nervously explain how the periodic table works, then this episode is for you. Chemistry majors, be warned.See omnystudio.com/listener for priva ... Show More

You’ve seen it in your science classrooms, and there was probably a copy of it on the inside cover of your chemistry book. Maybe if you are a real nerd, you might even have your own personal copy. Yet its very creation was a revolutionary breakthrough that helped scientists and ... Show More

Tabla periódica 

<p>Richard looks at the periodic table for your GCSE Chemistry exam. In this episode, he will look at how the periodic table developed and what the key features of the periodic table are. Ideal for preparing your for GCSE Chemistry exam. For more info visit <a href="https://www.s ... Show More

<p>Did you know that Gandhi hated iodine? Or that Silicon Valley was almost called Germanium Valley? Our producer <a href= "https://www.sciencehistory.org/profile/rigoberto-hernandez" target="_self" data-cke-saved-href= "https://www.sciencehistory.org/profile/rigoberto-hernandez" ... Show More

The only thing more complicated than an atomic clock is researching how they work and then figuring out how to explain it to other people. But believe us, they are fascinating. Even if you don’t care about clocks or atoms you’ll still like this episode.   See omnystudio.com/liste ... Show More

Many listeners and past guests on WSIRN have shared their stories of reading dry spells due to chronic illness, anxiety, and disability. Today’s guest Kate Mitchell has experienced polar opposites in her reading life, going from a period of time when reading was literally her job ... Show More

<p>Richard looks at the periodic table for your GCSE Chemistry exam. In this episode, he will look at how the periodic table developed and what the key features of the periodic table are. Suitable for AQA, OCR, Edexcel, CIE and WJEC exam boards. Ideal for preparing your <a href=" ... Show More

There are rare chemical elements, and then there is tennessine. Only a couple dozen atoms of the stuff have ever existed. For the 150th anniversary of the periodic table, NPR science correspondent Joe Palca shares the convoluted story of one of the latest elements to be added. Fo ... Show More