Thermal Delight

Somewhere between 85 to 95 percent of Black women in the United States have used a chemical hair relaxer at least once in their lifetime. It is a ubiquitous American product with a complicated legacy: it built Black wealth and opened economic doors, but also taught generations to ... Show More

A legendary typeface, a spectacular friendship breakup, and one extremely committed act of revenge. Subscribe to SiriusXM Podcasts+ to listen to new episodes of 99% Invisible ad-free and a whole week early. Start a free trial now on Apple Podcasts or by visiting siriusxm.com/podc ... Show More

Articles of Interest host Avery Trufelman joins Roman to tell the incredible story of the American military’s jacket problem: How should the military outfit its soldiers to make them as safe and effective as possible? The answer was the M43 Field Jacket, which not only changed wh ... Show More

Tim Harford tells the surprising story of air conditioning which was invented in 1902 to counter the effects of humidity on the printing process. Over the following decades “aircon” found its way into our homes, cars and offices. But air conditioning is much more than a mere conv ... Show More

<p>Air conditioners are a nifty -- and sometime life-saving -- invention, but how does an air conditioner make air cooler? What does a compressor do? What’s a swamp cooler? Tune in for answers to these questions and more in this episode of TechStuff.</p><p> </p> Learn more about ... Show More

Air conditioning has had a profound impact on modern life -- and in more ways than you might realize. In this trio of Invention episodes, Robert and Joe explore pre-AC cooling methods, the invention itself and the many ways it changed the shape (and temperature) of our lives. Lea ... Show More

<p>The Hot And Cold Past Of The Air Conditioner</p> <p>In the Northeast, the leaves have started changing colors, heralding the season of pumpkins, sweaters, and the smell of woodsmoke. But in some parts of the country, the heat hasn’t let up. In cities like Dallas, Phoenix, and ... Show More

<p><strong> </strong></p><br><p>It has gone from luxury to necessity, and there are over 2 billion air conditioning units in the world today.</p><p>In this episode, we'll take a look at how air conditioning got started, why people didn't mind being hot in the past, and what the t ... Show More

Muggy. Sticky. Miserable. For eons, that’s just what summer was. In fact, when air conditioning first became available, few people took advantage of it. Wasn’t summer supposed to be uncomfortable? This is the story of how people finally warmed up to the idea of keeping cool.You c ... Show More

We’re back with a hot new episode on staying cool! We’re talking about the history of air conditioning, our favorite frosty invention. Joy and co-host Maeve meet a sassy talking ice unicorn who is trying to find a place to chill out (and not melt!). Find out what chocolate, chewi ... Show More

Keeping things cold with electricity changed the world as we know it. In more ways than you might expect. See omnystudio.com/listener for privacy information.