You have probably noticed that aluminum foil has a shiny side and a dull side. Why? What’s the difference - and why do some recipes call for it to be either shiny side up or shiny side down? This episode begins with an explanation. https://culinarylore.com/food-science:aluminum-foil-shiny-side-up-or-down/
How did radio technology help create the quartz watch? How did railroad technology reshape how we celebrate Christmas? How did the telegraph change the way we speak? These are just a few of the fascinating ways technologies have had an important impact on how we live. Ainissa Ramirez, is a material scientist and author of the book The Alchemy of Us: How Humans and Matter Transformed One Another (https://amzn.to/2UyQkCy) . Listen as she takes us on a journey through some of the fascinating technologies that continue to have a powerful impact on how we live our lives.
We humans are one of a very few species that sweat through our skin. As you probably know, the purpose of sweating is to help you stay cool. What is so interesting is how the whole system works. You have millions of sweat glands and what kind of climate you spent your toddler years in likely affected how many of your sweat glands were activated and how efficiently the work. And that’s just scratching the surface of the perspiration story. Science writer Sarah Everts has gone deep into the research on sweating for her book, The Joy of Sweat: The Strange Science of Perspiration (https://amzn.to/3AwyPTX) and she is here to explain what she found.
Airplanes have oxygen masks in the event of an emergency. So where do they keep the oxygen? And why is it that they tell you to tug on the mask to begin the flow of oxygen? Listen because the answer to that question is really going to surprise you. https://www.scienceabc.com/eyeopeners/do-airplanes-really-carry-oxygen-for-the-oxygen-masks.html
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