Ever noticed that aluminum foil has a shiny side and a dull side? Why do you suppose that is? Maybe it is significant – after all some recipes call for it to be either shiny side up or shiny side down. But how much difference could it possibly make? Listen and find out. https://culinarylore.com/food-science:aluminum-foil-shiny-side-up-or-down/ Bet you didn’t know that radio technology helped to create the quartz watch. Or that railroad technology reshaped how we celebrate Christmas. And how in the world did the telegraph change the way we speak? These are just a few of the fascinating ways older technologies have had an significant impact on how we live today. 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 shape how we live our lives.  Humans are one of a very few species that actually sweat through the skin. The purpose of sweating is to help you stay cool. And how this cooling system works inside your body is really interesting. 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 they work today. There’s a lot to the story of human perspiration. 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.  You know if you have ever flown on an airplane, there are oxygen masks in the event of an emergency. So where do they keep the oxygen? And why do 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 PLEASE SUPPORT OUR SPONSORS! Zocdoc is the only FREE app that lets you find AND book doctors who are patient-reviewed, take your insurance, are available when you need them and treat almost every condition under the sun! Go to https://Zocdoc.com/SYSK and download the Zocdoc app for FREE. For the first time in NetSuite’s 25 years as the #1 cloud financial system, you can defer payments of a FULL NetSuite implementation for six months! If you’ve been sizing NetSuite up to make the switch then you know this deal is unprecedented - no interest, no payments - take advantage of this special financing offer at https://NetSuite.com/SYSK ! The Dell Technologies’ Black Friday in July event has arrived with limited-quantity deals on top tech to power any passion. Save on select XPS PCs and more powered by the latest Intel® Core™ processors. Plus, get savings on select monitors and accessories, free shipping and monthly payment options with Dell Preferred Account. Save today by calling 877-ASK-DELL ! Discover Credit Cards do something pretty awesome. At the end of your first year, they automatically double all the cash back you’ve earned! See terms and check it out for yourself at https://Discover.com/match Keep American farming and enjoy the BEST grass-fed meat & lamb, pastured pork & chicken and wild caught-Alaskan salmon by going to https://MoinkBox.com/Yum  RIGHT NOW and get a free gift with your first order! Let’s find “us” again by putting our phones down for five.  Five days, five hours, even five minutes. Join U.S. Cellular in the Phones Down For Five challenge! Find out more at https://USCellular.com/findus Learn more about your ad choices. Visit megaphone.fm/adchoices