The average adult at rest inhales and exhales between 7 to 8 liters of air each minutes. Check out this HowStuffWorks podcast to learn how much oxygen a person uses during a day of inhalation and exhalation. Less

Marshmallows are an old candy -- they've been around since the 1800s. The name marshmallow comes from the original recipe, which called for sap from the marshmallow plant. Check out this HowStuffWorks to learn more about the history of marshmallows. Less

Although the way glow sticks work at first seems almost magical, it's actually pretty simple. They provide a purely chemical source of light. A glow stick is a sealed, see-through plastic pipe containing a fluorescent dye and two different liquids. In entertaining episodes our Chemical Reporter answers questions of our Podcast listeners on Chemistry in our everyday life. Less

A lightyear is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this podcast from HowStuffWorks to learn more about astronomy. Less

Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights. Less

Hot dogs were first created in Frankfurt, Germany. But what exactly are they made from? Check out this HowStuffWorks podcast to learn more about the mysterious ingredients of hot dogs. Less

Many spray can lids have a tiny hole at the top. Check out this HowStuffWorks podcast to learn more about spray cans, shipping, and air pressure. Less

Guest Stewart Swerdlow discussing 'State of the World and Answers Listeners Questions. www.expansions.com Less

Guest Stewart Swerdlow discussing 'State of the World and Answers Listeners Questions. www.expansions.com Less

The embalming process is designed to keep the body preserved until the funeral, but how exactly does it work and what happens to bodily fluids like blood? Get the gory details in this HowStuffWorks podcast. Less

The latest news from the team behind BBC Focus Magazine - a popular UK-based science and technology magazine. To find out more, visit http://www.focusmag.co.uk/ Less

When people get a rash from poison ivy, their bodies are reacting to a chemical called urushiol. Check out this HowStuffWorks podcast to learn more about poison ivy rashes. Less

When people get a rash from poison ivy, their bodies are reacting to a chemical called urushiol. Check out this HowStuffWorks podcast to learn more about poison ivy rashes. Less

After the advent of liquid crystal displays, or LCDs, everybody nowadays has at least heard the term 'liquid crystal'. The high-tech screens are everywhere: in computer monitors, cell phones, digital cameras, and calculators. In entertaining episodes our Chemical Reporter answers questions of our Podcast listeners on Chemistry in our everyday life. Less

Guest Jesse Marcel, Jr., The Roswell Legacy - the Untold Story of the First Military Officer at the 1947 Crash Site! The Only Authorized Version of the Marcels' Story! www.marceljr.com Less

Guest Nancy Ogren with an Astrological Update, State of our World, and Answers Listeners Questions. www.nancymillerogren.com Less

Guest Jesse Marcel, Jr., The Roswell Legacy - the Untold Story of the First Military Officer at the 1947 Crash Site! The Only Authorized Version of the Marcels' Story! www.marceljr.com Less