Ep 21. Fiberglass Insulation, Wooden Ducks, Gumball Machines, Exhaust Systems

How It's Made season 3 episode 21 takes us on a journey to four very different manufacturing processes. First, we get an inside look at how fiberglass insulation is made. This material is essential in keeping our homes and buildings warm and energy-efficient. We see how glass fibers are melted down and then blown through a special machine that creates the batts of insulation. We also learn about the different materials that can be added to the insulation to help it resist fire, mold, and pests.

Next up is a visit to a workshop where handcrafted wooden ducks are made. These ducks are not only beautiful decorative pieces but also serve as decoys for hunters. We watch as a skilled craftsman uses a band saw to cut out the basic shape of the duck and then meticulously carves and sands it into a realistic form. The duck is then painted and finished with a coat of varnish.

Moving on, we head to a factory where gumball machines are produced. These classic vending machines have been a fixture in stores, restaurants, and other public places for decades. We see how the various parts of the machine are made and assembled, including the coin slot, dispensing mechanism, and glass globe. We also learn about the different types of gumballs that can be dispensed, from traditional fruit flavors to unique specialty varieties.

Finally, we take a look at the manufacturing process for exhaust systems. These components are a crucial part of any vehicle, helping to remove harmful gases and emissions from the engine. We see how the exhaust pipes are bent and shaped to fit the specific make and model of the car. Different types of metals are used depending on factors such as durability and cost. The finished exhaust system is then tested to ensure it meets safety and performance standards.

Throughout the episode, we get fascinating insights into the technology and expertise involved in each of these processes. From the precision of the fiberglass insulation machine to the artistry of the wooden duck carver, we see firsthand the incredible skill and attention to detail required to create these everyday products that we often take for granted. How It's Made season 3 episode 21 is a celebration of the ingenuity and hard work that goes into making the things we use every day.