Ep 4. Cartridge Blades, Chocolate Banana Loaves, Vending Machines, and Dive Computers

In season 21, episode 4 of How It's Made, viewers are taken behind the scenes of the production of four vastly different products: cartridge blades, chocolate banana loaves, vending machines, and dive computers.

The episode begins with a look at cartridge blades, which are small, disposable blades commonly used in the printing and packaging industries. Viewers learn about the intricate design process that goes into creating these blades, including the use of specialized software and state-of-the-art machinery. The episode also delves into the materials used to make cartridge blades, such as tungsten carbide and ceramic, and the various techniques used to shape and sharpen them.

Next, the episode moves on to a sweet treat: chocolate banana loaves. Viewers are taken to a bakery where they get a firsthand look at the baking process behind these delicious loaves. From mixing the ingredients to baking and slicing the finished product, viewers will see every aspect of the process that goes into creating these tasty treats. Along the way, they'll also learn about the different types of chocolate and bananas used in the recipe, as well as the various tools and techniques used to create the perfect loaf.

The episode then takes a turn towards the industrious with a segment on vending machines. Viewers will learn about the complex inner workings of these machines, including the numerous sensors and mechanisms that allow them to accept and dispense cash, recognize products, and deliver change. They'll also see the various types of vending machines available, from those that dispense snacks and drinks to ones that can be used to rent movies or even purchase gold bars.

Finally, the episode wraps up with a look at dive computers, which are essential tools for scuba divers. Viewers will learn about the different types of dive computers available, as well as the specialized sensors and algorithms that allow them to measure depth, pressure, and other critical data. They'll also get a glimpse into the rigorous testing process used to ensure that these devices are safe and reliable, as well as the design and engineering process that goes into creating them.

Overall, season 21, episode 4 of How It's Made offers a fascinating look into the diverse world of manufacturing, from the creation of industrial tools and machines to the baking of delicious treats. With an emphasis on the intricate design and engineering that goes into producing these products, this episode is sure to leave viewers with a greater appreciation of the incredible innovation and skill involved in modern manufacturing.