Ep 26. Manhole Covers and Snowmobiles

The episode "Manhole Covers and Snowmobiles" from season 4 of How It's Made is a fascinating exploration of two very different products that are both integral to modern living. The show starts off by delving into the world of manhole covers - ubiquitous items that most of us take for granted but play an essential role in ensuring our cities are safe and functional.

Viewers will get a behind-the-scenes look at the manufacturing process of manhole covers, starting with the casting of the iron or steel base. From there, the manhole cover is shaped and machined to perfection, with attention paid to details such as the logo and any drainage or water catchment features. The show explores how manhole covers come in a variety of sizes and shapes to fit different needs, and are tested rigorously to ensure they meet all necessary safety standards.

Next up, How It's Made turns its attention to snowmobiles, a mode of transportation that allows people to traverse snowy landscapes and enjoy all kinds of winter sports and activities. The episode takes viewers through the entire production process, from the initial design and prototyping stage to the final assembly and testing.

We get to see how different components such as the tracks, suspension system, and engine are made and assembled, and learn about the engineering challenges involved in ensuring a snowmobile is both functional and safe in extreme conditions. The show also explores the variety of different types of snowmobiles available, from high-performance racing machines to more utilitarian models designed for work or exploration.

Throughout the episode, How It's Made provides fascinating insights into the technologies and techniques used to make these two very different products. We get to see up close the machinery and tools used to shape and mold manhole covers, and learn about the complex processes involved in making sure they can withstand wear and tear over many years.

Meanwhile, with snowmobiles, viewers will get a sense of the engineering and design challenges involved in creating vehicles that can handle the demands of winter sports and outdoor exploration. From the powerful engines and specialized tracks to the subtle details of the handlebars and seating, every element of a snowmobile is designed with functionality and safety in mind.

Overall, "Manhole Covers and Snowmobiles" is a captivating episode of How It's Made that will appeal to anyone interested in the intersection of technology and everyday objects. From the intricate details of a manhole cover to the power and performance of a snowmobile, viewers will gain a new appreciation for the complex and fascinating technologies that underpin our modern world.