How It's Made Season 6 Episode 4 javelins, cuckoo clocks, hearts of palm, and windshield wipers

How It's Made is a fascinating documentary TV series that explores the step-by-step manufacturing processes behind everyday objects. Season 6 episode 4 features four exciting products: javelins, cuckoo clocks, hearts of palm, and windshield wipers.

The episode begins with the creation of javelins, which have been used for centuries in various Olympic and track and field events. We learn that the shaft of the javelin is made of carbon fiber, while the head is made of steel. First, the carbon fiber shaft is cut to size and shape, and then a layer of resin is added to strengthen it. The steel head is forged, machined, and hardened before being attached to the shaft with a special glue. Finally, the javelins are polished and tested for weight and balance.

The next segment focuses on cuckoo clocks, which originated in Germany in the 18th century. We see how these intricate timepieces are made by skilled artisans using traditional woodworking tools. The wooden case is carved from a single block of wood, and then the clock mechanism is inserted. The cuckoo bird and bellows are meticulously crafted by hand, and the entire clock is tested for accuracy before it is painted and decorated.

The third segment is all about hearts of palm, a delicacy harvested from certain varieties of palm trees. We follow the process of harvesting, cleaning, and packaging the hearts of palm, which are high in fiber and low in calories. The palm trees are carefully selected and harvested by hand using a machete, and then the fibrous outer layers are removed to reveal the tender hearts. The hearts of palm are washed and sorted, and then either packaged for immediate sale or processed into other products, such as salads or dips.

Finally, we learn how windshield wipers are made, a crucial component of any vehicle's safety system. We see how the rubber blades are molded, cut, and shaped to fit specific windshield sizes. The metal frame is constructed and attached to the rubber blade, and then the entire assembly is tested for durability and effectiveness. We also learn about the different types of wipers available, such as beam and hybrid wipers, and how they provide superior wiping performance.

Overall, How It's Made season 6 episode 4 is a fascinating glimpse into the manufacturing processes behind four diverse and interesting products. Viewers will be captivated by the attention to detail and precision required to create these objects, and will gain a new appreciation for the countless items we use and consume every day.