BrainStuff Season 4 Episode 12 How Do Pneumatic Tubes Work?

BrainStuff is a science show that brings to its audience an array of interesting topics that range from the human body to space and the universe. Season 4, episode 12 is titled 'How Do Pneumatic Tubes Work?' and delves into the fascinating world of pneumatic tubes.

As we move through an age of technological advancements and automation, the use of pneumatic tubes seems to have become a thing of the past, especially with the advent of email and digital messaging platforms. In this episode of BrainStuff, Jonathan Strickland - the host of the show - takes us through a journey that explores the origin, workings, and application of pneumatic tubes in different industries, including banking, healthcare, and retail.

The episode begins with an introduction to the concept of pneumatic tubes, and Jonathan goes on to explain what they are, how they work, and the different components that make up the system. A pneumatic tube system operates with the use of air pressure to move objects or documents quickly from one place to another. It comprises a network of tubes that connect different locations, and the tubes are made of metal or plastic and can range in size from less than an inch to over a foot in diameter.

The next part of the episode takes us back in history to help us understand the origins of pneumatic tubes. Jonathan shares how the first recorded use of pneumatic tubes dates back to the early 19th century in England and France. Back then, the tubes were used to transport telegraph messages, and they increased the speed of communication significantly. As time passed, their use expanded to other industries like banking and healthcare, and at one point, New York City had a massive 27-mile long pneumatic tube system that transported mail from one station to another.

Along the way, Jonathan explains the different mechanisms that make pneumatic tubes work. He provides insights on how the system relies on air pressure to function, and how the interchange of pressure between different tubes helps to move objects in the right direction. The system utilizes various types of fans, regulators, and valves to propel tubes back and forth, ensuring that objects are carried to their desired destination.

In the latter part of the episode, the focus shifts to the various areas where pneumatic tubes still find usage today. Hospitals, for instance, use pneumatic tubes to move samples between laboratories and processing centers, and banks use them to transport cash and checks to different departments. Retail stores use the technology to transfer sale receipts between the cash register and the back office. Despite these examples, the use of pneumatic tubes is slowly dwindling, and Jonathan provides insights on the reasons for this decline, including the increasing prevalence of digital communication and messaging platforms.

In conclusion, this episode of BrainStuff takes us on an engaging journey exploring pneumatic tubes - their history, how they work, and their relevance in modern times. It provides a fascinating insight into one of the oldest automation technologies and its applications in varied industries. By the end of the episode, viewers are left with an enhanced understanding of an essential component of our past and present.