Ep 5. Under Pressure

Under Pressure is the fifth episode of the seventeenth season of the television series Modern Marvels. The episode explores the science and engineering behind the concept of pressure and its applications in a variety of fields.

The episode begins by discussing the basic principles of pressure, including its definition as the force exerted per unit area. Viewers are shown how pressure is measured and why it is an important factor in many industries, including manufacturing, construction, and medicine.

The episode then delves into the practical applications of pressure in these industries and others. One segment focuses on the use of hydraulic systems to lift and move heavy objects, such as those used in construction and mining. Viewers are shown how hydraulic pumps and motors work together to create powerful machines that can exert tremendous force.

Another segment explores the science of pressure cooking and how it has revolutionized the food industry. Viewers are introduced to the concept of "superheated steam" and shown how it can cook food quickly and efficiently without sacrificing flavor or texture. The episode also discusses the safety measures necessary when working with high-pressure systems.

The medical field is also highlighted in Under Pressure, with a segment on the use of hyperbaric chambers to treat a variety of medical conditions. Viewers are shown how these chambers work by exposing patients to high-pressure oxygen, which can help speed up the healing process for wounds and injuries.

The episode also covers the role of pressure in aerospace and aviation, including the design and testing of aircraft and the use of pressure suits for pilots. Viewers are shown how engineers and scientists use wind tunnels to test the aerodynamics of aircraft and how pressure suits protect pilots during high-altitude flights.

Finally, the episode explores the concept of "negative pressure" and its applications in the fight against infectious diseases. Viewers learn how negative pressure rooms create a controlled environment that can help prevent the spread of airborne diseases in hospitals and other healthcare settings.

Overall, Under Pressure is an informative and engaging exploration of the science and engineering behind pressure and its wide-ranging applications in industry, medicine, and beyond.