Vacuum Control (1938)

The film explains how vacuum pressure plays a crucial role in various natural phenomena and technological applications. It describes how thunder is produced by the vacuum created by lightning, which causes air to rush in, and how atmospheric pressure variations lead to storm formation. The film illustrates the concept of vacuum through everyday examples like drinking through a straw and using suction cups. It highlights the advancements in vacuum technology, particularly in automotive engineering, where vacuum assists in gear shifting, making it easier and more efficient. Additionally, it discusses the use of vacuum in postal systems and other machinery to enhance efficiency and convenience.

Keywords
vacuum, thunder, atmospheric pressure, storms, suction, automotive engineering, gear shifting, technology, efficiency, postal systems

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