A vacuum pump is a device that removes gas molecules from a sealed volume in order to create a vacuum — a space with significantly lower pressure than the surrounding atmosphere. These pumps are essential in a variety of applications across different industries, including scientific research, manufacturing, and medical technology. ### Types of Vacuum Pumps 1. **Positive Displacement Pumps**: These work by trapping a volume of gas and then reducing it either by mechanical means or through an expanding gas volume.
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