3. My grandma may not look very strong, but with the help of hydraulic power, she can stop a
car with her foot. How does hydraulic power work? First, fluid is rapidly released
into a
chamber
through a valve. As the fluid collects, the valve is slammed shut. This causes a pressure spike,
but since the chamber is sealed, the pressure has nowhere to go. The hydraulic mechanism
channels the pressure and provides great power. And that's how, with the help of hydraulics, my
grandma can stop a speeding car with one foot.

Summarize this paragraph in one sentence. Be specific and clearly explain the main idea.
An appropriate title:
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