👉 In the context of physics, a pycnometer is an instrument used in measuring pressure. It consists of a spring-loaded cylinder that can be compressed or released by pressing on its handle. The handle is attached to a pivot, which allows it to move relative to a fixed point. When the handle is released, the piston inside the cylinder moves up and down, creating a force that causes the handle to oscillate back and forth. This oscillation can be used as an indicator of pressure (e
