and plant life—in a sealed chamber. For example, a cylinder with an airtight lid can be inserted into soil, and scientists can then measure and analyze how the gas concentrations in the enclosed ...

The larger the cylinder bore, the greater the area of the combustion chamber, and the greater the area picking up heat from hot combustion gas. At one time, short strokes and big bores were the ...

The desired compression and sudden expansion was obtained by a piston which followed the pressure of gas in a cylinder below the cloud chamber. By this means, a sudden expansion in the cloud ...