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When taking pictures with a camera, one usually zooms in or zooms out, depending on the situation, whether one is aiming for a narrow or wide field of view, respectively. The question is investigated whether zooming was, ...
Remarks on van der Waals's equation, the cohesion pressure of a gas, and the role of intermolecular forces
The cohesion pressure of a real gas is considered to be caused by the collision interaction of the gas molecules. The collision duration time of two molecules is taken not to be zero but being of finite value ? This time ...