Before servicing any refrigeration or air conditioning systems that contain an oil pump, technicians should make sure they understand the difference between net oil pressure and oil pump discharge ...

Missing physics lab? Here are three experiments you can do at home, with a free app and some everyday stuff.

If you measure external air pressure with your barometer, the reverse will happen: the skewer will point upwards with rising atmospheric pressure as the air outside the jar pushes onto the balloon.

An important method used to characterize porous materials is measuring gas and vapor sorption. The uptake capacity is yielded directly by isotherms, which can be used to measure the suitability of ...