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Here we list some material related to measurement or physics. Maybe you find it interesting or just cant remember what you learned long ago or maybe you are in need of this information right now. We will add over time and hope it helps somewhere.

There is no logical order and downloads in .pdf format.

Basic movement : giving the 4 basic methods with examples to make it easy. 

Vapour Pressure:  What is Vapour pressure and how to calculate the pressure of Vapour.

Virtual Temperature: Formulas and example to calculate Virtual Temperature as well as Speed of Sound.

Air Density: We share the relevant formulas while building on Vapour Pressure and Virtual temperature. We calculate the air density and compare results with ASM standard.

Drag, Drag Force and Coefficient: In this edition we calculate the drag, drag force and drag coefficient in a simple practical way with an example.