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Friis transmission equation

The calculator calculates the power at which the antenna receives the signal output from the second antenna of the power and distance greater than a single wavelength. The higher the frequency, the higher the transmission power loss from the signal transmission.        

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Calculator resistance resistor ( bars)

Calculator gives the resistance of the resistor based on the introduced color bars.
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Parallel connection of resistors

The calculator calculates the equivalent resistance of two resistors connected in parallel.            
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Associated force of the hydraulic piston and the cylinder

Hydraulic cylinder is a mechanical akutatorem used for power transmission line by a linear thrust. Through the movement of the piston up and down over the forces and pressure. This calculator is used to calculate the two forces given angle for each operation.      
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Verification of the ISSN

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The distance calculator between cities Polish

Calculator helps you calculate the distance in a straight line between two selected major Polish cities.      
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Consumption Calculator paint Flügger

Calculator based on the data entered the room indicates the approximate amount of paint needed to make Flügger his painting.              
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Wedding calculator

Calculator helps calculate similar costs associated with the wedding