24682
Verifiers

Verifier NRB / BBAN

Calculator allows you to verify the correctness of the entered account number.                

Long description

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80717
Verifiers

Verification ISBN preview

Jak sprawdzić numer ISBN?
Jak zweryfikować numer ISBN?
Calculator allows you to verify the ISBN number entered.
66917
Verifiers

Verification of the social security number in Poland

It presents data deriving from the unique social security number, such as date of birth, sex, serial number and check its correctness.
57144
Verifiers

Verifier numbers EAN-13 preview

 Verifier numbers EAN-13 Calculator allows you to verify the number entered EAN-13.          
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Life

Map Scale Converter

Calculator allows to determine the actual distance corresponding to the distance on the map with the specified scale. If the map at 1:500,000 scale the input field, enter the value 500000.  
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Chemical

The frequency of the relaxation based on the Arrhenius equation

Calculator based on the given temperature, the frequency of vibration and thermal activation energy calculated częsość relaxation.                    
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Physical

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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Life

Battery life

Calculator based on the specified battery capacity and consumption estimates the time. Calculator does not take into account changes in CPU speed and action in the case of ACPI computers.            
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Health

BMR Calculator - Basic Metabolic - PPM

Jak obliczyć wskaźnik BMR / PPM ?
The calculator calculates the BMR (Basal Metabolic Rate). BMR - the lowest rate of metabolism that occur in the human body, necessary to sustain basic life functions, which is located in standby mode under complete peace of physical and mental comfort that the 12 hours before the test, do not eat any meals, after 3 days of diet and protein-free after at least eight hours of sleep.