The simplest way to measure high voltage is by spark length ... is in units of atmospheres and the spark length is in millimeters. Most hackers work at atmospheric pressure which is 1 atm ...

An introduction to metric measurements. Entry 3 - Measuring distance and speed Summary of the systems of measurement for distance and speed as used in the UK and elsewhere. Entry 3 - Imperial and ...

NARRATOR: The metric system is a way of measuring things. So with length, the metric measurements are millimetres, centimetres, metres and kilometres. A stamp, would be measured in millimetres.