Use the formula triangle to establish the correct calculation by covering up what needs to be worked out. To work out speed, cover the S. To work out distance, cover the D. To work out time ...

Max and Phildog hit the shooting range this weekend to see if they could accurately measure bullet speed using Audacity. Using Audacity to examine the wave form they can determine the time between ...

Fizeau's work with Foucault inspired him to attempt and calculate the speed of light, the value of which was neither known accurately, nor measured by means of a terrestrial experiment.