Just recently was the 150th birthday of the German physicist, Heinrich Hertz. Hertz did important groundwork in the theory of electric waves, which later led to practical wireless telegraphy equipment from Guglielmo Marconi, with the first transatlantic radio messages sent in 1901.

Today we use Hertz's name every day thanks to its adoption as the measurement of frequency, the Hertz or Hz. Our computers now have their clock rates measured in MegaHertz (MHz), and VoIP we need to concern ourselves with sampling rates of 8 or 16 kHz (8000 or 16000 samples per second). CD music and other digital music formats are sampled at 44kHz, or 48kHz for DVD, so even those with no background in physics are familiar with the name.