John Harrison, an 18th century inventor whose marine chronometer greatly improved seagoing navigation and saved countless lives, is being honored today with our culture’s highest civilian honor.

John Harrison, whose Tone Tubby company in San Rafael supplies innovative hemp speakers to such rock stars as Carlos Santana, Eric Clapton and Metallica’s Kirk Hammett, died unexpectedly June 25 ...

Harrison invented the gridiron compensation, and applied it not only to pendulum-clocks but also to his first chronometers, to which Graham's mercury compensation was not suitable.