Sidney George Brown FRS[1] (6 July 1873 – 7 August 1948) was a British electrical engineer and inventor.
He is best remembered for his pioneering work on the design of gyro compasses, radio equipment and loudspeakers.
In 1879 his family returned to the UK and Brown began his education at a private school in Parkstone, Poole, followed by Harrogate College.
During World War I, S.G. Brown Ltd. set about developing British made gyro compasses.
Brown's design featured an innovation called liquid ballistic damping, to control the oscillation in the compass caused by a change of course.