Eric Laithwaite, (1921-1997), late of Imperial College, London, was an expert on linear induction motors.
His research in later years into gyroscopes was, and still is, a topic of much discussion within the scientific community. Here, filmed in 1983, he demonstrates the principles of a gyro using a rather large and heavy wheel.
YouTube link.
You can read more about Professor Laithwaite and his scientific achievements here.
