The ohm, amp and volt are now understood around the world. In this interview Sir Richard Glazebrook, a key figure in the international standardisation and determination of electrical quantities, discusses his research and committee work to define how electricity is measured today.

Sir Richard was the first Director of the National Physical Laboratory, the first Chair of the Advisory Committee on Aeronautics and the 2nd Wilbur and Orville Wright Memorial Lecturer.

Sir Richard Glazebrook talk was recorded in 1934 and the podcast was released courtesy of the IET Archive. The original film version of this recording can be viewed via the National Physical Laboratory YouTube channel. The podcast was edited by Mike Stanberry FRAeS and it was digitised thanks to a grant from the Royal Aeronautical Society Foundation.