In previous posts I have mentioned the Royal Institution Christmas Lectures given by Professor Eric Laithwaite in December 1974.
I was involved with one of those lectures ‘Jam Tomorrow and Jam Yesterday’ which was lecture 3 in the series. During the late summer of that year Eric Laithwaite had approached me to discuss various ideas to do with things going backwards. He particularly wanted to play around with the idea of speaking backwards. These days you can very easily do such things on your computer let alone on a phone. I managed to find within our Electrical Engineering Department an audio/instrumentation recorder that was able to run backwards.
I asked Eric Laithwaite to call into the TV Studio so that I could demonstrate this to him. I recall us both playing around with speaking, or trying to speak, ‘backwards’ and then playing the actual tape backwards to see if it came out ‘forwards’. At one point he almost slid of the chair in hysterics at what sounds were coming out of the loudspeaker, some of which sounded very rude! He was sold on these ideas and I said that I would play around some more and make extra investigations. What I then decided to do was to create a tape with a sentence rather than just single words. It took ages to do and I had to cheat by editing a string of words together to create something special for the lecture. Over on the right is the original tape that was used in the lecture and now looking slightly aged.
When Eric Laithwaite heard my sentence he roared with laughter and said ‘right, I want YOU to present that in the lecture’. And so I was therefore seen presenting my achievement and also helping him during various sound recording experiments with members of the RI audience. I recall the first recording with the young boy who immediately turned his back on the cameras to face the tape recorder. The BBC floormanager then started to make furious gestures to me to get him to turn slightly so that the cameras could see him.
Five years later in his 1980 book, to go with the series, he gave me a most wonderful credit. “…Colin appeared ‘officially’ in the third lecture taking over part of the lecture in effect…”
And so, 43 years later, here I am speaking backwards at the Royal Institution.
Colin Grimshaw December 2017



38 years ago on 15 December 1977 Mark Hamill visited Imperial College to promote the forthcoming release of a new film. That film was Star Wars. We were lucky to get him to visit the TV Studio (then in Electrical Engineering Building) as part of the publicity rounds to promote the film. I suspect we’d never get a look-in these days, but back then no one had heard of the film and they needed every drop of publicity. Coming to the studio for the STOIC interview was closely timed because we’d been informed that he was next going to the BBC TV Centre for a live appearance on Blue Peter (the Children’s TV Show). The photo on the left was taken in the studio at the time of the recording. He was talking to James Sinclair who also happened to be the STOIC chairman at the time.
Sadly this interview is one of those programmes now frozen in time on the old Ampex A format one inch videotape which sadly we cannot now play without a machine and those are now rare. We were still a few years away from moving into colour so the Mark Hamill interview is in black and white. For copyright the film clips are removed.





