Colin Grimshaw, Author at Imperial College Video Archive Blog

Royal Albert Hall and Commemoration Day

24 October 2012

Once again we are in October and it’s time for the Graduates to visit the Royal Albert Hall for Imperial College’s Commemoration Day.

This brief entry is to remind you of the post I made two years ago this month. That post contains all that we have in terms of archive audio/visual material relating to the ceremony. Most importantly, of course, we do have the sound recording of King George 6th from 1945. And to just repeat myself: The October Commemoration Day graduation ceremonies recall the visit made to the College by King George 6th and Queen Elizabeth in 1945, on the centenary of the foundation of the Royal College of Chemistry, Imperial College’s oldest forerunner.

You will also read in that previous entry about the difficulties associated with the transfer of these original sounds recordings from 78rpm discs and ‘paper’ magnetic tape. Both are now saved into digital form.

Go direct to my October 2010 blog entry.

Colin Grimshaw October 2012

Mathematics Videos with the LMS

Colin Grimshaw

21 October 2012

In the entry “Promotion: 2 – Mathematics” I made reference to the videos that I had made in conjunction with the London Mathematical Society (LMS). These came about for two reasons. Firstly we had made the departmental promotional video, as seen in that previous blog. This was not a huge success and we needed an alternative way to promote the department. The second reason was that a member of the Maths Department was connected with the LMS, who ran their Popular Lectures at Imperial College each year. He asked if I could record these lectures when they were taking place. As most people who know me will know, I am never very keen on the ‘live’ recording of lectures or presentations. This is because I would have no control over them and couldn’t start or stop the event to get the best version for the recording. After all, if you are going to watch a video of a lecture, you want to see it at its best AND be presented to YOU, not a group of people you can’t see or interact with. If you have ever watched the Royal Institution Christmas Lectures then you may appreciate the great control the TV broadcasters have over its content and tight scripting. Any mistakes or problems are taken care of at the time of the lecture and if needs be everything is stopped.

So, I suggested a few things. One, was that the videos should be recorded to help promote Maths in general and the Maths Department at Imperial at the same time. Two, was that the videos should be recorded in the studio, FOR television and direct to camera. So in July 1986 we recorded the first LMS Popular Lecture called “Games Animals Play”. We recorded two lectures, one after the other to coincide with the LMS lecturers being at Imperial for that evenings event. We usually recorded one in the morning and one in the early afternoon. We went on to record 18 in total, ending in 1997 when the lectures ceased to be held at Imperial College.

As soon as I can, I will transfer all of the videos from the original tapes into digital form. In the meanwhile here is just one of those lectures from June 1996, Peter Hilton’s “New wine in old bottles”. Peter Hilton (7 April 1923 – 6 November 2010) was a British mathematician, noted for his contributions to homotopy theory and for code-breaking during the Second World War.

Colin Grimshaw 2012

Life Science Library 1979

Colin Grimshaw

18 October 2012

The first programme we made in colour was a guide to the Life Science Library. That was 33 years ago in August 1979 and colour was so new that we didn’t even have a colour logo caption at the start, in fact it’s our original black and white logo. Interestingly, the video is a great snapshot of what libraries looked like and how they operated at that time. Card indexes were still the norm with microfiche readers being a new addition. There is also mention of having a literature ‘computer search’ carried out at a cost of around £5, a cost which was probably considered high at that time and would have been carried out by a librarian for you. One of the great advantages of us moving into colour was the fact that we were able to edit. Until then it was possible, but difficult, and also in black and white. The video required a lot of different shots, like close-ups of index cards, so editing was an essential part of the production, in fact, without decent editing facilities this programme could not have been made.

Lots of lighting was needed for the camera

Because we were going to cause some disruption in the library, where possible, we shot in the evening, or at least after 5pm. As you can see from the photo on the left, we also needed light..lots of it too. Our early colour camera was happy with external situations, but inside it required rather a lot of light to get good images. The library, at that time, was rather lower in light levels compared to today and there was no way we could cope without adding some extra lighting. Our biggest problem was finding mains sockets anywhere near the rows of book shelves. You tend not to need mains sockets when looking for books! Like most of our videos, we sometimes needed (and still do need) ‘rent a crowd’, so see if you can spot me appearing twice in the video. Also note a major change to the feel of the South Ken campus from when this was shot in 1979. See how empty it is soon after 6pm when the external footage was shot.

The video style is a bit 1970’s, mainly because that’s when it was made. I can’t recall under what circumstances the video was due to be seen, but I think it was designed to be viewed in the room that had been designated for watching videos. This was one of the small rooms called a Carrel around the edge of the library in which a monitor and video recorder had been installed. You’ll hear reference to these Carrels in the video. Listen out too for the mention of photocopies, there were only two in the whole library at that time.

The presenter of the video was Mark Caldwell, a former STOIC chairman from the mid 1970’s. Mark is now living in Germany where he used to work for the world radio division of Deutsche Welle. From time to time I can could hear him presenting items live over the air and I thought how far we had come since his time with STOIC at Imperial, only a few years before.

I’ve also noticed that, as this was the first video we made in colour, we still used the original TV Studio caption. This was the caption used up until this point, I hadn’t come up with a colour version at this time!

Colin Grimshaw October 2012

October 2012 -The Blog returns

Colin Grimshaw

4 October 2012

Blog update

I’m very pleased to be able to say that the Video Archive Blog has returned. I took early retirement in January of 2011 but have recently been asked to restart and update my entries. So, we can look forward to more videos that are currently held in the video collection. I’ll also be trying to sort out and access the 15 year archive collection from STOIC the Student TV of Imperial College. That collection dates from about 1970 to 1985, or there abouts.

Working from home (and sometimes from Imperial) I can now devote as much time as I wish to this Blog. There are so many videos just waiting to be seen again. In fact I already have a few Blog entries awaiting the click of a button to make them live. The most time-consuming thing is the transfer of videotape into a digital format. What I’m currently doing is to make a DVD in maximum resolution of the video, before creating an on-line video held on the server. The DVD is stored along with the original videotape to make access easier. But the problem is that a 30 minute video takes 30 minutes to copy into a new format. That can take a lot of time!

Anyway, keep looking to see what’s changed or been added and let me know if you have any special requests or material that would be of interest to Imperial College.

Colin Grimshaw October 2012

30 years ago this week…

Colin Grimshaw

14 December 2010

This is an additional and brief entry to mark the recording of a video I made 30 years ago this very week. The video was “The Office of the Professional” made with, and for, Professor Bob Spence from Electrical Engineering. You’ll find this video and others in the section about Bob’s work, but I thought it worth repeating. I saw Bob recently and we both recalled the making of the video and how complicated it was. For example, the various TV screens seen running were in fact fed from different video players, so making these all run in sync was not easy. In fact, along with the recorder that was actually recording the video from the camera, we had 3 machines all needing to be run at the same time. This was early days for us and our colour camera (yes camera, as we had only one) which needed a lot of light to give good pictures.

The video was shot during this week in December 1980 and edited, after the Christmas holiday, in January 1981. Bill Buxton in his 2007 book Sketching User Experiences is quoted as saying, in reference to the video that this “is the first example of an envisionment video that I am aware of” and that it was “remarkable for its insights”. As I have already detailed in the previous full entry about Bob, the office desk that was constructed was faced in cardboard and green felt. One oversight was perhaps the telephones, we never attempted to change these to anything futuristic, so they look a bit odd now. The video also captures parts of the college long since changed and Alumni may remember: the main entrance, the steps and the original walkway going towards Electrical Engineering. These shots were taken on a dark and wet December afternoon back in 1980.

Professor Robert Spence, passed away on Friday 20th September 2024, at the age of 91.

Colin Grimshaw December 2010

Promotion: 2 – Mathematics

Colin Grimshaw

8 December 2010

This is the first year of the Video Archive Blog (it started in December 2009), so, as we’re nearly in 2011 I thought we’d reach back 30 years to see what was going on at that time. In 1980 non-broadcast video was still considered a new and exciting thing and we’d just moved into colour operation too. Maybe it was the whole idea of creating your own colour TV programme (which you could do if you had the right equipment) that encouraged people? So, in 1981 I was asked by the Department of Mathematics to think of ways to promote the department. It was decided an approach should be taken to discuss Mathematics in general rather than the department alone.

Lynda White, then Admissions Tutor in Maths, lead the decisions over who should appear and what they might say. She also appears at the start of the video standing outside the maths department on Queens Gate – as can be seen in this promotional photo taken at the time. Also, you’ll hear her asking some of the questions to her academic colleagues during the video. I was interested to see that we referred to everyone, except Lynda White, as just Dr or Professor and never used their first names on the captions. These days it now seems strangely formal. The only time that students are actually seen is during the opening sequence and I also spot some shots taken from the 1979 promotional video for the Lyon Playfair Library (that will be a separate blog entry where you can see the whole video). Worth noting too is that in those early days the video camera was separate from the recorder, which can be seen on the pavement. Camcorders came much later on.

Here then is the video we made. Looking more than a little dated now after 30 years and I think I’d be asleep by now if I had to sit and watch it all the way through! I can’t believe we actually had a list of courses and options being read out as part of the video. We seemed to spend a lot of time not really talking about Imperial. We did have discussions again along similar lines of promo videos but decided that a different approach should be adopted. We did this by creating a series of some 20 videos in conjunction with the maths department and the London Mathematical Society (more on these coming soon, along with all the videos we made -some 18 of them-going online).

Colin Grimshaw 2010 (updated October 2012)

New College Phone System: 1984

Colin Grimshaw

19 November 2010

In the summer of 1984 I was asked by Peter Burridge the Telecoms Manager, to make a special video to alert all members of Imperial College to the fact that we were about to put into service a new electronic telephone exchange. Until this time we had two systems running side by side: an internal automatic exchange and an external (BT) manually operated switchboard.

1950's Automatic Telephone Exchange — 1950’s Automatic Telephone Exchange

The original internal exchange, installed sometime around 1959, was located in the basement of the Royal School of Mines, whilst the external switchboard was installed in the Sherfield Building around 1969. This was probably to coincide with the opening of the building that year. For those only familiar with how things operate these days, the old system now seems very ancient. It required two telephones on a desk, internal and external. You called via the internal exchange with very old dial phones (in some cases), whilst to make an external call you picked up the receiver of the other phone and waited for the operator to answer.

You then had to request an ‘outside line’ and from there you could dial your call. All incoming calls to Imperial were answered by the operator and then put through to the extension in question. There were no connections between the two systems! So if a location only had an internal phone there was no way to contact them from outside of the college. The internal exchange catered for some 2,500 extensions whilst the external catered for 1,500 extensions.

statesman handset — The ‘new’ Statesman telephone 1984

The new system was deemed so “new” that training sessions were put into place at various locations around college. These were designed for either staff or students and some even took place in the Great Hall. It may seem odd, but at that time most secretaries, for example, were using normal electric golf-ball typewriters and few people had contact with computers unless they were academic. So, having to press button combination’s to achieve things like two way calling or call transfer had some people a bit stumped, thus the training sessions were arranged. As this concerned all of college there was great publicity and this can be seen from this mid-summer edition of the student newspaper Felix from 17 August 1984 (pages 4 & 5).

The colour stills of both the 1950’s exchange and switchboard are taken from the videotape I shot. So far, I’ve not located any other images of, what was, a major part of the daily unseen operation of Imperial College. I suspect that these sequences in the video may have been the first time that some people had seen any of these background services operating. I was also one of the first to experience the new system.

A few weeks before operation began I was asked if I’d wait by my current internal phone at around 6pm one evening whilst it was manually switched from the old to the new system. I then received a call via the new exchange to test all functionality and quality of sound. The rest is now part of college history as we all take the new systems as part of normal daily college life. But is was just a little bit different when you picked up the external phone and knew the person on the switchboard and had a short conversation before saying…”can I have an outside line please?”.

Colin Grimshaw November 2010

Commemoration Day

Colin Grimshaw

18 October 2010

As we celebrate yet another Commemoration Day at the Royal Albert Hall I thought the time was right to bring you the few recordings we have from earlier years. At the end, I’ll mention technical challenges involved with the transfer of the first two recordings onto modern formats.

Although you’ll find this first recording elsewhere I’ll include it again for completeness.
The October Commemoration Day graduation ceremonies recall the visit made to the College by King George 6th and Queen Elizabeth in 1945, on the centenary of the foundation of the Royal College of Chemistry, Imperial College’s oldest forerunner. King George said: “You students here assembled – men and women who soon will be going out from the Imperial College to your work in the world – have not only an opportunity but also a responsibility greater than men of science have known before. To you, I say: Regard your knowledge and your skill always in the light of a trust for the benefit of humanity, and thereby ensure, so far as in you lies, that science may never be put to uses which offend the higher conscience of mankind.”
For those unfamiliar with King George 6th, he battled throughout his life with a nervous stammer and his attempts to overcome this during the speech are obvious with long pauses between sentences.

From 1945 we jump to 1952 and a recording that, so far, I have no idea exactly why it was made. It features Karl Compton who was a prominent American physicist and president of the Massachusetts Institute of Technology (MIT) from 1930 to 1948. In 1948 he resigned his post as President of MIT and was elected president of the MIT Corporation. He held that position until his death on June 22, 1954, some two years after this sound recording was made. Compton was awarded a fellowship in 1949 but was unable to attend, but in 1952 he was special visitor and collected it then. Interesting references are made to key players in college life at that time: Chairman, Viscount Falmouth; Rector, Sir Roderic Hill along with Sir Henry Tizard, Sir Richard Southwell and Sir George Thomson. There is only part of the introduction by Viscount Falmouth to Karl Compton on the original tape, so it will sound a bit truncated. At the end, Compton reads greetings to the Imperial community from the President and also the Chairman of MIT and the American national anthem is played. Could this be why it was recorded?

Finally, we have something visual in the form of a 16mm colour film shot in 1973. Robert W Sarnoff was President of RCA (Radio Corporation of America). He was the eldest son of broadcasting mogul Brig. Gen. David Sarnoff, he followed in his father’s professional footsteps throughout his career at NBC and RCA. The citation for Sarnoff indicates that he was the benefactor of the Imperial College Haldane Music Library. A year later in 1974 Sarnoff married Metropolitan Opera diva Anna Moffo, so maybe opera was his interest as well as being the music library benefactor? As I understand it, Sarnoff himself paid for large parts of the 1973 Commemoration Day ceremony to be filmed in colour and with sound. Lord Flowers was Rector at the time and is seen in this current extract. This is the earliest moving picture record the college has of one of its ceremonies and it’s thanks to Robert Sarnoff that this happened. One of the greatest achievements by RCA and Sarnoff in particular was the development and introduction of colour TV in the USA. He was the first person to be officially televised in colour at the dedication ceremony of NBC’s new Washington, D.C. facilities on May 22, 1958. For those interested, you can see an amazing videotape that has been rediscovered of this 1958 event. The program represents the earliest known colour recording discovered to date.

The first two sound recordings could have been lost for ever had we not transferred them onto modern formats. The 1945 recording of King George 6th is held on 78rpm shellac discs which are very delicate and will break if dropped. I had these transferred by the National Sound Archive a few years ago. Although, in theory it’s easy to copy these discs, using the correct pick-up weight and stylus is essential. Using a modern LP stylus will simply “bottom’ into the disc’s groove and produce more scratch and crackle then actual sound and can damage it too.
The second recording IS interesting. I discovered that the recording tape used paper as the backing, rather than a form of plastic and its manufacture probably dates from the 1940’s. The oxide was also very basic and looked more like gunpowder than anything you could record sound on! Transferring the tape was also a challenge as I had to run the tape very slowly because it was sticking to itself like a reel of sticky parcel tape. A lot of background noise will he heard and I’m still amazed I managed to get anything off of it anyway.

I hope you have enjoyed listening to our recordings of Commemoration Days from the past….unless YOU have something we don’t know about?

Colin Grimshaw – October 2010

Events: St Mary’s Merger Ceremony 1988

Colin Grimshaw

21 September 2010

On the 19th October 1988 the beginning of the mergers with the medical schools started. This was the merger between Imperial College of Science and Technology and St Mary’s Hospital Medical School, located just north of Kensington Gardens and Hyde Park at Paddington. The end result of the mergers was the formation of the Faculty of Medicine.

St Mary's campus — St Mary’s main entrance arch

To my knowledge this is only the second time that the college’s Great Hall has played host to a royal event. The first of these was the opening of the building (then called College Block and subsequently Sherfield Building) and the hall itself by HM the Queen in 1969. The hall was packed as you would imagine and that didn’t leave all that much room for the two cameras and tripods we had proposed for the live recording. We were also limited in terms of man-power so my colleague Chris Roberts operated the main camera whilst I located the second camera next to where I had the vision mixer and recorders. This meant that I could not only cut between the cameras, but also operate the second camera to change the shots slightly. What I could not cope with was the fact than when people stood up, they almost blocked the shots from the camera next to me.

The ceremony starts with the fanfare “St Mary’s”. There are then several musical interludes during which you’ll see a very young Richard Dickins and these 22 years later I must apologise to Richard because we got the spelling of his name wrong on our end credits. But, it’s a wonderful record of music from the college symphony orchestra playing Walton’s ‘Crown Imperial’. Also the late Eric Brown conducts the college choir with music from Carmina Burana. And finally in terms of music you’ll hear the electronic organ that’s located within the hall. Princess Anne, (The Princess Royal) as Chancellor of the University of London presented the Chairman of the Governing Body (Sir Henry Fisher) with a specially bound copy of the Imperial College Act and its revised Charter. The Imperial College Rector at the time was Professor (later Sir) Eric Ash.

As always, I’ve had to tweak the image on the video to make it look at bit better. Technology has advanced a lot since this was recorded and the lighting levels required to get good images is a lot lower these days. The Great Hall have never been fantastic for shooting video unless extra light is thrown at the stage area and that then leaves the audience rather dark, whilst the wood panels around the hall make a very warm image when light bounces off it. The whole video is around 45 minutes in duration.

Colin Grimshaw September 2010

Creating this blog is a sticky business!

Colin Grimshaw

2 September 2010

Since the start of this archive blog people have asked me various things about the videotape collection. Questions range from: when did the collection start; how many tapes are there; and what formats of tape do you have. So, I thought that just for once I’d write an entry without an actual video in it. Some questions I’ve been asked are answered in the “about this video archive blog’, but I’ll go through them again anyway.

Some of the 700+ tapes in the video archive

The earliest videotape (one inch ‘A’ format) dates from about June 1970 and is on our original videotape format made by the American company Ampex. This company invented the world’s first commercial videotape format back in the mid 1950’s (2 inch Quadruplex). So, our oldest tape was made only 15 years after the invention of videorecording itself. Sadly, playing these tapes back is slowly becoming a problem. Equipment is no longer accessible on campus to run some of the formats we have, but it is possible to use commercial facilities (at a cost). Recently, the earliest collection from the student TV service (STOIC) came under our access.

The Ampex one inch open spool 'A' format tape — Ampex ‘A’ format tapes have gone sticky

I’d forgotten just how many of the original one inch videotapes they still had. There are gems yet to be seen, dating from the early 1970’s through to about 1980, in fact their collection now has more one inch tapes than we do (many of ours are long gone). Anything of importance was transferred to another (the latest at the time) videotape format, but some items (mainly STOIC’s) remain, frozen in time, awaiting that day of playback once more when finances allows us to transfer them into a new digital format.

Playing these early tapes back has recently become a problem anyway. There is an effect called Sticky Shed Syndrome which means that the binder, which sticks the oxide onto the plastic tape, is breaking down. What appears to be happening is that the binder is taking in moisture and going sticky. It’s SO sticky in fact that when tapes are run, the oxide and binder come off the plastic tape and stick to all parts of the videorecorder that the tapes run past. After only a few moments of playback there will be a very loud screeching noise followed by the video head clogging and the machine grinding to a halt. If you put your finger onto the guides inside the machine it will be sticky and covered in tape oxide and a sticky goo.

Oxide is badly shedding from magnetic tapes — Oxide is shedding from magnetic tapes

In the recent blog entry called “seen and gone” I found some old audio recordings of the soundtracks of erased videotapes. These audio tapes also suffered the same problem of shedding oxide. When I started to play them the oxide came off the plastic, as you can seen in the photo. My fingers can be seen through the plastic tape. The one good thing was that whilst running the tapes through the recorder I was also copying it onto computer to then go onto disc.

The U-matic videotape format suffers too

These playback problems have happened because some tape manufacturers got various chemical mixing formulas wrong. It was only in the mid 90’s or so that the problem was fully appreciated. There is only one way around the problems of playback. The tapes, audio and video, have to be baked. That is, the tapes have to be heat treated at something like ±50 oC for a few hours or more. This draws the moisture out, allowing immediate playback to get the material onto another modern format. The temperature used is critical, too high and the ‘Curie point’ can be reached and the tapes automatically erased, or at least the magnetic properties will be lost and thus the recording data will be gone for ever. So there are problems and dangers anyway with this method of recovery!

The various tape formats we have to work with sitting on the edit suite desk

We are therefore faced with a slight problem of playback, even with tapes still in use today like the U-matic system. Most of the tapes seen on the shelves in the top photo are of this format and many are causing playback problems. I’ll be experimenting with heat treatment soon to sample a few tapes for transfer. In most cases I’ll put these onto DVD, assuming they’ll play back okay after treatment. Today, we have many tapes formats as can be seen in this last photo. We’ve gone through: One inch open spool both low and high band; U-matic low and high band; Betacam and now DVCam. Also we’ve encountered half inch open spool, Philips cassette, VHS and so on. With some 700 tapes now being held in the collection, the question is how long will we be able to play back any of the many formats of videotapes that we have?

Colin Grimshaw September 2010