Archive for the Biographical Category

Lá Saoire i mí Mheitheamh

Posted in Biographical, History, Irish Language, Maynooth on June 2, 2025 by telescoper

It’s a Bank Holiday Monday here in Ireland, which makes for a nice end-of-term break for some of us. Not all staff had exams early enough to finish in time like I did, however, and no doubt some had to spend the weekend marking exam scripts. I am fortunate to have been able to accomplish everything I intended over the weekend – nothing at all – and today I’ll be able to recover from that exertion.

The June Bank Holiday (Lá Saoire i mí Mheitheamh) in Ireland is the equivalent of last week’s late May Bank Holiday in the UK, in that both have their origin in the old festival of Whitsuntide (or Pentecost) which falls on the 7th Sunday after Easter. Because the date of Easter moves around in the calendar so does Whit Sunday, but it is always in late May or early June; this year it falls on Sunday 8th June.

As if in celebration, the honeysuckle in my garden has started to flower:

The day after Pentecost was traditionally a holiday known as Pentecost Monday or Whit Monday. This enabled people to attend extra church services and organize local fairs and cultural events. Pentecost Monday became a public holiday in Ireland following the Bank Holidays Act 1871 which applied before Ireland became independent. Following the Holidays (Employees) Act 1973, this holiday was moved to the First Monday of June. This new date was first observed in 1974. This is why
we have the first Monday in June off work instead of the last Monday in May.

Although I’m only at beginners’ level in Irish, the phrase Lá Saoire i mí Mheitheamh gives me a chance to bore you about it. It’s actually quite a straightforward phrase until you reach the last word. “Lá” means “day” and “Saoire” means “leave” or “vacation” so “Lá Saoire” means “holiday”; “i” is a prepositional pronoun meaning “in” and “mí” means “month”. So far so good.

The word for June, however, is Meitheamh (at least when it is in the nominative singular case). Irish is an inflected language, which means that words change form according to their grammatical function. As an Indo-European language, Irish is distantly related to Latin which has six grammatical cases for nouns (actually seven if you count the rarely used locative case). Irish has only four cases – there’s no ablative and, curiously, no distinction between nominative and accusative. That leaves nominative, dative, genitive, and vocative. The dative – used after simple prepositions – is only rarely distinct from the nominative so basically the ones you have to learn are the genitive and the vocative.

In Latin cases are indicated by changes to the end of a word, but in Irish they involve initial mutations. In the example of “mí Mheitheamh” meaning “month of June”, requiring the genitive form of “June”, the initial consonant “M” undergoes lenition (softening) to sound more like a “v”. In old Irish texts this would be indicated by a dot over the M but in modern orthography it is indicated by writing an “h” after the consonant. This is called a séimhiú (pronounced “shay-voo” ). Note the softened m in the middle of that word too but it’s not a mutation – it’s just part of the regular spelling of the word, as is the -mh at the end of Meitheamh. There’s also a softened “t” in the middle of Meitheamh which makes it vrtually disappear in pronunciation. Meitheamh is thus pronounced something like “Meh-hiv” whereas “Mheitheamh” is something like “Veh-hiv”.

Gheobhaidh mé mo chóta…

Season Finale at the National Concert Hall

Posted in Biographical, Music with tags , , , , on May 31, 2025 by telescoper

It was very nice to be able to put the marking of examinations behind me and travel into Dublin last night for the final concert of the season at the National Concert Hall in Dublin. It seems the former NSO is now to be called the NSOI, the National Symphony Orchestra Ireland, no doubt for some sort of corporate branding reason. Anyway, last night they were under the direction of guest conductor Anja Bihlmaier for a performance of the Symphony No. 9 by Gustav Mahler.

Looking back through my previous posts about Mahler I see that I haven’t previously written anything about his 9th Symphony. I am pretty sure that last night was the first time I’ve heard it live, although I have it on CD. Mahler wrote it between 1908 and 1909, immediately after finishing Das Lied von der Erde which is a symphony in all but name and which should really be his 9th. He was a very superstitious man, however, and he was worried about the Curse of the 9th, so it wasn’t given a number. After the acual 9th Symphony he went on to compose another, his 10th (though really the 11th), though he didn’t quite finish it before his death in 1911. I hope this clarifies the situation.

The 9th Symphony is a substantial piece last about 80 minutes in performance. That’s far from his longest, but it does justify it being performed on its own. The structure is unusual, with two very long slow movements either side of a pair of shorter movements, a scherzo and a rondo. The former is constructed from dance-like segments, and much of it is in 3/4 time; it reminded me a little of Ravel’s La Valse, which starts out like a standard waltz but disintegrates into a nightmarish parody of that form. The rondo described as “Rondo-Burleske” is very fragmented, grotesque and at times raucous, and also very modern-sounding. It has been described as “ferocious outburst of fiendish laughter at the futility of everything”. I think the final adagio movement is the best, and it brought out the best of the NSOI. The long sweeping passages played by only the strings, with the cellos and double-basses providing deep foundations to Mahler’s sumptuously textured harmonies. Absolutely gorgeous.

The Symphony ends very quietly indeed. Anja Bihlmaier kept her baton in hand for quite a long time before putting it down and letting the applause start. A little silence at the end of a piece of music is a very good thing: it allows the members of the audience a brief moment to reflect on what they have heard. It irks me when people starting clapping and shouting before the sound has even died away.

Anyway, when it was over, the applause was tumultuous. I’ve already mentioned the string sections, but ll the members of the NSOI contributed with outstanding contributions from the woodwinds and brass too.

There being only one item on the menu there was no wine break, but not having an interval meant that I had time to have a drink at the end before heading back to Pearse station to get the train back to Maynooth. In the old days the NCH used to treat the audience to a free prosecco after the season finale, but not any more. I had to buy my own.

Well, this season may be over, but the booklet for next season is already out. I had a look through it on the train home. I plan to resume my Friday-night concert-going at the NCH in September, but there will be more music before then.

A Dream of AI

Posted in Artificial Intelligence, Biographical with tags , , on May 30, 2025 by telescoper

I noticed this, apparently genuine, screengrab circulating on social media:

Can it be? Can 2025 be just a dream and we’re really still in 2024? Did Trump not really get elected? More importantly, am I still on sabbatical? If so, why do I have a desk full of projects to grade? And why am I not in Barcelona?

I checked it myself and found this:

Someone at Google obviously tried to fix something by hand and didn’t entirely succeed.

Do you still think that AI isn’t a bubble waiting to burst?

Congratulations, Dr Gallagher!

Posted in Biographical, Maynooth, The Universe and Stuff with tags , , , on May 26, 2025 by telescoper

This week is off to a good start! This morning my postgraduate research student Aoibhinn Gallagher passed a viva voce examination on her thesis Cosmological Structure Formation Using Wave Mechanics. There will be a few formalities to deal with, some minor corrections to make, various forms to fill in, and the result has to be approved by the examination board, and so on, but basically that’s a job well done. Congratulations, Dr Gallagher!

Left to Right: Dr John Regan (internal examiner), Aoibhinn Gallagher (PhD candidate), and Prof. Cora Uhlemann (external examiner).

P.S. You can get an idea of some of the content of Aoibhinn’s thesis here.

Getting there…

Posted in Biographical, Maynooth, The Universe and Stuff with tags , , on May 23, 2025 by telescoper

Despite having to take time out today to attend an Emergency Meeting of IFUT (about matters which may or may not be public soon), my marking duties are about halfway done and roughly on schedule. For one module, I have 60% of the assessment scores for 32 students and, for the other, about 40% of the assessment for 23 students. I make that about 51.6 of the total. The last piece of the puzzle won’t arrive on my desk until Wednesday morning, by which time I hope to have completed 100% of the 32, leaving just 60% of the 23, amounting to about 16.7% of the total, to be done in the second half of next week. I hope this clarifies the situation.

Meanwhile the weather has taken a turn for the worse, no doubt because of the imminent Bank Holiday weekend in the UK. Monday 26th is a holiday there. In Ireland, the next holiday is on Monday June 2nd, Lá Saoire i mí an Mheithimh See if you can pronounce that! Next Friday (30th May) is the day of the season finale of the National Symphony Orchestra at the National Concert Hall, which is Mahler’s 9th Symphony. I hope I’ll be finished marking in time for that so I can relax over the holiday weekend after what will have been a very hectic week and take some time off the following week to do a bit of travelling to attend to some personal matters.

Next week will start off, however, with the PhD viva of one of my students. I won’t be attending the actual examination, of course, but will be there for the subsequent formalities. It’s a distraction from grading, but a nice one.

Physics & Theoretical Physics Undergraduate Final Examinations from 1985

Posted in Biographical, Education with tags , , on May 22, 2025 by telescoper

It is May 22nd 2025, so it’s 40 years to the day since started my final examinations in Physics and Theoretical Physics in the Natural Sciences Tripos at Cambridge University. These examinations concluded what was called Part II, the third and last year of a course which started out with four subjects (Part IA), then three (Part IB) I did double-physics and mathematics for IB.

The first paper of Part II was actually Paper Zero, an essay paper which I have already posted here. The five other papers are below; all six (including Paper Zero) were of three hours’ duration. You will see that Paper 4 is a very big one, because it contains questions pertaining to many options but each student did only a few. Unlike most of the theoretical physics students in my year I offered a theoretical project in lieu of part of Paper V, which means I was spared another three-hour paper. My project, incidentally, was on the computer simulation of a laser. My “prepared essay” was also on lasers Kilohertz and picoseconds in laser physics.

Looking at the papers I find a few things are different from what we do nowadays.

One is that Paper I was a general paper, with questions about random bits of physics. Most university physics courses these days do not have such papers (although I know of at least one that does…).

Another is that the course was not really modular. Each paper covered several different topics: Paper 2 for example covers Solid State Physics, Statistical and Thermal Physics and Electromagnetism; Paper 3 is Quantum Physics, Nuclear Physics and Particle Physics. In most modern university courses each of these would have a separate examination.

Other than that, some of the content (e.g. electromagnetism) is close to what you would find nowadays but in some areas (particle physics, for example) the 1985 paper is extremely dated.

As for the level difficulty, I can’t really comment. Take a look a the papers and decide for yourself!

(There is supposed to be a PDF preview, but it seems not to work on many web browsers, so You may hev to download the paper to view it.)

Comments are welcome through the box below.

Operation Marking Garden

Posted in Biographical, Education, Maynooth with tags , , on May 21, 2025 by telescoper

Posts will be a little thin for the next ten days or so here as I am preoccupied with correcting examinations and other assessments. I am spending most of the time doing that at home to avoid interruptions. I’ve also taken the opportunity afforded by this fine spell to do some laundry which I can peg out to dry outdoors. I think this is called multi-tasking. Fortunately (barring yesterday’s thunderstorms), the weather has been nice enough to do the marking outside, in my little garden.

Yesterday evening’s thunderstorms

A few years ago I posted an item about red valerian which grows in profusion around here on verges and embankments. Red valerian (aka spur valerian, kiss-me-quick, fox’s brush, devil’s beard & Jupiter’s beard among other names) is not to be confused with True Valerian, which has white (or very pale pink flowers). I mentioned in that post It’s red valerian (aka spur valerian, kiss-me-quick, fox’s brush, devil’s beard & Jupiter’s beard among other names). I mentioned in that post that I’d like to have some in my garden. Well, it seems that the seeds I planted have grown, perhaps spurred on by the rain yesterday evening:

red valerian

It’s not exactly a profusion, but it’s a start.

UPDATE: 31/05/25 On my way into Dublin by train I saw Red Valerian and True Valerian together by the railway tracks.

Anyway, I spent this morning marking until I remembered a couple of things I had to do on campus. That’s only 20 minutes’ walk for me so I went there at lunchtime, getting a haircut on the way. I stayed for lunch in Pugin Hall and then came back to continue with my correcting duties.

When I took a break for tea I suddenly remembered (for some reason) that the debit card on my UK bank account was about to expire and I hadn’t updated the address since I sold my house in Cardiff. Strangely, I couldn’t update my details online but instead had to use the telephone banking service. One can change to another address in the UK using the online banking app, but can’t do that if you’re moving abroad. Although it took longer to do than I had anticipated it might, the person I spoke to was very helpful. Fortunately they hadn’t yet despatched a replacement card and/or PIN so all was well.

So there you are. Another exciting day in the life of an academic has passed.

R.I.P. Jayant Narlikar (1938-2025)

Posted in Biographical, R.I.P., The Universe and Stuff with tags , , , , , , on May 20, 2025 by telescoper
Professor Jayant Vishnu Narlikar (1938-2025)

I heard this morning of the death at the age of 86 of renowned Indian cosmologist Jayant Vishnu Narlikar. I understand he died peacefully in his sleep in Pune after a brief illness.

Scientifically, Jayant Narlikar is probably best known for his work with Fred Hoyle on a conformal gravity theory and as an advocate of the Steady State theory of cosmology. In India however his fame extended far beyond the world of research, as an educator and science popularist, as well as Founder-Director of the Inter-University Centre for Astronomy and Astrophysics (IUCAA) in Pune. Those who met him – as I was lucky enough to do – will also remember him as a kind and gracious man, and a self-effacing inspirer of young scientists. During my visit I gave a talk there, which Narlikar attended, and we had a very nice conversation afterwards from which I learnt a huge amount.

The Directorship at IUCAA came with a house which had a very nice lawn, on which I remember playing croquet with Donald Lynden-Bell and others, but that’s another story. Another random thing I remember is that I remember is that Narlikar’s username on the IUCAA email system was “jvn” and he was often referred to informally by that name.

Although he never really abandoned the Steady State cosmology, despite the weight of evidence in favour if the Big Bang, it is to Narlikar’s great credit that he didn’t try to impose his own scientific ideas on those working at IUCAA. In fact he assembled an excellent group of cosmologists and astrophysicists and encourage them to do whatever they liked.

I first visited IUCAA in 1994 to work with Varun Sahni. In those days Westerners mainly went to Pune to visit an ashram (usually the one run by the guru Rajneesh). I remember when I arrived on the train from Mumbai and tried to get a taxi to the IUCAA campus, the driver asked me “which ashram?” I had long hair and a beard at that time, so I looked a potential hippy. I said, “No ashram. Professor Narlikar”. He knew exactly where to take me; “Narlikar” was a household name in India, where the newspapers are awash with tributes today (e.g. here) and where his loss will be keenly felt.

Rest in peace Jayant Narlikar (1938-2025)

Botanical Garden

Posted in Biographical, Maynooth with tags , , , on May 13, 2025 by telescoper
How many kinds of sweet flowers grow
In an English Irish country suburban garden?
I'll tell you now of some that I know
And those that I miss you'll surely pardon..

These are all wild flowers, often considered to be weeds, but I like having them in my garden!

Marking Time

Posted in Biographical, Education, Maynooth with tags , , , on May 12, 2025 by telescoper

So here we are, then, with only a few days before examinations start (next Friday, 16th May). The examinations for my two modules take place on Monday 19th and Tuesday 27th May, and after that I’ll be busy with marking for a while.

 

Marking doesn’t just mean written examinations. I have been teaching a module on Computational Physics to 3rd Year students here in Maynooth, and 40% of the assessment for that is a mini-project (usually done in groups of two or three). Early on the term, I put up a list of  16  projects and asked them to pick first second and third choices so I could form groups in such a way that most students get to work on a project they have actively chosen.

Anyway, the deadline for projects to be handed in passed last week so I’ve got a stack of those to mark which, you will realise, why I am indulging in a displacement activity by writing this blog post. My plan is to mark these during this week so that they’re done before the written examinations come in, which means by next Monday (19th). This year we have had a bigger class than usual, so this I have quite a lot of marking to do.

Last week also saw the deadline for the last assignment in Particle Physics to be handed in. I want to mark those as soon as possible, but I’m not sure I’ll have time this week, but I should be able to do them before the exam on the 27th.

Incidentally, one of the submissions of the last assignment came with a note that this was the last assignment the student had done in Maynooth and that the first one he had done, when he was in his first year, was also set by me.