Archive for the Maynooth Category

After Conferring

Posted in Biographical, Maynooth with tags , , on October 30, 2025 by telescoper
from left to right: Dr Neil Trappe (HoD, Physics); Dr John Regan; Dr Aoibhinn Gallagher; Dr Matthew Birney; Dr Hannah O’Brennan; me; Dr Jonivar Skullerud

Yesterday I attended a conferring ceremony at Maynooth which was a very special occasion because it involved the formal award of the PhD degree to Aoibhinn Gallagher whom I supervised. Two other research students from the Department of Physics got their PhDs yesterday too; Matthew Birney and Hannah O’Brennan. Matthew (ESO Garching) and Aoibhinn (Bielefeld) both now have postdoctoral positions in Germany, incidentally.

These events are not actually called Graduation Ceremonies here in Ireland but Conferring Ceremonies. I was impressed that the local suppliers of academic dress, Phelan Conan were able to supply the correct 1989 vintage DPhil gown from Sussex University as opposed to the less interesting modern one. I would have worn it for the picture above, but by the time we found Hannah to take the photo I had already returned it to the supplier. Here are two more with myself in the gown and mortarboard:

You can see a picture of me wearing the same sort of gown in Brighton back in 1989, when I was a skinny young queen, here. I’ll add more pictures from yesterday if and when I get them.

As well as the PhDs we also saw the entire class of our MSc in Theoretical Physics and Mathematics get their degrees. I haven’t got any photographs of them, but will add any that I find. Here is a photograph of them outside the TSI building, courtesy of Jonivar Skullerud.

After the ceremony, those who got their degrees went for dinner with their respective parents, siblings and others who had come to attend the ceremony. We did meet up later on, however, in a local pub for a drink or several. In among all that I didn’t have time to write a post, bringing to an end a blogging streak of 109 days.

Graduation ceremonies are funny things. With all their costumes and weird traditions, they even seem a bit absurd. On the other hand, even in these modern times, we live with all kinds of rituals and I don’t see why we shouldn’t celebrate academic achievement in this way.

I like graduation ceremonies, actually. As each person walks across to be presented with their scroll you realize that every one of them has a unique story to tell and a whole universe of possibilities in front of them. How their lives will unfold no-one can tell, but it’s a privilege to be there for one important milestone on their journey, even those from other departments with whom you have had no contact at all.

I always find these ceremonies bittersweet occasions, though. There’s joy and celebration, of course, but these are tempered by the realization that many of the young people whom you’ve seen around long enough to grow accustomed to their faces, will disappear into the big wide world, in some cases never to be seen again. Although everyone is rightly proud of the achievement – either their own in the case of the graduands or that of others in the case of the guests – there’s also a bit of sadness to go with the goodbyes. It always seems that as a lecturer you are only just getting to know students by the time they graduate, but that’s enough to miss them when they go.

Anyway, all this is a roundabout way of saying congratulations once more to everyone who graduated yesterday, including Matthew, Hannah and Aoibhinn, and I wish you all the very best for the future!

It’s That Time Again

Posted in Biographical, Maynooth with tags , , , , on October 26, 2025 by telescoper
Photo by Ola Dapo on Pexels.com

It’s Sunday 26th October 2025 and in the early hours of this morning the clocks went back, bidding goodbye to Summer Time. You can tell I’m an oldie because I have quite a lot of time-keeping devices around the house that need to be set by hand. My computer updates itself, of course, but I’m not sure if WordPress does. I’ll find out when I publish this post!

I’ve written before about the silly business of moving the clocks backwards and forwards (e.g. here) so I won’t repeat it all again. I will mention, however, that some time ago, before the Covid-19 Pandemic, the European Parliament approved a directive that would abolish `Daylight Saving Time’.  Unfortunately that plan was ‘paused’ although Spain is apparently going to try to get it going again.  I’ve long felt that the annual ritual of putting the clocks forward in the Spring and back again in the Autumn was a waste of time effort, so I’ll be glad if and when this silly practice is terminated. It would be far better in my view to stick with a single Mean Time throughout the year. I’m disappointed that this hasn’t already happened.

Anyway, talking of time, we have now completed five weeks of teaching in Semester 1 at Maynooth University. Tomorrow (Monday 27th October) is the October Bank Holiday and next week is Study Week so there are no lectures or tutorials. We do, however, have conferring (graduation) ceremonies including one that involves my recently-completed PhD student. Looking at my diary I notice also that I also have an appointment for my flu jab and Covid-19 booster, another sign that I’m an old codger.

Normally Study Break comes halfway through the 12-week teaching term but this year it splits 5-7. It did so last year too, actually. I am not unhappy to have an earlier break as I’m very tired, but I am conscious that this is going to make for a longer run-in to the Christmas holiday. We are supposed to teach up until Friday 19th December, but I don’t have any lectures on that day.

I’m not sure how much studying the students do during Study Week, but it’s not a holiday for academic staff even though there is no undergraduate teaching. Among other things we have examinations to write for the January examination period, which must be checked and printed well in advance. The deadline for these is November 3rd, so I have all week but I am planning to spend next weekend elsewhere so I need to get them done beforehand.

Polling Day

Posted in Maynooth, Politics with tags , , , on October 24, 2025 by telescoper

So we come to it at last. After weeks of campaigning, today’s the day we get to cast our votes in the election of a new President of the Republic of Ireland. All the polls suggest that the winner will be Catherine Connolly, and indeed the only posters I have seen around my neighbourhood are for her.

The only message I got through the door was for her too:

I shall shortly be heading to the Presentation Girls National School in Maynooth, which is my polling station. I’ll be voting for Catherine Connolly, in case you want to know. She is clearly the better candidate; my opinion of Heather Humphreys went down every time I heard her speak. Anyway, we should know the result by tomorrow evening when we’ll find out whether the opinion polls are right.

Today also happens to be the last day before our study break in Maynooth University and the start of a long weekend. I did my last teaching session of the week yesterday, actually. That’s why I didn’t have to get up early to vote before work. It also means have research on the agenda for today. Monday 27th October is a Bank Holiday and there are no lectures for the rest of the week. There are conferring ceremonies, though, including one for my recently-completed PhD student on Wednesday.

Update: I voted as planned. The polling station was fairly busy.

On Cosmography (and going Mainstream)

Posted in Maynooth, The Universe and Stuff with tags , , , , on October 19, 2025 by telescoper

On Friday I attended a colloquium in the Physics Department at Maynooth University by Asta Heinesen of the Niels Bohr Institute in Copenhagen. The talk had the title of Cosmography of the local Universe, as shown on the first slide:

Asta talked about a very interesting programme of work that takes a different approach from most of modern cosmology in that it avoids making the prior assumption of global homogeneity and isotropy embodied by the Friedmann–Lemaître–Robertson–Walker metric. In particular, instead of assuming the isotropic expansion of the Universe, it tries to determine its properties directly using only such measurements as luminosity distances and redshifts. This method is not entirely model-independent because it does assume Lorentz invariance and the conditions required for the Etherington Reciprocity Theorem to hold, but it does not assume any particular form of the metric, so can be applied on scales where the distribution of matter is inhomogeneous and isotropic, e.g. in our local neighbourhood.

To apply this “metric-free” idea one has to construct as general as possible description of the kinematic properties of the underlying matter flow, allowing the global expansion to be anisotropic, and for there to be both rotation and shear. Obviously one would need a large number of measurements to extract anything like a full description of the matter flow, so generally one is restricted to deriving the low-order multipoles (monopole. dipole and quadrupole) as well as the observer’s velocity with respect to the large-scale matter flow.

I found Asta Heinesen’s seminar very stimulating in itself, but it was also nice to see that one of the papers on which it was based is published in the Open Journal of Astrophysics:

When I checked it, I found it was published on my birthday! Here is the overlay:

I announced it on this blog here.

I freely admit that I feel quite proud to have played a small part in helping to get such interesting work published. I’m seeing more and more papers referenced like this, actually. I was reminded of the recent announcement of this year’s list of MacArthur Fellows. among them Kareem El-Badry who has published quite a few papers with the Open Journal of Astrophysics. His biography on the MacArthur Foundation page includes this:

He has published articles in Monthly Notices of the Royal Astronomical SocietyThe Astrophysical Journal, and The Open Journal of Astrophysics, among other leading scientific journals.

I’m pleased to see us listed with the established names. I mention this just in case there are still people out there who think it might damage their career if they publish with a non-mainstream journal. We are mainstream now…

Testing Times

Posted in Artificial Intelligence, Education, mathematics, Maynooth with tags , , , , on October 17, 2025 by telescoper

As it was foretold, I conducted my first set of my new-style in-class tests this week. These tests, as I mentioned a while ago,  were introduced because of concerns about the integrity of the coursework element of my modules in the light of improvements in Generative AI.

The main events – one for each of my modules – were both yesterday, but one student couldn’t make it at the scheduled time (for good reasons) so I set a special test this morning, which is now over. Because access to the internet is not allowed these tests are invigilated.

It’s been quite a while since I was last required to invigilate a full examination. I think it was back in Nottingham days, actually. I never enjoyed this task even though I took work to do it wasn’t really possible to do much as one had to keep one’s eyes on the students. Crosswords could be done; these are good in this situation because you can solve a few clues at a time. It was disappointing if I happened to take one that was easy enough to do quickly, as there was little to stave off the boredom after completing it. Other things I used to do included counting the number of right-handed and left-handed students, though I never did any detailed statistical analysis of the results.

Anyway, my recent class tests were a bit different. Designed to fit in a lecture slot of 50 minutes duration, they were much shorter than traditional end-of-year exams. They were also “open-book” style, so students could bring anything on paper that they wanted. Phones and laptops were, however, forbidden. During these tests I just sat quietly with my laptop getting some work done, with an occasional glance at the students. It was actually nice to be locked away like this with no disturbance. Time passed very quickly, actually, though perhaps not as quickly as it did for the students taking the tests.

When I first told the students that the tests would be “open-book”, I think they all assumed that would make them easy. I don’t think that was the case, however, as the questions are designed so that the answers can’t be obtained immediately by looking them up in a textbook. Also, having things on paper rather than in your head does slow you down. I’ve never seen much point in examinations as speed tests. I designed this week’s tests so that the questions could be done in about 30 minutes, but the formal duration was 50 minutes. I encouraged students who finished early to use the remaining time to check their work, but some did leave early.

This new regime also meant I had number of teaching sessions without the exertion of having to do any actual teaching, which was nice. The downside is, of course, that I now have stacks of class tests to correct. That will be payback time.

I won’t know how well the students have coped until I have got their grades, but informal feedback was that they seemed reasonably content with the new method of assessment. I’ll be doing the next ones in about three weeks.

Quarter-Term – Testing Time

Posted in Education, mathematics, Maynooth with tags , , , on October 13, 2025 by telescoper

I’ve just noticed that three teaching weeks have passed and we’re already into the fourth. Tempus fugit. Both the modules I am lecturing this semester are divided into four chunks of approximately equal size. For example, MP469 Differential Equations and Complex Analysis splits into: Ordinary Differential Equations; Partial Differential Equations; Complex Functions and Derivatives; and Complex Integration. Though technically not on the syllabus, I also do couple of lectures on Conformal Mappings because I think they’re cool.

As I mentioned a while ago,  I am concerned about the integrity of the coursework element of these modules in the light of improvements in Generative AI. Only a couple of years ago GenAI could not solve the sort of problems I set for homework, but now it generally can. I don’t altogether object to people applying artificial intelligence to solve mathematical problems, but the main issue is that it does make mistakes. Moreover, instead of saying “sorry I can’t solve that problem” it will generally present a superficially plausible but incorrect solution. Although students will probably use GenAI for problem-solving, I think it is important that they learn to do such problems themselves, otherwise they won’t know whether the solution coughed up by the algorithm is correct or not.

The only way to learn mathematics is by doing it. If students get GenAI to do the mathematics for them, then they won’t learn it. In the past we have given marks for coursework (usually 20% of the module mark) mainly to encourage students to do them. Students who don’t bother to do these exercises generally do badly in the final exam (80%).

For these reasons I am moving the assessment from weekly homework sheets – which could be tackled with AI – to supervised in-class tests for which students can use notes on paper, but not laptops or phones. I will of course give examples for the students to have a go at themselves, and I will give feedback on their attempts, but they will not contribute to the module score. Another advantage of this approach is that students won’t have to do so much work against deadlines outside of class.

What I’ve decided to do is have one class test for each of the four sections of each module. Given that we’re about a quarter of the way through the term, it’s time for the first ones. This week there will be a class test on Ordinary Differential Equations. I’ve never been enthusiastic about examinations being speed tests, so I’ve decided to set problems to be done in a 50-minute session which would be expected to take about 30 minutes in a formal end-of-term examination.

I have to make a short work-related trip that will keep me away on Wednesday, but I’ve already written the test questions, and will make arrangements for someone to supervise the tests if for some reason I don’t make it back to Maynooth on time…

Anyway, although we’ve been teaching for three weeks I still have to check my calendar to remember which room I’m supposed to go to before every lecture. Perhaps by Christmas I will have learned them off by heart…

Storm Amy

Posted in Biographical, Maynooth with tags , , on October 4, 2025 by telescoper

It’s been an interesting couple of days while Storm Amy worked its way over the island of Ireland and on to Scotland. The worst hit County in the Republic was Donegal but even here in the shelter of County Kidlare there were gusts over 100 hm/h on Friday, and quite a lot of rain as you can see from the first two radar* plots above. Quite a few people, quite reasonably if they were heading towards the weather, went home a bit early on Friday.

Initially the wind was southerly, and it felt surprisingly warm, despite the rain, but by this morning it had veered westerly, the rain had turned to showers, and the wind has now moderated substantially.

I spent some time this afternoon clearing up leaves and small branches that had fallen during the storm, as well as looking for signs of damage. But all’s well. No power cuts either. My big worry however is this tree just outside my house:

It is far too tall for its location, and has been leaning alarmingly for some time. If it topples in the direction it is leaning it will hit my house. I’ve been on to Kildare County Council a few times about it, actually. I don’t want them to chop it down, but I do think they should cut back the upper branches so that if it falls it won’t hit either mine or my neighbour’s house. Unfortunately, they’ve refused to do anything at all. Time for another go at them, I think. It will cost them a lot less to deal with it now than the sum they will have to pay me if serious damage is caused by their negligence.

*In case you’re interested, Met Éireann’s weather radars are located at Dublin and Shannon, and operate at 5.64 GHz (C-band).

A Meme for Modern University Management

Posted in Education, Maynooth with tags , , on October 1, 2025 by telescoper

This variation on an old meme seems relevant to the state of the modern university system:

I posted a more detailed version on BlueSky here.

To pre-empt accusations that this is a misleading representation of the true state of affairs, I admit this is so. In a more accurate version there would be many more members of the Senior Management Team. Moreover, the President and Senior Management Team appear in the photo to be aware of, and some are even showing some interesting in, the activity of the lecturer.

Summer’s Over

Posted in Biographical, Cricket, Maynooth with tags , , , on September 28, 2025 by telescoper

I’ve done quite a few posts recently about the ending of summer – the Autumnal Equinox, the resumption of teaching, the start of a new season at the National Concert Hall are three indicators – but now we really have reached which I regard as the definite conclusion. Yesterday saw the last day of the last round of matches in cricket’s County Championship.

I haven’t followed cricket very closely since I moved to Ireland, but I do look and see how Glamorgan are getting on. The County Championship started very poorly for them, with a thrashing by Middlesex, but they improved substantially and went into the last round of matches secure in 2nd place of Division 2. They lost their last match in Cardiff against a team from the Midlands, by 7 wickets – a game that actually ended on Friday – but they still finished second. That means that they get promoted to Division 1 for the first time in 21 years.

I wouldn’t bet against them being relegated straight away, though. Last time they got promoted (in 2004) they played just one season (2005) in the First Division, during which they lost 14 of their 16 matches, and dropped back down. They almost got promoted in 2010 but were pipped for second place by Worchestershire, who were the beneficiaries of an exceedingly generous – let’s put it that way – declaration by Sussex that allowed them to win their last match. Anyway, to avoid the drop next season Glamorgan need to improve their pace attack considerably. I wonder who, if anyone, they’ll sign?

Glamorgan plays an important role in the international cricket ecosystem, especially with the Ashes coming up. Many of Australia’s star players – including Marnus Labuschagne, Michael Neser, and Usman Khawaja – only came to prominence after stepping up to the big time to play for Glamorgan.

Knowing that the cricket season was almost over, on Friday I decided to give my front lawn one last mow too. The mower is now in the shed until next spring. Leaves have been falling for some time already, so I swept up what I could after cutting the grass. That reminds me to share this, which I found on Bluesky:

I really hate those things

Anyway, we have completed one week of teaching at Maynooth University which passed off reasonably smoothly. I only had one timetabling glitch, but that was resolved trivially by just swapping two sessions. This year the Department of Physics has quite a lot of students in the final-year on the Physics with Astrophysics programme, run before the merger by the Department of Experimental Physics. Now we’re combined we can share the load and I’ll be supervising a couple of students on an astrophysics project, which will be a new experience. I haven’t really taught much astrophysics since coming here nearly eight years ago, so this will make a nice change.

Autumnal Equinox 2025

Posted in Biographical, Education, Maynooth, The Universe and Stuff with tags , on September 22, 2025 by telescoper

Just a note to say that the Autumnal Equinox (in the Northern hemisphere) takes place this evening (Monday 22nd September 2025)  at 19.20 Irish Summer Time (18.20 UTC).

Although  the term `equinox’  refers to a situation in which day and night are of equal length, which implies that it’s a day rather than a specific time, the astronomical equinox is more accurately defined by a specific event, i.e. when the plane defined by Earth’s equator passes through the centre of the Sun’s disk (or, if you prefer, when the centre of the Sun passes through the plane defined by Earth’s equator). Day and night are not necessarily exactly equal on the equinox, but they’re the closest they get. From now on days in the Northern hemisphere will be shorter than nights and they’ll get shorter still until the Winter Solstice on Sunday 21st December 2024 at 3.03 pm Irish Time.

Many people take the autumnal equinox to be the end of summer. There is a saying around these parts, however, that `Summer is Summer to Michaelmas Day’ (September 29th), which is not until next week. I must say, though, though it doesn’t feel particularly summery this morning as there is a chilly wind blowing from the North.

Anyway, make the most of the Equinox because there is a rumour circulating that The Rapture will occur tomorrow (Tuesday 23rd September).