It has taken a bit longer that I expected to get this far but I have now completed the grading of one of my modules. It wasn’t the written examination that took all the time, but the marking of the computational physics projects. This is always a slow job but for some reason it took even longer this year. Anyway, all components of the assessment for that module are now done and dusted and everything uploaded.
To add to the fun and games, last week I did the biannual trip to Naas for my anti-arthritis injections. I’ve been doing this regularly for some years now and it has become routine. When I first started I was told that there was a risk of one or both knees swelling up, but that has never happened. Until last week, that is. My right knee decided to swell up alarmingly. Although this was not really painful, I was forced to stay at home to rest and periodically apply a bag of ice. That worked well enough that I could go to last Friday’s concert (with the aid of a walking-stick) but it wasn’t until Sunday that I was properly recovered.
The alarm having passed I am now starting to feel the benefit of the jabs. I am planning sometime soon to walk from Maynooth to Dublin along the Royal Canal, that being the last leg of the National Famine Way. I want to be sure I can manage the 27km walk before attempting to do the full walk later in the summer. The weather is set fair for a few days so I might give it a go next week, assuming I manage to finish all my examining duties promptly. It’s the season finale at the National Concert Hall next Friday – followed by a long weekend break when I will be travelling a little, so I might try to do it on Thursday.
My next examination is not until Tuesday morning so, after several days of being shut away doing corrections, I can now spend a few days until the scripts are ready to collect doing numerous things that I’ve let slip while I’ve been busy. For one thing I have an inbox full of unanswered emails to attend to.
But for now I’m quite tired and in the mood only to vegetate.
In Irish, a pine marten – such as the one shown on the left – is cat crainn which means literally “cat of the tree” or, less clumsily, “tree cat”. The word for “tree” in the nominative case is crann and the genitive meaning “of the tree” is crainn. They are about the size of a domestic cat.
I mention the pine marten partly because a while ago it came up on Bitesize Irish, which is a way I’m trying to add to my meagre vocabulary of Irish words and phrases, and partly because the story of these animals is quite fascinating. Pine martens have existed in Ireland for thousands of years alongside native red squirrels whose habitat is similar. More recently the invasive grey squirrels arrived and bullied their smaller red cousins into decline. Pine martens were also in serious decline because of hunting and deforestation and were critically endangered until recently, when legal protections were introduced. Now the population is growing and they are spreading into new areas.
Pine martens are fierce predators who eat all kinds of small mammals including rats and voles as well as squirrels. Having coexisted with them for ages, red squirrels have learnt to avoid pine martens quite effectively. Pine martens will try to catch them but don’t find them easy prey. Grey squirrels are a different matter, though, so there has been a big difference in the rate of predation with the grey squirrels being forced out of many areas. This differential effect has been excellent news for the red squirrels, whose population is recovering strongly.
I’m told that there are pine martens on the campus at Maynooth, though I have never actually seen one in the flesh and am not sure where they live. This is not surprising – they are secretive and good at hiding. There are grey squirrels on Maynooth campus too. I have seen many. I’ve never seen any red squirrels though. If the pine martens thrive, perhaps that will change?
Although undeniably cute, with their chocolate-coloured coat and creamy yellow bib, pine martens are wild animals and will bite if you give them cause. The word for “bite” in Irish is greim.
Today is the penultimate day of teaching in the Spring Semester at Maynooth University and I’m here in the Computer Lab for the last time. This afternoon’s session is just a drop-in consultation session for Computational Physics students doing their projects and although it has been busier than previous weeks it has not exactly been a hive of activity. The deadline for project submissions is tomorrow afternoon, so I was expecting a bit of a rush at this session, which is the last of its type, and also at my office hour this morning. I did have one student attend this morning, and a couple of others this afternoon, but other than for them it has been quiet.
On the other hand, over a day before the deadline, three students have already submitted their project reports and code. I’m impressed with that, but also a little surprised. I’ve come to expect just-in-time delivery for such things.
Yesterday I did my last particle physics tutorial of the year and followed that immediately afterwards I attended a long session of final-year project talks, from 3pm to just after 6pm. It is obvious that some students find these presentations a bit of an ordeal but it is important to learn how to present your work so such things are part of the rite of passage. It is good for staff to get an overview of the all projects being done in the Department too.
In previous years the final project presentations for students in the Departments of Theoretical Physics and Experimental Physics were done separately, the former having a somewhat smaller audience than the latter. The two previous Departments having merged into a single Department of Physics, this time round we had all the talks together (though spread over two days, yesterday and the Wednesday before). I think the combined sessions worked quite well and we will probably do it this way next year.
After the session of talks there was a small drinks party in the foyer of the Science Building. That was a nice occasion, and it struck me that it would have been the last time this group of students would all meet together until their graduation. Tomorrow I do my last particle physics lecture and it will be the last time I see quite a few of the students in that class until graduation too. They’ve been a nice group to work with, very engaged and easy to interact with. It is a great pleasure to be teaching students who are eager to learn . That’s the aspect of academic life I’ll miss the most when I retire.
This lunchtime I saw Maynooth University Library Cat in a more pastoral setting than usual. Having just had his lunch, it being sunny, and the area around the Library being somewhat busy, I reckon he had it in mind to have a quiet snooze in the shade of the trees.
So here I am, back home in Maynooth after a long weekend away in Not Maynooth. The weather forecast for Maynooth was typically dreadful for a Bank Holiday weekend but I have to say I can’t sign see much sign of the heavy rain that was predicted.
On the way back I checked the cricket scores and discovered that Glamorgan won their County Championship game against Hampshire by an innings and 69 runs. That’s worth marking on this blog because it is their first win in Division One since 2005. Historic. Their first three games this season ended in a defeat and two draws, so it was 4th time lucky. Well played to them!
Anyway the last four days of teaching term beckon, including a 9am lecture tomorrow morning, so I had better leave it at that and try to get into a work frame of mind.
So now after a half-term mid-semester study break, including one day of actual holiday, that was both pleasant and eventful it will soon be time to return to the fray, at least for 9 working days. A full week of lectures, labs and tutorials starts tomorrow but the following week end a day early, on Thursday 2nd April, because 3rd April is Good Friday. Campus is closed then, as it is on Easter Monday and there are no lectures for the rest of that week. I’ll miss a lecture on Good Friday. I’m sure the students will be distraught, but that’s the way of things.
Anyway, with the Eastertide coming in and yesterday being World Poetry Day I thought I’d share a couple of pictures (taken two days apart) of the Japanese cherry trree in my back garden along with this haiku on a theme by A.E. Housman:
Loveliest of trees? Not yet, but soon there will be Bloom along the bough...
I hadn’t seen Maynooth University Library Cat for a while, so it was nice to see him today, on post, as large as life. Approaching him I saw him receive a number of back scratches. It seems he enjoyed them and continued to present his back to passers-by in the hope of getting more.
So here I am, back on campus at Maynooth University, for the first time in 2026. I took a longer route than usual to my office this morning as I thought the South Campus would look pretty with all the frost around, as indeed it was:
The temperature was well below freezing last night. Today was refuse collection day and I happened to see the crew empty my bins first thing. They struggled to do so as the lids were frozen down. I think there might be a bit of a thaw during the day, but the forecast is that the temperature will barely make it above zero and there’ll be more frost tonight. No snow is forecast for Maynooth.
I topped up the bird feeders in my garden before I left for work. On Saturday I bought a new feeder designed for smaller and nimbler birds; since then there have been several blue tits and various finches using it. I’ve got nothing against the larger birds, but they do tend to hog the other feeders. I suppose it won’t be long until crows try to wreck the new one, but for the time being it’s intact.
Anyway, I have to prepare a revision lecture for this afternoon so ahead of that I need to do a bit of revision myself…
For last year’s words belong to last year’s language And next year’s words await another voice. And to make an end is to make a beginning.
From Four Quartets, ‘Little Gidding’ by T. S. Eliot.
So it’s New Year’s Day. Athbhliain faoi mhaise dhaoibh!
For me this brings the festive season to an end. I’ve been eating and drinking too much for the last week as one is supposed to. Last night I brought in the new year with a dish of roast duck and the last of the Christmas vegetables. I think I’ll be buying any sprouts and parsnips for a while. When the iron tongue of midnight told twelve, I had a glass of excellent Irish Whiskey in the form of Clonakilty Single Pot Still (46%). It has been a most enjoyable week, but heightened level of self-indulgence has been rather exhausting, and I’ll be taking things a bit easier for a few days before I go back to work on Monday. It’s hard work being a glutton.
Anyway, I thought I’d mention a few things looking forward to the New Year.
January will, as usual, be dominated by examinations, and especially the marking thereof. The first examination for which I am responsible is on January 12th. The examination, incidentally, will be held in the Glenroyal Hotel in Maynooth as the Sports Hall on campus – usually a major exam venue – is out of commission due to building work.
I have a couple of writing deadlines, in addition to having to correct the examinations, so it will be a busy January.
Then February sees the start of a new semester. I’ll be teaching Particle Physics again. I was a bit surprised to be asked to teach this again, as I was filling last year in for our resident particle physicist who was on sabbatical. I’m glad to be able to continue with it given the work I put in to do it last time. My other module is Computational Physics which I have taught at Maynooth every year since 2018, apart from 2024 when I was on sabbatical. This time, however, I will have to think hard about how to deal with the use of generative AI in the coursework.
Will I get to teach any astrophysics or cosmology at Maynooth before I retire? That’s looking very unlikely. I think it’s probable that the new academic year, starting in September, will find me teaching the same modules as last year.
The year ahead will also see the first data release (DR1) from the European Space Agency’s Euclid Mission. The date for that will be October 21st 2026. This is a hard deadline. There’s a huge amount of work going on within the Euclid Consortium to extract as much science as possible from the observations so far before the data becomes public, but you’ll have to wait until October to find out more!
This reminds me that I forgot to share this nice image from Euclid that was released just before Christmas.
Galaxy NGC 646 looking like a cosmic holiday garland in this image from the European Space Agency’s Euclid space telescope.
Once upon a time, WordPress used to send an email about the year’s blog statistics, etc, but it stopped doing that some time ago. I checked this morning, however, and learned that traffice on the blog in 2025 was up by 2.6% since 2024. I’m not sure how meaningful this is, because there is so much scraping going on these days. That figure doesn’t include the people who get posts via email or RSS or via other platforms such as the Fediverse.
While I’m on about social media I’ll mention a stat about my Bluesky account. I joined Bluesky in 2023 when I abandoned Xitter. As of today I have 8,078 BlueSky followers, which is more than I ever had on X, and with far higher levels of engagement and much friendlier interactions.
I’m also on Mastodon, although with a much smaller following (1.4k). This blog also has a separate existence on Mastodon here. I very much like the federated structure of Mastodon (which, incidentally, accords with my view of how academic publishing should be configured) and am a bit disappointed that it doesn’t seem to have caught on as much as it should.
That disappointment pales into insignificance, however, with the outrage I feel that my employer – along with most other universities – persists in using Xitter. Touting for trade in a far-right propaganda channel is no way for a institution of higher education to behave. You can read my views on this matter here.
And finally there’s the Open Journal of Astrophysics. The year ahead will see the 10th anniversary of our first ever publication – on an experimental prototype platform, long before we moved to Scholastica. It will be next Monday before we resume publishing, starting Volume 9. Which author(s) will be the first to get their final versions on arXiv in 2026? Stay tuned to find out!
Walking home through Maynooth this evening, the streets filled with partying students, I was reminded of this:
It’s the central part of the triptych Das letzte Gericht (The Last Judgment) by Hieronymus Bosch. The medium is oil on oak panel and it measures 164 x 127 cm. The original work is in the Academy of Fine Arts in Vienna.
The figures at the top, looking down on the chaos, are clearly identifiable as members of academic staff, while those below are students. I’m sure that if Christmas jumpers had been invented in 1486, when the work is thought to have been completed, Bosch would have painted a few in…
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In the Dark 