Cardiff to Dublin via Belfast

I thought I write a brief post to arising from today’s travel difficulties, really just to make a record of the episode for posterity.

As last Wednesday I got up early this morning (4.30am) to get the 7am FlyBe flight from Cardiff to Dublin, due into Dublin at 8.05am. Having only hand luggage, as usual, I proceeded straight upstairs to the departure area only to find that the screen said the flight was cancelled, and directed passengers intending to travel on it back downstairs to the `Disruption Desk’ .

A long queue had already formed by the time I got there, but I got to the desk fairly quickly. The assistant explained that the cancellation was due to `staff sickness’ (i.e. they were short of a pilot) and the only option on offer was to fly to Belfast whence a bus would be provided to Dublin. The Belfast flight should have left at 6.15am but was being held for passengers to Dublin. I was also given a £5 refreshments voucher.

I thought a moment and then decided to accept this offer. I didn’t have any morning appointments today, but definitely had to get to Maynooth somehow by tomorrow morning as I have a lecture to deliver.

The plane left Cardiff about 7.15am and arrived in Belfast around 8.10am but when I emerged from the arrivals area there was no bus. In fact it took about 45 minutes to arrive, and we didn’t get going until about 8.55am. Many of the passengers were clearly nervous about missing connecting flights in Dublin, including a group of women planning onward travel to the USA, but the trip was fairly uneventful apart from the fact that the toilet was out of commission necessitating a stop so that people could use the facilities in a service station.

I can confirm that there is no visible border between Northern Ireland and the Republic on the road between Belfast and Dublin, although it does change name from A1 to M1 on the way. The distance between Belfast and Dublin by road is about 100 miles and it took just over two hours. I arrived at Terminal 1 of Dublin Airport at 11.05, almost exactly three hours late. I thought that wasn’t too bad a result given the chaos in Cardiff when I left but it was still a frustrating morning. I had to wait until 11.50 for the bus to Maynooth, where I finally arrived about 12.40.

I will of course be submitting a request for the compensation to which I am entitled for the delay, but above all I hope that those whose arrangements were even more seriously disrupted than mine managed to get to where they needed to go in the end.

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A Day at DIAS

Last night I flew back to Ireland for a few days of work here before the Easter Weekend. The schedule of flights from Cardiff to Dublin has changed for the spring, with the afternoon flight much later: at 7.45pm instead of 3.40pm, so I left from Cardiff after work on Monday and had dinner in the airport (an overpriced and barely edible beefburger).

Although there is no teaching in either on Maynooth or Cardiff this week I had to come to Ireland for a few reasons, including giving a seminar today at the Dublin Institute for Advanced Studies (DIAS) this afternoon which provided me with the chance to visit it for the first time.

It being a pleasant morning I walked to DIAS from Connolly Station after taking the train there from Maynooth. It’s about half an hour’s walk.

DIAS is actually spread over several sites. Officially my talk was at the School of Theoretical Physics, but there were some people there from the School of Cosmic Physics, which is located not too far away. There were also a few people from Maynooth there, as there are a number of collaborations going on between the two institutions involving staff and students. There was also a visitor from even further afield, in the form of Cormac O’Rafferty who also visits this blog from time to time.

Anyway I had a nice curry for lunch before the talk, which generated a lot of questions from which I infer that it was either confusing or stimulating (or possibly both). Here are the slides in case anyone feels like taking a look.

For a change I decided to take the train back to Maynooth from Pearse rather than Connolly, but as it was rush hour I found it packed.

Maynooth by contrast is very quiet with most students away for the break. I can also report that the annoying roadworks that have been going outside my Maynooth residence for months have now finished.

Anyway, thanks to my hosts at DIAS for inviting me and I hope my talk was reasonably bearable. Hopefully this will be the first visit of many!

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De Valera’s ‘Last Letter’, Kilmainham, May 1916

I’ve just been reading Charles Townshend’s book ‘Easter 1916: The Irish Rebellion’ and was searching for the photograph it includes of Eamon de Valera surrendering with his men at the end of the uprising. I found it at this excellent blog post, which includes a great deal of other interesting information, so I thought I’d reblog the whole thing!

The Cricket Bat that Died for Ireland

The National Museum holds many of the last letters written by the men executed in Kilmainham Gaol in May 1916 for their part in the Rising. The collection includes Patrick Pearse’s letter to his mother, and letters from Con Colbert, Michael Mallin, Eamonn Ceannt and others, written to family and friends. All these letters have common themes; a final goodbye to loved ones, a sense of acceptance of their fate and a pride in having fought for their ideals and a free Ireland. They make for emotional reading, especially with the knowledge that within hours of writing their author was dead.

Among these is also a contemporary manuscript copy of a last letter written in May 1916 by Eamon de Valera, who had his death sentence commuted to penal servitude for life and was not executed along with the other leaders of the Rising. It was donated to the museum…

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Planes, Trains and Quaternions

Well, here I am in Maynooth for the first time in 2018. I flew over from Cardiff yesterday. The flight was rather bumpy owing to the strong winds following Storm Eleanor, and it was rather chilly waiting for the bus to Maynooth from Dublin Airport; nevertheless I got to my flat safely and on time and found everything in order after the Christmas break.

This morning I had to make a trip by train to Dublin city  to keep an appointment at the Intreo Centre in Parnell Street, which is about 15 minutes walk from Dublin Connolly train station. I bought an Adult Day Return which costs the princely sum of €8.80. Trains, stations and track in Ireland are maintained and operated by Irish Rail (Iarnród Éireann), which is publicly owned. Just saying.

The distance between Maynooth and Dublin about 25 km, which takes about 40 minutes on the local stopping train or about 25 minutes on the longer distance trains which run nonstop from Maynooth to Dublin. As it happens I took one of the fast trains this morning, which arrived on schedule, as did the return journey on a commuter train. My first experience of the Irish railway system was therefore rather positive.

I had thought of having a bit of a wander around the city on my way to Parnell Street but it was raining and very cold so I headed straight there. I arrived about 20 minutes ahead of my scheduled appointment, but was seen straight away.

The reason for the interview was to acquire a Personal Public Services Number (PPSN), which is the equivalent of the National Insurance Number we have in the United Kingdom. This number is needed to be registered properly on the tax and benefit system in Ireland and is the key to access a host of public services, the electoral roll, and so on. You have to present yourself in person to get a PPSN, presumably to reduce the opportunity for fraud, and I was told the interview would take 15 minutes. In fact, it only took about 5 minutes and at the end a photograph was taken to go on the ID card that is issued with the number on it.

So there I was, all finished before I was even due to start. The staff were very friendly and it all seems rather easy. Fingers crossed that the letter informing me of my number will arrive soon. It should take a week or so, so I’m told. After that I should be able to access as many personal services as I want whenever I want them. (Are you sure you have the right idea? Ed.)

For  the return trip  to Maynooth I got one of the slower commuter trains, stopping at intermediate stations and running right next to the Royal Canal, which runs from Dublin for 90 miles through  Counties Dublin, Kildare, Meath and Westmeath before entering County Longford, where it joins the River Shannon. One of the intermediate stations along the route next to the canal is Broombridge, the name of which stirred a distant memory.

A quick application of Google reminded me that the town of Broombridge is the site of the bridge (Broom Bridge) beside which William Rowan Hamilton first wrote down the fundamental result of quaternions (on 16th October 1843). Apparently he was walking from Dunsink Observatory into town when he had a sudden flash of inspiration  and wrote the result down on the spot, now marked by a plaque:

Picture Credit: Brian Dolan

 

This episode  is commemorated on 16th October each year by an annual Hamilton Walk. I look forward to reporting from the 2018 walk in due course!

P.S. Maynooth is home to the Hamilton Institute which promotes and facilitates research links between mathematics and other fields.

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Dublin Back

I’m just back from a flying visit to Dublin, where I gave a talk yesterday at a meeting of the Astronomical Science Group of Ireland (ASGI), an organization which promotes scientific collaborations between individuals and institutions on both sides of the border between Northern Ireland and the Republic of Eire. The venue for the twice-yearly meetings moves around both countries, but this time it was held in the splendid environment of Trinity College, Dublin.

It turned out to be an easy trip from Cardiff to Dublin and my first opportunity to try out Cardiff’s fine little airport. A small airline called Air Arann operates the route to Dublin from there, and it all went to schedule despite the plane having to struggle against a 70 mph head wind across the Irish sea. For our small propeller-driven plane, that made a signficant difference to the flying time.

Arriving in Dublin on Thursday I had time to have a nice dinner before settling in to my hotel in the Temple Bar region of the city. There’s a huge concentration of bars and nightclubs there and it’s a traditional area for Stag and Hen Parties. There was plenty of evidence of drunken debauchery going on into the early hours of the morning, which remind me of the way the Irish rugby fans carried on last weekend in Cardiff.

Anyway, the meeting itself was interesting with a wide range of talks most of which were given by PhD students. I enjoy meetings where the younger scientists are encouraged to speak; too many conferences involve the same people giving the same talk time after time. Solar Physics was particularly  well represented, and I learned quite a bit about about things that are far from my own province. 

There isn’t much actual cosmology done in Ireland (North or South) so my brief as invited speaker was to give an overview of the current state of the field for astronomers who are not  experts in cosmological matters. I therefore gave a summary of the concordance model which I’ve blogged about before and then made some comments about things that might point to a more complete theory of the Universe. I also mentioned some of the anomalies in the cosmic microwave background that I’ve also blogged about on here.

I usually use this piece of Hieronymus Bosch The Last Judgement to illustrate my feelings about the concordance model:

 

 
The top part represents the concordance cosmology. It clearly features an eminent cosmologist surrounded by postdoctoral researchers. Everything appears to be in heavenly harmony, surrounded by a radiant glow of self-satisfaction. The trumpets represent various forms of exaggerated press coverage.

But if you step back from it, and get the whole thing in a proper perspective, you realise that there’s an awful lot going on underneath that’s not so pleasant or easy to interptet. I don’t know what’s going down below there although the unfortunate figures slaving away in miserable conditions and suffering unimaginable torments are obviously supposed to represent graduate students.

The main point is that the concordance model is based on rather strange foundations: nobody understands what the dark matter and dark energy are, for example. Even more fundamentally, the whole thing is based on a shotgun marriage between general relativity and quantum field theory which is doomed to fail somewhere along the line.

Far from being a final theory of the Universe I think we should treat our standard model as a working hypothesis and actively look for departures from it. I’m not at all against the model. As models go, it’s very successful. It’s a good one, but it’s still just a model.

That reminds me of the school report I got after my first year at the Royal Grammar School. The summary at the bottom described me as a “model student”. I was so thrilled I went and looked up the word model in a dictionary and found it said “a small imitation of the real thing.”

Anyway, the talk went down pretty well (I think) and after a quick glass of Guinness (which definitely went down well) I was back to Dublin airport and home to Cardiff soon after that: Cardiff airport to my house was less than twenty minutes. I greatly enjoyed my short visit and was delighted to be asked to do a couple of seminars back there in the near future.

I was in a  good mood when I got home, which got even better when I found out that I won the latest Crossword competition in the Times Literary Supplement. And the prize isn’t even a dictionary. It’s cash!