Archive for March, 2024

Wolf Hall by Hilary Mantel

Posted in History, Literature, Uncategorized with tags , , , , , , , on March 31, 2024 by telescoper

Still trying to use the spare time during my sabbatical to catch up on long-neglected reading, this Easter weekend – helped by the rainy weather – I finished Wolf Hall by Hilary Mantel, the first of her novels that I’ve read. This “historical novel” won the Booker Prize in 2009 and I understand was made into a play and a TV series, neither of which I have seen.

The novel is set in Tudor England in the reign of Henry VIII and revolves around Thomas Cromwell, who rose from lowly beginnings in Putney to be one of the powerful men in the country. Cromwell gets a surprisingly sympathetic treatment, at odds with most of the historical record which treats him largely as a cruel and unscrupulous character, undoubtedly clever but given to threats and torture if appeals to reason failed. From a 21st century perspective, it’s hard to find redeeming features in Cromwell. Or anyone else in this story, to be honest.

The historical events of the period covered by the book are dominated by Henry’s attempts to have his marriage of 24 years to Catherine of Aragon annulled so he could marry Anne Boleyn, along the way having himself declared the Supreme Governor of the Church in England, causing a split with Rome. Henry does marry Anne, and she bears him a daughter, destined to become Elizabeth I, though her second pregnancy ends in a miscarriage. The book ends in 1535 just after the execution of Thomas More, beheaded for refusing to swear the Oath of Supremacy.

(More was portrayed sympathetically in the play and film A Man For All Seasons though he was much disposed to persecution of alleged heretics, many of whom he caused to be burned at the stake for such terrible crimes as distributing copies of the Bible printed in English. Significant chunks of the penultimate chapter are lifted from the script of A Man For All Seasons but given a very different spin.)

Henry VIII is also portrayed in a somewhat flattering light; Anne Boleyn rather less so. Mary Tudor, Henry’s eldest daughter by Catherine of Aragon, cuts an unsurprisingly forlorn and intransigent. There are also significant appearances from other figures familiar from schoolboy history: Hugh Latimer, Cardinal Wolsey, and Thomas Cranmer; as well as those whose story is not often told, such as Mary Boleyn (Anne’s older sister). I have a feeling that Hilary Mantel was being deliberately courting controversy with her heterodox approach to characterization. She probably succeeded, as many professional historians are on record as hating Wolf Hall as much of it is of questionable accuracy and some is outright fiction.

Incidentally, one of the most negative reactions to this book that I’ve seen is from Eamon Duffy who is on record as detesting the historical figure of Thomas Cromwell and was “mystified by his makeover in Hilary Mantel’s Wolf Hall from a thuggish ruthless commoner to a thoughtful sensitive figure”. I mention this particularly because Eamon Duffy, an ecclesiastical historian, was my tutor when I was an undergraduate at Magdalene College, Cambridge.

On the other hand, Wolf Hall not meant to be a work of scholarly history: it is a novel and I think you have to judge it by the standards of whether it succeeds as a work of fiction. I would say that it does. Although rather long-winded in places – it’s about 640 pages long – it is vividly written and does bring this period to life with colour and energy, and a great deal of humour, while not shying away from the brutality of the time; the execution scenes are unflinchingly gruesome. The book may not be accurate in terms of actual history, but it certainly creates a credible alternative vision of the time.

It’s interesting that the title of this book is Wolf Hall when that particular place – the seat of the Seymour family – hardly figures in the book. However, one character does make a few appearances, Jane Seymour, who just a year after the ending of this book would become the third wife of Henry VIII. It also happened that Thomas Cromwell’s son, Gregory, married Jane’s sister, Elizabeth. I suppose I will have to read the next book in the trilogy, Bring Up The Bodies, to hear Mantel’s version of those events…

A week is a long time…

Posted in Politics with tags , , , , , , on March 30, 2024 by telescoper

“A week is a long time in politics” is a quotation usually ascribed to Harold Wilson, although there’s no record of him ever having said it; it has nevertheless turned out to be true for the island of Ireland.

I have been thinking about writing about the sudden resignation of Leo Varadkar from the office of Taoiseach just ten days ago, and his impending replacement by Simon Harris (the current Minister for Further and Higher Education, Research, Innovation and Science), but I’ve been too busy and thought I’d wait until the holiday weekend to write something.

(To be honest I didn’t have any great insights to offer, so it’s perhaps just as well that I didn’t attempt any kind of in-depth analysis, not that lack of insight prevents media pundits from having a go. I’ll just say that Harris is an energetic tinkerer who is good at doing superficial – and sometimes positive – things to attract headlines, and is clearly enormously ambitious, but I don’t think he’ll offer any significant change of direction. The biggest issue in Ireland right now is the housing shortage, and in his address to Fine Gael members (given here in full) he didn’t mention the housing crisis or rising homelessness once. We can assume that more inaction is in store as the governing coalition limps on towards the next General Election, that must take place within the next year.)

I also found it amusing how many columnists wrote, after the fact, that they had Varadkar’s resignation coming although they were all far too brave to say so ahead of the event.

Anyway, the events of yesterday turned out to be even more surprising – not to say shocking – than Varadkar’s departure. Jeffrey Donaldson MP, Leader of the Democratic Unionist Party (DUP) resigned yesterday. Nobody knows for sure why Leo Varadkar resigned (except the man himself; my best guess is that he just got bored with the job) but the reason for Donaldson’s resignation is well known: he has been charged with sexual offences, including rape. Since his case is now in the hands of the criminal justice system, further comment or speculation about the charges would be highly inappropriate. Whatever you think of Jeffrey Donaldson’s character or politics – and I don’t think very much – he is, like everyone else, entitled to a fair trial. Just as importantly, if he has committed crimes it is important not to say or do anything that may be construed as prefudicial and might prevent a conviction.

This matter is alarming however because the Northern Ireland Assembly has just returned to Stormont after a two-year hiatus. Although Donaldson was largely responsible for its suspension, he was also largely responsible for its return. A sizeable fraction of the DUP were, and presumably still are, opposed to the agreement that led to reinstatement of power sharing and there is a real danger that the Assembly will collapse again. Fortunately, both sides seem to realize what a disaster that would be for the people of Northern Ireland, but that doesn’t guarantee that another crisis can be averted.

“May you live in interesting times” is another frequently misattributed quotation, but it seems we’re in them anyway.

Good Friday – Edwin Morgan

Posted in Poetry with tags , , on March 29, 2024 by telescoper

by Edwin Morgan (1920-2010)

Jueves Santo

Posted in Barcelona with tags , , , on March 28, 2024 by telescoper

Today, Jueves Santo (Holy Thursday, aka Maundy Thursday), is a public holiday in many parts of Spain but not here in Catalonia, where all the shops have been open. I mentioned that Barcelona is not the most religious city in Spain and this is another demonstration of that. I am glad the shops were open because I used the occasion to stock up for the approaching long weekend.

Nice weather having resumed, the tourist areas of Barcelona were extremely busy today. I’m not sure what the Spanish or Catalan words are for Chuggers but they were out in force. One guy stepped right in front of me and I couldn’t avoid bumping into him. As someone who is often very nervous in large crowds I find this sort of thing very irritating. I gave him an earful (in English) and walked on. I still don’t know what he was plugging.

Like everywhere I’ve stayed during this sabbatical, the apartment I’m on is equipped with a Nespresso machine. This one, however, is different from the usual type and takes larger capsules like those shown above. While you can get standard Nespresso pods in supermarkets and other stores, these funny hemispherical pods have to be purchased in a Nespresso shop. There are plenty of these shops around – there’s one just over the street from my apartment – but it’s quite hard work just buying the capsules at them. You can’t just pick up a box of capsules and take it to a till: you have to queue to see one of the assistants who will try to sell you some sort of subscription. On the other hand, they also offer you a coffee to taste if you don’t know which of the myriad types you want. You can also recycle used capsules there. Anyway, despite my broken Spanish, I did succeed in buying what I wanted and will be sufficiently caffinated for the next few weeks.

P.S. As well as the ceremonial purchase of coffee, one of the other rites performed on Jueves Santo is the Lavatorio de Pies which means “the washing of the feet” and has nothing to do with lavatories or pies.

That Exciting New Black Hole Picture!

Posted in Uncategorized with tags , , , , on March 27, 2024 by telescoper

At a press conference earlier today, scientists from the Event Horizon Telescope revealed an exciting new picture of the environs of Sgr A* the black hole at the centre of the Milky Way that shows structures associated with a powerful magnetic field:

You can see immediately the enormous advantage of using a paintbrush (left) rather than a crayon (right) to make such images. For more details, see the press release here or the two papers about this work, here and here.

R.I.P. Peter Clegg

Posted in R.I.P. with tags , , on March 27, 2024 by telescoper

It is my sad duty to pass on the news that Professor Peter Clegg, formerly of Queen Mary University of London, passed away last Friday, 22nd March 2024.

Peter Clegg was an expert in observational and instrumental aspects of infrared astronomy. He was in the School of Physics at Queen Mary when I was in the School of Mathematical Sciences and I got to know him through the MSc in Astronomy that the two Schools delivered jointly, and latterly through the RAS Club. He was well known to colleagues in the Astronomy Instrumentation Group at Cardiff, many of whom worked for some time at Queen Mary.

I understand that Peter had been ill for some months, and that he passed away peacefully in his sleep. The funeral is to be on 12th April. Please contact me privately for details if you knew Peter and would like to attend.

L’aigua no cau del cel

Posted in Barcelona, Biographical with tags , , on March 26, 2024 by telescoper

It has rained more in the past 24 hours in Barcelona than it did in the three months I spent here before Christmas. In fact it rained so hard last night that it woke me up. More precipitation is forecast in the next few days too, but it will take a lot more than a few days of rain to fill up the empty reservoirs. The drought emergency is still a thing and water restrictions are still in force.

I’m doing my bit for the situation by only drinking wine.

On Papers Written Using Large Language Models

Posted in Uncategorized with tags , , , , , , , on March 26, 2024 by telescoper

There’s an interesting preprint on arXiv by Andrew Gray entitled ChatGPT “contamination”: estimating the prevalence of LLMs in the scholarly literature that tries to estimate how many research articles there are out there that have been written with the help of Large Language Models (LLMs) such as ChatGPT. The abstract of the paper is:

The use of ChatGPT and similar Large Language Model (LLM) tools in scholarly communication and academic publishing has been widely discussed since they became easily accessible to a general audience in late 2022. This study uses keywords known to be disproportionately present in LLM-generated text to provide an overall estimate for the prevalence of LLM-assisted writing in the scholarly literature. For the publishing year 2023, it is found that several of those keywords show a distinctive and disproportionate increase in their prevalence, individually and in combination. It is estimated that at least 60,000 papers (slightly over 1% of all articles) were LLM-assisted, though this number could be extended and refined by analysis of other characteristics of the papers or by identification of further indicative keywords.

Andrew Gray, arXiv:2403.16887

The method employed to make the estimate involves identifying certain words that LLMs seem to love, of which usage has increased substantially since last year. For example, twice as many papers call something “intricate” nowadays compared to the past; there are also increases in the use of the words “commendable” and “meticulous”.

I found this a commendable paper, which is both meticulous and intricate. I encourage you to read it.

P.S. I did not use ChatGPT to write this blog post.

Euclid on Ice

Posted in Euclid, The Universe and Stuff with tags , , , , , , on March 25, 2024 by telescoper

I thought it would be appropriate to add a little update about the European Space Agency’s Euclid mission. I’ll keep it brief here because you can read the full story on the official website here.

You may have seen in the news that the Euclid telescope has been having an issue with ice forming on surfaces in its optical systems, especially the VIS instrument. This is a common problem with telescopes in space, but the extent of it is not something that can be predicted very accurately in advance so a detailed strategy for dealing with it had to be developed on the go.

The layers of ice that form are very thin – just tens of nanometres thick – but that is enough to blur the images and also reduce the throughput of the instruments. Given that the objects we want Euclid to see are faint, and we need very sharp images then this is an issue that must be dealt with.

Soon after launch, the telescope was heated up for a while in order to evaporate as much ice as possible, but it was not known how quickly the ice would return and to what parts of the optical system. After months in the cold of space the instrument scientists now understand the behaviour of the pesky ice a lot better, and have devised a strategy for dealing with it.

The approach is fairly simple in principle: heat the affected instruments up every now and again, and then let them cool down again so they operate; repeat as necessary as ice forms again. This involves an interruption in observations, it is known to work pretty well, but exactly how frequently this de-icing cycle should be implemented and what parts of the optical system require this treatment are questions that need to be answered in practical experimentation. The hope is that after a number of operations of this kind, the amount of ice returning each time will gradually reduce. I am not an expert in these things but I gather from colleagues that the signs are encouraging.

For more details, see here.

UPDATE: The latest news is that the de-icing procedure has worked better than expected! There’s even a video about the result of the process here:

Diumenge de Rams

Posted in Barcelona, Biographical with tags , , , on March 24, 2024 by telescoper

Walking about yesterday I noticed that, not far from my apartment, on the Rambla de Catalunya, there was a street market offering a variety of curious merch. I was a bit confused until I realized that today is Palm Sunday, which is Domingo de Ramos in Spanish or Diumenge de Rams in Catalan; both mean “Sunday of Branches”. The long branches, some festooned with sweets and/or ribbons, are meant to be held by boys, while girls carry the smaller stems with intricate woven crosses. There is a procession called La Borriquita (“The Little Donkey”) which goes around the town today. It involves a statue rather than a real donkey, in case you were wondering.

Palm Sunday marks the start of Holy Week (Semana Santa), leading up to Easter Sunday, which lies on March 31st this year. There are no lectures for students next week at the University of Barcelona, though I believe the Faculty of Physics will remain open up to Thursday; Good Friday (Viernes Santa) is a public holiday, as is Monday. I think these holidays are more strictly observed here than in Ireland; most stores are closed on Sundays anyway, and this will be even more the case on Easter Sunday. Having said that, Barcelona is by no means the most religious Spanish city. I have been in Spain at Easter a few times before, and the ceremonies vary considerably from place to place, some sombre and some celebratory.

In practical terms this all means that I have to remember to get some serious shopping in on Thursday. Although stores will be open on Saturday, I think they will be very busy!