Archive for April, 2017

Lamentation over the Dead Christ – Sebastiano del Piombo 

Posted in Art with tags , , , on April 14, 2017 by telescoper

I came across this picture in this week’s Times Literary Supplement as part of an article describing an exhibition currently showing at the National Gallery in London. I thought I’d share it here because it’s such an extraordinarily powerful and mysterious image.

It was painted sometime around 1512-16 by Sebastiano del Piombo, a contemporary of Michelangelo. 

The Pietà (an image of the distraught Virgin Mary lamenting the death of her son, usually cradling his lifeless body) is a familiar subject in religious art, but this particular version is strikingly different.

For one thing, the Virgin Mary is not holding, or even looking at, the body of Christ. She seems instead  to be lost in prayer. 

For another, the figure of Mary towers over the corpse at her feet. Is it just me, or does she look rather masculine too? Assuming this is deliberate, are we seeing her somehow growing in stature, perhaps becoming divine herself?

It’s as if we catch her in the moment in which she is undergoing some form of transformation. In any case she’s not simply overcome with grief as in many depictions of this scene. What she is experiencing remains an enigma. This is not unusual for Renaissance art: paintings in particular often seem to contain secret messages.

The body of her son – brown and apparently without wounds – looks grotesquely stiff, incapable of being embraced. The background is a bleak landscape of ruined buildings and stunted trees, feebly lit by the distant moon.

It’s a stark, comfortless description of the dead Christ, but Mary embodies a sense of determination and hope. Above all, though, it’s a very dramatic painting. 

St John Passion 

Posted in Uncategorized on April 13, 2017 by telescoper

Last night I went to St David’s Hall in Cardiff for a performance of the St John Passion by the BBC National Orchestra of Wales and the BBC National Chorus of Wales under the direction of John Butt. The concert was broadcast live on BBC Radio 3, so you can listen to it for the next month on the BBC iplayer.

The St John Passion is on a smaller scale than Bach’s other (later) setting of the same story, the epic St Matthew Passion,  being almost an hour shorter and composed for a single orchestra and choir; the St Matthew Passion has two choirs and two orchestras. The St John Passion is nevertheless a very dramatic work, with many contrasts:  moments of intimacy expressed by solo voices lie in between grand chorales and orchestral interludes.

A few things struck me particularly in what was a very enjoyable concert. The first was the fine performance by tenor Gwilym Bowen as a rather boyish-looking but earnest Evangelist, a very demanding role. It’s interesting that the part of Jesus is so much more limited, though it was very well sung by David Soar (bass). Other solo vocalists were Elizabeth Watts (soprano),  William Towers (countertenor), Nick Pitched (tenor) and Ashley Riches (bass-baritone), as well as some members of the chorus.

The BBC National Chorus of Wales was in fine voice. Outnumbering the orchestra by a considerable margin they managed to generate a wonderful sonority without losing the ‘bite’ that this piece demands. This of all stories needs more than a pretty sound from the choir.

Another thing that struck me watching the orchestra was the phenomenal work of the principal bass, David Stark. He was constantly at work, adding the bottom notes to the accompaniment of the recitative as well as providing the foundation of the string section in the full orchestra. I hadn’t realised before quite how much the double bass had to do in this piece. I was close enough to see the density of ink on his score!

The orchestra for the St John Passion is relatively small but it’s used very cleverly by Bach. For example, there are several sections in which he uses two solo instruments whose melodic lines intertwine. Pairs of  flutes, oboes, cellos and violins all perform in this way at different times to wonderful effect. There is also a bassoon which, for this performance, was located among the strings rather than with the flutes and oboes.

With a piece like this it’s difficult not to reflect on the subject matter as well as the music. I’m not a religious man, but I don’t think you have to be a believer to appreciate that the power of the story of the Passion is its universality.  By that I mean that it demonstrates the capacity we humans have to inflict pain and suffering on each other. It also reminds us that one day we too will die. All we can hope is that it does not come in such an agonising way as it did for Jesus, but we all know it is going to happen. As Herodotus put it: “Call no man happy until he knows the manner of his death”.

I don’t believe that ultimate  hope for humanity lies in any kind of supernatural intervention, but that we have to make it on our own salvation in the here and now. That’s all there is. On the other hand, any species that could produce Johan Sebastian Bach can’t be entirely beyond redemption, can it?

 A Time of Death

Posted in Uncategorized on April 11, 2017 by telescoper

This image, courtesy of the Cardiff University Library, is of a pocket watch that belonged to the poet Edward Thomas.

It stopped at 24 minutes to eight on the morning of 9th April 1917, the precise moment when an artillery shell exploded, killing its owner. This happened in the first few hours of the Battle of Arras in the Pas-de-Calais area of Northern France.

In detective stories the stopped watch is a clumsy cliché often used to indicate the victim’s time of death, but in this case I find the image intensely powerful.

Despite heavy casualties the battle in which Edward Thomas fell went well at first for the British and Commonwealth Armies who made substantial territorial gains in the opening stages. Soon, however, the defending Germans regrouped and another bloody stalemate ensued that dragged on for another month, leaving about 300,000 casualties on both sides.

R.I.P. Gary Steigman 

Posted in Uncategorized on April 10, 2017 by telescoper


I was saddened today to hear from friends and colleagues of the death of Professor Gary Steigman (above).

Gary was a leading figure in the theory of cosmological nucleosynthesis, ie the formation of light elements by nuclear fusion reactions in the Big Bang. As well as being an eminent scientist he was also a warm, generous and extremely likeable human being. Our paths crossed only a few times, the last time being some years ago, but I remember him very well for his kindly and courteous manner. He’ll be greatly missed by a great many people.

Rest in peace, Gary Steigman.

An Image for Our Time

Posted in Uncategorized on April 9, 2017 by telescoper

This photograph has gone viral today, and I couldn’t resist sharing it here.

It was taken during a march by the fascist English Defence League in Birmingham yesterday. The young lady on the left is Saffiyah Khan, who was not part of the organised counter-demonstration but stepped forward when a group of EDL thugs surrounded another woman who was. The man on the right  threatened her with his fists and a policeman intervened in an attempt to defuse the situation.

 Ms Khan kept her hands in her pockets all the time, her smile conveying a sense of amused contempt that is truly an image for our times.

The man at the right in the picture is Ian Crossland, a leading figure in the EDL. He later wrote on Facebook that Ms Khan was “lucky she got any teeth left”.

By the way, here’s an excerpt from Mr Crossland’s Facebook page:


Saffiyah Khan is half Pakistani and half Bosnian, but I’d far rather live in a Britain made in her image than in his.

PhD Opportunities in Data-intensive Physics and Astrophysics!

Posted in Uncategorized on April 8, 2017 by telescoper

Well, I’m now officially on holiday for two weeks and probably won’t be blogging much during this break, especially about work-related things, but I couldn’t resist a quick announcement of something very exciting.

We received confirmation last week that the Science and Technology Facilities Council (STFC for short) to set up a Centre for Doctoral Training (CDT for short) involving the Universities of Cardiff, Bristol and Swansea. This will be coordinated by the Data Innovation Institute at Cardiff University and it covers  a wide range of data-intensive research in astrophysics and cosmology carried on at the three member institutions. ‘Data-intensive’ here means involving very big data sets, very sophisticated analysis methods or high-performance computing,  or any combination of these.

The Centre for Doctoral Training will be coordinated by the Data Innovation Institute at Cardiff University. It will commence in September 2017 so we will be open for applications immediately, ie. next week.

For further information, please see the Data Innovation Institute webpage which will be updated as more details are available.

By the way, for  this special programme, STFC have relaxed the  rules relating to  nationality, so full funding is potentially available for  non-UK citizens under this scheme.

If you’re looking to do a PhD in data-intensive physics or astrophysics, get writing your application now and keep an eye on this page for further announcements.

To secure a PhD place at this STFC CDT administered by the DII you’d better apply PDQ! 

The Irish Question 

Posted in Biographical with tags , , on April 7, 2017 by telescoper

Not surprisingly, given the imminent likelihood of big cuts to UK Astronomy funding as a result of our withdrawal from the European Union, quite a lot of the conversation at this evening’s RAS Club dinner revolved around ways of keeping EU citizenship in the post-BrExit era.

Through a bit of independent investigation I discovered a few weeks ago that, at least in principle, I qualify for Irish citizenship. This is because one of my grandparents (my grandfather on my mother’s side) was born in Northern Ireland. That is sufficient for me to claim Irish nationality, if I can prove it.

The problem is that the grandfather concerned died quite a long  time ago, when I was a kid. In fact, all my grandparents are deceased. To make matters worse I don’t know exactly when he was born or where or when he married my grandmother. This is a problem because I need to produce both his birth certificate and their marriage certificate, along with my mother’s birth certificate (and mine) to establish my case.

It is almost certain my grandfather was born before Ireland was partitioned in 1921, so his birth records may not even be in Northern Ireland but could be held in Dublin.

It looks like I have some interesting research to be getting on with!

A Cheeky Monkey

Posted in Uncategorized on April 6, 2017 by telescoper

No time for a post today, I’m afraid, so here’s a photograph of a Spectacled Monkey.. 

Going NUTs

Posted in The Universe and Stuff, Uncategorized with tags , , , on April 5, 2017 by telescoper

If you’ve studied General Relativity the chances are that you’ve come across the Taub-NUT exact solution discussed in this post. It’s generally regarded as something of an oddity in that it’s a bit contrived, but provides a counter-example to some well-known results. For example, in the context of a Black Hole solution, it violates the No Hair Theorem (by violating the assumption of asymptotic flatness).

When I saw this post at CQG, however, I was reminded of a paper published a few years ago discussing this in a cosmological context, where it can be seen as a special case of the Bianchi IX geometry.

CQG+

By Paul I. Jefremov and Volker Perlick.


Among all known solutions to Einstein’s vacuum field equation the (Taub-)NUT metric isa particularly intriguing one. It is that metric that owing to its counter-intuitive features was once called by Charles Misner “a counter-example to almost anything”. In what follows we give a brief introduction to the NUT black holes, discuss what makes them interesting for a researcher and speculate on how they could be detected should they exist in nature.

paul jefremov-and-volker Volker Perlick and Pavel (Paul) Ionovič Jefremov from the Gravitational Theory group at the University of Bremen in Germany. Volker is a Privatdozent and his research interests are in classical relativity, (standard and non-standard) electrodynamics and Finsler geometry. He is an amateur astronomer and plays the piano with great enthusiasm and poor skills. Paul got his diploma in Physics at the National Research Nuclear University MEPhI in Moscow, 2014. Now he…

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The Word, by R.S. Thomas

Posted in Poetry with tags , , , on April 5, 2017 by telescoper

A pen appeared, and the god said:
‘Write what it is to be
man.’ And my hand hovered
long over the bare page.

until there, like footprints
of the lost traveller, letters
took shape on the page’s
blankness, and I spelled out
the word ‘lonely’.

And my hand moved
to erase it; but the voices
of all those waiting at life’s
window cried out loud: ‘It is true.’

by R.S. Thomas (1913-2000)