John McLaughlin & The Fourth Dimension

Posted in Jazz with tags , , , , , on May 27, 2022 by telescoper
John McLaughlin last night (Picture Credit National Concert Hall)

Last night I went to the National Concert Hall in Dublin for a superb gig by guitarist John McLaughlin with his band The Fourth Dimension. This was the first time I’d seen him live though I have known some of his music on disc, especially two albums he made with Miles Davis in the late Sixties, Bitches Brew and In A Silent Way. Since then John McLaughlin has been consistently regarded as one of the best jazz guitarists ever. He is now eighty years old but apart from the fact that his hair is white you would never guess that. He looks as fit as a fiddle, and last the band played for over 90 minutes without a break.

John McLaughlin (who was born in Doncaster but who referred to Ireland as “the land of my ancestors”) is currently on a European tour and he began his concert last night with a heartfelt expression of his gratitude for being able to perform in person with his band after a gap of over two years. This period has been particularly difficult for Jazz musicians who depend so much on mutual interaction when performing. The first number they played was called Lockdown Blues

The band The 4th Dimension brings together excellent musicians from different cultures and musical traditions, integrating their all cultural influences in a unique way while at the same time preserving the spontaneity of jazz. The result is hard to classify – there’s definitely more than an echo of McLaughlin’s earlier musical work in jazz/rock fusion, but with diverse elements of world music thrown in. His own musical style is instantly recognizable to anyone who has heard music from his back catalogue, but subtly altered to suit his current band.

Gary Husband (right in the picture), who is from the UK, played keyboards (and drums on a couple of numbers). Ranjit Barot – Indian by birth and living in Mumbai – was the main drummer (sometimes playing together with Husband, hence the two kits in the picture); he also made various vocal contributions. On electric bass (left) was the extraordinarily virtuosic Étienne M’Bappé who is of Senegalese origins. The band played collectively but also in various combinations with and without McLaughlin, who tended to move around the stage generally encouraging and directing the traffic.

It was a fantastic gig with a wide range of musical influences being evidence. I noticed two pieces made famous by Pharaoh Sanders – The Creator has a Master Plan and The Light at the Edge of the World – but there were also numerous references to McLaughlin’s work with Indian musicians.

It was a very enjoyable performance that generated a huge response from the audience. The NCH wasn’t quite full, but it was a good crowd. I think I was in danger of forgetting how much I enjoy watching musicians as well as listening to their music.

So after a break since February 2020 I’ve finally resumed concert-going. It’s not only the musicians who have missed live music! As a matter of fact I’ll be back at the National Concert Hall this very evening after the final day of ITP2022, for a very different concert…

Fuzzy Cosmology at ITP2022

Posted in Biographical, Talks and Reviews, The Universe and Stuff with tags , , , on May 26, 2022 by telescoper

As I usually do when I give a talk (which hasn’t been for a while) I’ve uploaded the slides for the presentation I gave at the Irish Theoretical Physics meeting at DIAS this morning. The title of the talk was Fuzzy Cosmology and the abstract reads:

I discuss some applications of the Schrodinger-Poisson wave-mechanical approach to
cosmological structure formation. The most obvious use of this formalism is to “fuzzy” dark matter,
i.e. dark matter consisting of extremely light particles whose effective de Broglie wavelength is
sufficiently large to be astrophysically relevant, but it can be used to model more general scenarios
and has a number of advantages over standard methods based on Eulerian perturbation theory. I
illustrate the formalism with some calculations for cosmic voids and discuss its application to the
cosmological reconstruction problem(s).

I think it went reasonably well despite there being a hitch at the start because the touchpad on my laptop stopped working. Fortunately I was able to produce an emergency mouse. Anyway, here is a picture of me taken during the talk to prove I was there..

Gravity Competition!

Posted in The Universe and Stuff with tags , , , on May 26, 2022 by telescoper

There’s a competition running at ITP2022 that involves holding out a copy of the book Gravitation by Misner Thorne & Wheeler in one hand at arm’s length for as long as you can following the instructions below:

The current record is an impressive three minutes! How well can you do?

UPDATE: The winner of the competition was John Brennan, formerly of Maynooth University, with a time of 3 minutes and 29 seconds!

ITP 2022

Posted in Biographical, Maynooth with tags , , on May 25, 2022 by telescoper

Just a quick note to say I’ve spent today not only out of the office but out of Maynooth at the first conference I’ve attended since before the pandemic started. The Irish Theoretical Physics Meeting (ITP22) is taking place from today (Wednesday 25th) to Friday 27th at the Dublin Institute for Advanced Studies. I’ll be commuting from Maynooth for the rest of this week. There is quite a big contingent from the Department of Theoretical Physics at Maynooth in fact.

My talk isn’t until tomorrow morning but I chaired one of the sessions this afternoon. It’s an interesting meeting with an eclectic mixture of talks and lots of time for the sort of face-to-face discussion we’ve all missed for so long. If that weren’t enough it’s also a nice change from marking examinations…!

Maynooth University Library Cat Update

Posted in Biographical, Maynooth with tags on May 24, 2022 by telescoper
Picture Credit: Joost Slingerland

I’ve been at home today, doing the last of my examination marking, doing some Open Journal business, and preparing a presentation for later this week so I’m indebted to my colleague Dr Joost Slingerland for the above picture of Maynooth University Library Cat.

I’ve seen him quite a few times recently, as I’ve been on South Campus to collect exam scripts etc, and he seems in fine feline fettle. In the picture he looks like he’s guarding his Library from unwelcome visitors.

Soon the exams will be over and the campus will be relatively quiet again, though no doubt he will continue to be kept well provisioned and not short of company when he wants some.

The Death of the Hubble Parameter

Posted in Biographical, The Universe and Stuff with tags on May 23, 2022 by telescoper

It’s been a very busy day so in lieu of a proper post I thought I’d recycle an old joke with a new picture I took on my way to collect some examination scripts earlier today for marking.

I’m sad to have to use the medium of this blog to report the tragic death of the Hubble parameter. It had been declining for some time and, despite appearing to pick up recently, the end was somewhat inevitable. Condolences to the other parameters, especially Ω (who was in a close relationship with H), on this sad loss.

An older version of this joke, posted 11 years ago, can be found here.

Premiership Final Marks

Posted in Education, Football with tags , on May 22, 2022 by telescoper

Time for a quick reaction to an exciting final day of the Premiership season.

There were 20 candidates, no absences, and no extenuating circumstances recorded. The final marks are all in and we can now proceed to the classification of honours:

Looking at the last column we can see that the top four all get first-class honours, with Man City (top of the class) and Liverpool in line for prizes. Arsenal may also end up with a 1st, possibly depending on the result of a viva and consultation with the external examiner.

Among the others, Man Utd will be disappointed with their 2.2. By contrast Brighton will be delighted to have scraped theirs.

Newcastle in 11th only get a 3rd but they did at one point look like failing so will be relieved; they might also be bumped up to a 2.2 after a viva or if there are extenuating circumstances. There is a long tail of poor marks near the bottom: Norwich, Watford and Burnley all drop out but may return to resit at some stage.

(I think may have been spending too long recently marking examinations…)

From Labour to Labor

Posted in Crosswords, History, Politics with tags , , , , , , , , on May 22, 2022 by telescoper

I don’t know very much about Australian politics but I was delighted yesterday to hear news of Rupert Murdoch’s defeat in the Federal elections. The losing leader of the illiberal party, and previous PM, Scott Morrison, has now resigned. I’ve got nothing against Mr Morrison’s family, but I’m glad he’s going to be spending more time with them.

One thing that confused me is that the victorious Australian Labor Party is the spelling of the word “Labor”. I think Australians use the English spelling “labour” for the noun or verb so why the political party uses a different spelling for the political party is unclear to me. It is however just a name, and we all know that a rose by any other name would smell as sweet.

Some people refer to “labor” as the American spelling but it’s not as simple as that. The English word “labour” is derived from the 3rd declension Latin noun labor/laboris from which in turn is derived the verb laborare. The same sort of Latin origin is the case for many other familiar words: honor, color, valor, humor, vapor, rigor, and so on. All these were original Latin nouns that came into English via Norman French in the course of which they acquired the “u”.

The person responsible for the spelling of these words in American English (ie “labor” etc) was Noah Webster who thought English spelling was unnecessarily complicated and reverted to the Latin in these cases. It was also he who turned “centre” into “center”, for example. This spelling was introduced in his famous dictionary, first published in 1828, and subsequently acquired by the G&C Merriam Co and still in circulation nowadays after many revisions as the Merriam-Webster Dictionary.

Anyway, my point is that the English often look down on such spellings as “labour” and “colour” as vulgar Americanism but these are the “original” (unfrenchified) spellings.

It’s interesting that Norman French words sometimes displaced Old English words entirely but sometimes the Old English form survives as synonym. For example, the Old English word for “colour” is “hew” which survives as the English “hue”. The Old English word for “labour” is “swink” which has completely disappeared from common usage (though it is listed in the One True Chambers Dictionary with the description archaic).

All of which nonsense gives me an excuse to mention that I managed to get an HC (“Highly Commended”) for my clue in Azed Competition No. 2603 which I thought was a very tough puzzle to complete, which is no doubt why there were only 117 entries!

Job Opportunity in Theoretical Physics at Maynooth!

Posted in Maynooth, The Universe and Stuff on May 21, 2022 by telescoper

Just a very quick reblog of this post because the deadline is tomorrow (22nd May) at 23.30. It’s a for a Lecturer (Assistant Professor) in Theoretical Quantum Physics, interpreted broadly to include quantum computation, quantum information theory, quantum many-body systems, quantum field theory, and applications thereof to condensed matter and high-energy physics, etc.

telescoper's avatarIn the Dark

Just a short post passing on the information that we have a permanent Lectureship (Assistant Professorship) available in the Department of Theoretical Physics at Maynooth University. You can find the details, including a full Job Description and salary, here.

For the purposes of this position we interpret Quantum Physics broadly to include quantum computation, quantum information theory, quantum many-body systems, quantum field theory, and applications thereof to condensed matter and high-energy physics, etc.

This position is the first of several to be advertised across the Departments of Theoretical & Experimental Physics at Maynooth University, in areas including Astronomy and Earth Science, on top of this opportunity at Professorial level in Observational Astrophysics or Cosmology. Watch this space for more details!

The position is available from 1st September 2022 and the deadline for applications is 23.30 on Sunday 22nd May 2022 and you should apply through the Maynooth jobs…

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Science vs Marketing

Posted in Astrohype, Education, Science Politics, The Universe and Stuff with tags , , , on May 20, 2022 by telescoper

I saw a paper some months ago by former Sussex colleague Xavier Calmet and collaborators that attracted quite a lot of press coverage largely based on a press release from the University of Sussex that claimed:

Stephen Hawking’s famous black hole paradox solved after hair-raising discovery

(If you want to learn more about the black hole information paradox you could start here.)

The press release is pure unadulterated hype. The paper in Physical Review Letters is actually rather good in my opinion but it says next to nothing about the black hole information paradox. Unfortunately the Sussex press release was picked up by the BBC’s science editor Pallab Ghosh who turned it into a very garbled article. Unfortunately Ghosh has quite a lot of form when it comes to producing nonsensical takes on science results. See, for example, this piece claiming that recent results from the Dark Energy Survey cast doubt on Einstein’s general theory of relativity when they do nothing of the sort.

Fortunately in the case of the black hole paper David Whitehouse has done a good job at demolishing the “BBC’s black hole baloney” here so I don’t need to repeat the arguments.

What I will mention however is that there is an increasing tendency for university press offices to see themselves entirely as marketing agencies instead of informing and/or educating the public. Press releases about scientific research nowadays rarely make any attempt at accuracy – they are just designed to get the institution concerned into the headlines. In other words, research is just a marketing tool.

This isn’t the only aspect of the marketisation of universities. If an academic tries to organize a public engagement event or do some schools outreach activity, the chances are their institution will hijack it and turn it into a marketing exercise, aimed exclusively at student recruitment. Universities are increasingly unconcerned with education and research and obsessed with income.

Forget the phony controversies about woke politics and free speech manufactured by right-wing press. The real culture war in modern universities is between those who believe in the intrinsic value of higher education and those who see it simply as a means of generating profit by whatever means possible. As in any war, truth is the first casualty.