While I’m in reblogging mood I’ll try to send some traffic the way of this post, which is somewhat related to Friday’s one about the Wigglezeddy survey (or whatever it’s called)…
via astrobites
While I’m in reblogging mood I’ll try to send some traffic the way of this post, which is somewhat related to Friday’s one about the Wigglezeddy survey (or whatever it’s called)…
via astrobites
Well, I guess the Rapture didn’t come after all. Or maybe it did and I’m unsurprisingly not among the chosen few to be saved? I studiously avoided try to make fun of the whole thing, despite the fact that yesterday everyone seemed to be posting rapture jokes like there was no tomorrow.
Anyway, for those who were disappointed by the poor turnout for the Apocalypse here is another poem by R.S. Thomas; this one is called called Judgment Day…
Yes, that’s how I was,
I know that face,
That bony figure
Without grace
Of flesh or limb;
In health happy,
Careless of the claim
Of the world’s sick
Or the world’s poor;
In pain craven –
Lord breathe once more
On that sad mirror
Let me be lost
In mist for ever
Rather than own
Such bleak reflections,
Let me go back
On my two knees
Slowly to undo
The knot of life
That was tied there.
A “Mr Smith” from Portugal drew my attention to this post. I’ve posted from time to time about my scepticism about bibliometricism and this piece suggests some radical alternatives to the way citations are handled. I’m not sure I agree with it, but it’s well worth reading.
It’s been a long time since I posted an opera review. That’s because neither of the operas offered by Welsh National Opera earlier this year appealed to me very much and since then I’ve been too busy doing other things to take in an opera anywhere else. However, the summer season of WNO has now started so now at last there’s something of an operatic nature to write about. In fact, I was lucky enough to get tickets for the first night of WNO’s new production of Così fan tutte by Wolfgang Amadeus Mozart and duly went along yesterday evening. The Millennium Centre was pretty full – as you’d expect for a first night of an enduringly popular opera.
In case you weren’t aware, Così fan tutte is a masterpiece of comic opera (or, technically speaking, opera buffa) written in collaboration with Lorenzo da Ponte who also wrote the libretti for Don Giovanni and The Marriage of Figaro. The title can be loosely translated as “That’s how all women behave”; the -e on “tutte” indicates a feminine plural. The plot -such as it is – revolves around two pays of lovers: Guglielmo, who is engaged to Fiordiligi, and Ferrando, who is engaged to Fiordiligi’s sister, Dorabella. Both Guglielmo and Ferrando are sailors. All four are friends with the scheming Don Alfonso, who orchestrates the unfolding events, presumably for his own amusement.
Don Alfonso suggests to Ferrando and Guglielmo that their beloved fiancées are not as faithful as they seem to imagine and the three agree a wager. Ferrando and Guglielmo pretend that they’ve been called up for active service. Don Alfonso joins Fiordiligi and Dorabella in the sumptuous trio Soave sia il vento as the men appear to sail off for battle. The ladies are heartbroken and pledge fidelity to their departed lovers. However, the two sailors soon return in disguise in order to attempt their seduction. After various goings-on the men succeed in seducing each others fiancees and a mock wedding is staged. The marriage is interrupted by the sound of the sailors’ return. After the quickest of quick changes the two men re-appear without their disguises and confront their unfaithful women. Don Alfonso has won his bet.
Like all opera buffa the plot sounds faintly ridiculous – which it is – but of course the key to its success as a piece is not just the comic action, but also the gorgeous music which carries it along. In this particular opera there’s almost no end to the musical loveliness as Mozart has each principal singing alone, and in combinations of twos and threes. Mozart’s writing for two, three or four voices is truly wonderful to listen to, and there are many fine examples of such in this opera.
In this production Guglielmo and Ferrando are sailors who are stationed in a British seaside resort, complete with promenade, pier, Punch & Judy show and Italian ice-cream parlour (named Botticelli‘s). This setting takes it quite a long way downmarket compared to the original location of Naples, especially when the Butlins-style redcoats appear, and this is carried through to the much coarser way the comedy is handled than you find in many productions of this piece. This approach does provide enjoyable moments of slapstick hilarity but also causes some difficulties.
For example, it is key to this opera that the character of Don Alfonso has to have some sort of power over the four main protagonists. In other words, it has to be credible that they believe what he says and go along with his suggestions. In this production, however, Don Alfonso is meant to be a “local pier entertainer” – in fact he actually looks more like Flash Harry. I found it hard to accept that anyone would believe anything that this particularly dodgy spiv had to say, and his interaction with the two ladies in particular lacked all credibility.
Another thing I didn’t like was the way the opening of the piece was handled. Like most of Mozart’s operas, Così fan tutte is blessed with a splendid overture, perhaps not as brilliant the other Da Ponte operas but full of playful exuberance and very much worth listening to. You can call me old-fashioned, but I do like to hear the overture, preferably with an empty stage or with the curtain down. In this production, however, as soon as the overture started, the stage began to fill with various extras doing various (admittedly comic) things. A particularly funny sequence of people walking dogs backwards and forwards got a huge laugh, but which drowned out the music entirely. What a waste.
I suppose the overall point I’m trying to make is that this production tried too hard to get cheap laughs. It’s just not necessary to milk it like that – it’s funny enough anyway!
However, these are relatively small objections. I’ll temper them by adding that some of the comedy in this production is inspired. Ferrando wore a false nose that made him look like Barry Manilow and Guglielmo’s false moustache gave him the appearance of Comrade Stalin. The latter looked particularly louche in white tennis shorts and ghastly red blazer.
Neal Davies (baritone) was Don Alfonso, amusingly played but lacking the deep sonority in his voice really needed to carry the role off. Ferrando was played by Robin Tritschler (tenor), whose light agile voice is ideal. Gary Griffiths (baritone) as Guglielmo was outstanding, with an excellent voice and obvious flair for the comic touches. Fiordiligi (Camilla Roberts) and Dorabella (Helen Lepalaan) were also good. Despina – a waitress in Botticelli’s ice-cream parlour and Don Alfonso’s accomplice (often in disguise) – was pert and feisty but her voice lacked projection; at times she was barely audible.
Anyway, in view of the fact that the comedy dog-walking interfered with last night’s overture I thought I’d end by posting a version here. I love the way that little phrase is thrown around among the wind instruments!
From time to time on this blog I post rants about the state of scientific publishing, open access, the importance of the arXiv for astronomy and cosmology, and so on.
This morning, however, I discovered an “alternative” side to the whole business of online science, a site by the name of viXra. Most readers will probably be familiar with this site already – many no doubt publish there, in fact – but I have to say that it’s completely new to me. I urge you to check it out.
The structure and layout of viXra is almost identical to the arXiv, but the content is a bit … er … different. Naturally, I went straight for the section that mirrors astro-ph on the arXiv. The viXra version of astro-ph so far contains only 88 publications, but among them are papers of such outstanding quality that I’m sure this remarkable collection will grow very quickly when like-minded authors around the world find out about it.
I thought I’d post my favourite as an example. Initially, I was going to go with one entitled Ball Lightning, Micro Comets, Sprite-Fireballs and X-Ray/gamma Flashes According to Quantum FFF Theory, with the abstract
FUNCTION FOLLOWS FORM in Quantum FFF THEORY. The FORM and MICROSTRUCTURE of elementary particles, is supposed to be the origin of FUNCTIONAL differences between Higgs- Graviton- Photon- and Fermion particles. As a consequence, a NEW splitting, accelerating and pairing MASSLESS BLACK HOLE, able to convert vacuum energy (ZPE) into real energy by entropy decrease, seems to be able to explain quick Galaxy- and Star formation, down to Sunspots, (Micro) Comets, Lightning bolts, Sprite Fireballs and Ball Lightning.
I decided against this one, however, because of the tendency to burst inexplicably into upper case every now and again, which I found rather alarming.
I was also forced to reject this one, The Structuring Force of the Natural World, on the grounds that (a) it’s in Chinese so I can’t read it and (b) I don’t know what a “basket graph” is. Otherwise I’m sure its a splendid piece of work.
The assumption that the mass distribution of spiral galaxies is rational was suggested 11 years ago. The rationality means that on any spiral galaxy disk plane there exists a special net of orthogonal curves. The ratio of mass density at one side of a curve (from the net) to the one at the other side is constant along the curve. Such curve is called a proportion curve. Such net of curves is called an orthogonal net of proportion curves. I also suggested that the arms and rings are the disturbance to the rational structure. To achieve the minimal disturbance, the disturbing waves trace the orthogonal or non-orthogonal proportion curves. I proved 6 years ago that exponential disks and dual-handle structures are rational. Recently, I have also proved that rational structure satisfies a cubic algebraic equation. Based on these results, this paper ultimately demonstrates visually what the orthogonal net of proportion curves looks like if the superposition of a disk and dual-handle structures is still rational. That is, based on the natural solution of the equation, the rate of variance along the ‘radial’ direction of the logarithmic mass density is obtained. Its image is called the ‘basket graph’. The myth of galaxy structure will possibly be resolved based the further study of ‘basket graphs’.
In the end I decided to go for this impressive article, A Cantorian Superfluid Vortex and the Quantization of Planetary Motion
This article suggests a preliminary version of a Cantorian superfluid vortex hypothesis as a plausible model of nonlinear cosmology. Though some parts of the proposed theory resemble several elements of what have been proposed by Consoli (2000, 2002), Gibson (1999), Nottale (1996, 1997, 2001, 2002a), and Winterberg (2002b), it seems such a Cantorian superfluid vortex model instead of superfluid or vortex theory alone has never been proposed before. Implications of the proposed theory will be discussed subsequently, including prediction of some new outer planets in solar system beyond Pluto orbit. Therefore further observational data is recommended to falsify or verify these predictions. If the proposed hypothesis corresponds to the observed facts, then it could be used to solve certain unsolved problems, such as gravitation instability, clustering, vorticity and void formation in galaxies, and the distribution of planet orbits both in solar system and also exoplanets.
I’m not an expert on the “Cantorian superfluid vortex theory”, but I suspect the author may well be correct in saying that it has not previously been proposed as an explanation for the planetary orbits…
A little dickie bird (or, more accurately, quite a large one with impressive plumage) emailed me to point out that today, 18th May 2011, is the 100th anniversary of the death of Gustav Mahler. I couldn’t let the date go unmarked, so thought I’d post something here. I couldn’t decide which of two bits to put up, so decided to go with them both.
Although it’s long (and I don’t really like posting segments of things) it seemed appropriate to offer Der Abschied (“The Farewell”), the last movement from Das Lied von der Erde. I picked this version, featuring the legendary mezzo soprano Christa Ludwig.
Incidentally, Das Lied von der Erde is a symphony and it was written by Mahler after the 8th Symphony. However, it isn’t the 9th Symphony, which is a different work, or indeed the 10th which was unfinished at Mahler’s death and which I heard here in Cardiff recently.
If you haven’t got time to listen to all of that one, try this remarkable recording instead. It’s Urlicht, one of the songs from Das Knaben Wunderhorn which appears in Mahler’s 2nd Symphony (“The Resurrection”), sung by the late Maureen Forrester (contralto) and conducted by none other than a (very young) Glenn Gould.
I heard this nice physics problem today so I thought I’d try it out on here. You will probably be able to find the answer on the net somewhere but please try to figure it out yourself before doing so!
There are two identical chambers, A and B containing identical metal balls which begin the experiment at the same temperature. Apart from the balls, each chamber is a perfect vacuum and has thermally conducting walls at a lower temperature than the ball it contains.
In A the ball is resting on the floor, which is made of material which is a perfect thermal insulator.
In B the ball is hanging from the ceiling by a piece of light inextensible string, not touching the floor. Both the string and the ceiling are also made of perfectly insulating material.
Which ball cools down faster?
Please put your answer through the poll here. When enough people have voted, I’ll tell you the answer…
Nice to see the Rainbow Flag flying at the Cardiff City Council building this morning..
This is in recognition that today, May 17th, is International Day Against Homophobia, or IDAHO for short. Please remember that although attitudes in the UK are much more enlightened than they were only a few years ago, homophobic violence still happens with distressing frequency. And in places such as Uganda, where a bill has been tabled calling for homosexual acts to be punished by the death penalty, matters are even worse…
If you’re wondering why May 17th was chosen for this, then I can tell you that it’s to commemorate May 17th 1990, which is when the World Health Organisation removed homosexuality from its list of “mental illnesses”.