Archive for July, 2012

Solitude

Posted in Jazz with tags , on July 21, 2012 by telescoper

A Grand Design Challenge

Posted in Astrohype, The Universe and Stuff with tags , , , , , on July 20, 2012 by telescoper

While I’m incarcerated at home I thought I might as well make myself useful by passing on an interesting news item I found on the BBC website. This relates to a paper in the latest edition of Nature that reports the discovery of what appears to be a classic “Grand Design” spiral galaxy at a redshift of 2.18. According to the standard big bang cosmology this means that the light we are seeing set out from this object over 10 billion years ago, so the object formed about 3 billion years after the big bang.

I found this image of the object – known to its friends as BX442 – and was blown away by it..

..until I saw the dreaded words “artist’s rendering”. The actual image is somewhat less impressive.

But what’s really interesting about the study reported in Nature are the questions it asks about how this object first into our understanding of spiral galaxy formation. According to the prevailing paradigm, galaxies form hierarchically by progressively merging smaller clumps into bigger ones. The general expectation is that at high redshift – corresponding to earlier stages of the formation process – galaxies are rather clumpy and disturbed; the spiral structure we see in nearby galaxies is rather flimsy and easily disturbed, so it’s quite surprising to see this one. Does BX442 live in an especially quiet environment? Have we seen few high-redshift spirals because they are rare, or because they are hard to find? Answers to these and other questions will only be found by doing systematic surveys to establish the frequency and distribution of objects like this, as well as the details of their internal kinematics.

Quite Interesting.

Astronomy Look-alikes, No. 77

Posted in Astronomy Lookalikes with tags , on July 20, 2012 by telescoper

It’s been a while, but here’s one for you.

Has anyone else noticed the remarkable resemblance between the well-known X-ray astronomer David Baddiel (formerly of Imperial College London and now at the Max Planck Institute in Munich) and the popular comedic entertainer and novelist Paul Nandra. I wonder if by any chance they might be related?

Solitude

Posted in Jazz with tags , , on July 19, 2012 by telescoper

Santa Sangre

Posted in Biographical, Film with tags , , on July 18, 2012 by telescoper

Having spent most of this morning talking about the past (to someone who at least is paid to listen to such boring stuff), I dozed off this afternoon and had a peculiar kind of dream which featured sequences of a film I saw way back in 1990. Strange how the unconscious brain plays with such connections. When I woke up I even thought for a few moments that I was back in 1990 again. Most unnerving.

Anyway the film in question is a neglected masterpiece called Santa Sangre (“Holy Blood”), directed by Chilean-French director Alejandro Jodorowsky. I’m amused that the wikipedia page for this movie is prefaced by a suggestion that the “plot summary may be too long or excessively detailed”, because the plot is so bizarre and convoluted that it would take pages of explanation to do it justice. Anyway, Santa Sangre, set in Mexico, and made on a budget of less than $800,000, is a kind of surrealist horror film, with a complex flash-back then flash-forward narrative structure, that revolves around the life of a young man called Fenix who grows up in a circus. Among a number of traumatic experiences he encounters in his childhood is that his mother has both her arms cut off. Later, in adulthood, Fenix and his mother perform a stage act in which he stands behind her and pretends that his arms are hers. It’s a moving and shocking image, just one of many in a film which is in turns bizarre, disturbing, offensive, violent, horrifying, funny, beautiful and utterly utterly brilliant. Why it’s not more widely celebrated I’ll never know.

Blowing Smoke

Posted in Education, The Universe and Stuff with tags , , , , on July 18, 2012 by telescoper

I’ve been trying to make myself useful over the last few days thinking about the new module I’m supposed to start teaching in October. I’m a bit daunted by it to be honest. The title is The Physics of Fields and Flows and it will be taken by students when they return to start their second year after the summer break.  It’s twice the size of our usual modules, which means a lot of teaching and it’s all new for me, which means a lot of preparation.

The idea behind introducing this module was to teach a number of things together which previously had been taught in separate modules, specifically electromagnetism and vector calculus, or not at all, e.g. fluid mechanics. I’m not sure when or why classical fluid mechanics dropped out the syllabus, but I think it’s an essential part of a physics curriculum in its own right and also helps develop a physical understanding of the mathematics used to describe electric and magnetic fields. It’s one of the unhappy side-effects of modular teaching that it hides the important underlying connections between apparently disparate phenomena which are the essence of what physics is about.

Another thing I reckon we don’t do enough of these days is use lecture demonstrations. That’s harder to do these days because we tend to use pooled lecture theatres that don’t have the specialist equipment that they might have if they were dedicated to physics lectures only.  Practical demonstrations are now usually given second-hand, by using video clips.  That’s fine, but not as good as the real thing.

Anyway, it struck me that it would be quite easy to arrange a demonstration of the transition between laminar and turbulent flow using the simple and relatively inexpensive equipment shown in the rather beautiful image. Unfortunately, however, demonstrating this sort of thing isn’t allowed on University premises even for scientific purposes…

Mutability

Posted in Poetry with tags , on July 18, 2012 by telescoper

From low to high doth dissolution climb,
And sink from high to low, along a scale
Of awful notes, whose concord shall not fail:
A musical but melancholy chime,
Which they can hear who meddle not with crime,
Nor avarice, nor over-anxious care.
Truth fails not; but her outward forms that bear
The longest date do melt like frosty rime,
That in the morning whitened hill and plain
And is no more; drop like the tower sublime
Of yesterday, which royally did wear
His crown of weeds, but could not even sustain
Some casual shout that broke the silent air,
Or the unimaginable touch of Time.

by William Wordsworth (1770-1850)

A Modest Proposal – The Open Journal of Astrophysics

Posted in Open Access with tags , , on July 17, 2012 by telescoper

Following on from yesterday’s piece, I thought I’d make a quick suggestion.

Astrophysics has taken the lead for many years in opening up access to scientific publications – all publications of any merit are available for free on the internet via the arXiv and, in my opinion, the traditional journals are already more-or-less redundant even without considering their “astronomical” cost. The one thing that seems a consistent objection to dispensing with journals altogether is the element of peer review.

However, yesterday’s news that many of us are probably going to have to pay up front fees to publish papers (at thousands of pounds  a pop) will no doubt have convinced many that the government’s decision is potentially ruinous for science. I think it’s time for astrophysics to lead the way again.

My suggestion is that we set up a quick-and-easy trial system to circumvent the traditional publishing route. The basic is that authors who submit papers to the arXiv can have their papers refereed by the community, outside the usual system of traditional journals. I’m thinking of a website on which authors would simply have to post their arXiv ID and a request for peer review. Once accepted, the author would be allowed to mark the arXiv posting as “refereed” and an electronic version would be made available for free on the website.

Although there are many issues to be sorted out,  a limited trial of The Open Journal of Astrophysics could I think happen very soon, perhaps even before the REF.

This idea would require community support setting it up (and doing the refereeing/administration)  and it would probably only get off the ground if sufficient senior astronomers get on board. It will no doubt also take money to get it going. However, I feel sufficiently strongly about this that I’m prepared to stump up £10k from my own pocket just to get it started.

If anyone has ideas about how to take this project forward, is willing to help with technical expertise, or if any prominent astronomers would simply like to add their name in support of the idea please do so through the comments box below.  Any further pledges of financial support would of course also be welcome.

And please pass this message on via Twitter/email/whatever, so I can gauge the level of support.

Open Access, of the Closed Kind

Posted in Open Access with tags , , , on July 16, 2012 by telescoper

Last night a story began circulating that the government, through RCUK, was intending to move quickly on the matter of open access to research outputs. This morning there’s a press statement from RCUK, the text of which is here:

Research Councils UK (RCUK) has today, 16th July 2012, unveiled its new Open Access policy. Informed by the work of the National Working Group on Expanding Access to Published Research Findings, chaired by Professor Dame Janet Finch, the policy at once harmonises and makes significant changes to existing Research Councils’ Open Access policies.

Professor Douglas Kell, RCUK Champion for Research and Information Management commented: “Widening access to the outputs of research currently published in journals has the potential to contribute substantially to furthering the progress of scientific and other research, ensuring that the UK continues to be a world leader in these fields. I am delighted that, together, the Research Councils have been able to been able both to harmonise and to make significant changes to their policies, ensuring that more people have access to cutting edge research that can contribute to both economic growth in our knowledge economy and the wider wellbeing of the UK.”

Drs. Astrid Wissenburg, Chair of RCUK Impact Group and RCUK representative on the National Working Group on Open Access commented: “As the bodies charged with investing public money in research, the Research Councils take very seriously their responsibilities in making the outputs from this research publicly available – not just to other researchers, but also to potential users in business; charitable and public sectors; and to the general public. Working with other funders such as HEFCE, DFID and the Wellcome Trust, this new policy signifies a move to a sustainable, affordable and transparent model of making outputs from the research that they fund more openly accessible.”

The new policy, which will apply to all qualifying publications being submitted for publication from 1 April 2013, states that peer reviewed research papers which result from research that is wholly or partially funded by the Research Councils:

  • must be published in journals which are compliant with Research Council policy on Open Access, and;
  • must include details of the funding that supported the research, and a statement on how the underlying research materials such as data, samples or models can be accessed.

Criteria which journals must fulfill to be compliant with the Research Councils’ Open Access policy are detailed within the policy, but include offering a “pay to publish” option or allowing deposit in a subject or institutional repository after a mandated maximum embargo period. In addition, the policy mandates use of ‘CC-BY’, the Creative Commons ‘Attribution’ license, when an APC is levied. The CC_BY licence allows others to modify, build upon and/or distribute the licensed work (including for commercial purposes) as long as the original author is credited.

The Research Councils will provide block grants to eligible UK Higher Education Institutions, approved independent research organisations and Research Council Institutes to support payment of the Article Processing Charges (APCs) associated with ‘pay-to-publish’. In parallel, eligible organisations will be expected to set-up and manage their own publication funds. The Research Councils will work with eligible organisations to discuss the detail of the new approach to funding APCs and to ensure that appropriate and auditable mechanisms are put in place to manage the funds.

Along with HEFCE and other relevant Funding Bodies, we shall monitor these policies actively, both to review their effects and to ensure that our joint objectives on Open Access are being met.

The RCUK policy on Access to Research Outputs is available here .

Although this seems like a victory for open access, it isn’t really. If it’s a victory for anyone it’s a victory for the  cartel of  ruthlessly exploitative profiteers that is the Academic Publishing Industry. For what the RCUK proposal involves is shifting the “cost” of scientific publishing from journal subscriptions to “Article Processing Charges”, which means authors will have to pay upfront to have their work  considered for publication. And when I say “pay”, I mean pay. It’s anticipated that the average APC for a paper will be around £2000. That’s why they call it “Gold” Open Access, I suppose.

An APC of this size  is indefensible. Scientific papers are nowadays typeset by the author and refereed by other academics. The cost to the publisher is tiny. That they need such an extortionate amount to maintain their profit levels just demonstrates the extent to which they’ve  been ripping us of all these years. Worse, having to pay up front  excludes scientists who don’t have access to the funds needed to pay these charges. This isn’t open access, it’s just a slightly different form of the old racket.

Moreover, I understand that no new money is coming to pay these charges. RCUK is finding the funds quoted above from its existing budget. That means that research somewhere will be cut to pay the additional cost of running the new system alongside the old. Better in my view to cut out the publishers altogether, and let universities and researchers do everything themselves. In astrophysics, we’re most of the way there already, in fact.

I for one have no intention of ever paying an Article Processing Charge. If the journals I publish in insist on levying one, I’ll just forget about the journals altogether and put my papers on the arXiv. I urge my colleagues to do the same.

To “boldly” go…

Posted in Biographical, The Universe and Stuff with tags , , , on July 15, 2012 by telescoper

I thought anyone reading my rather gloomy recent posts could probably do with a laugh so I thought I’d put this up. It’s something I posted a while ago, in fact, but the video links on that have long since evaporated; a newer version appeared recently on Youtube so I thought I’d update it and re-post the piece.

This clip contains a short item  I did about twelve years ago for the BBC series Space, which was presented by Sam Neill. It was subsequently screened outside the UK with an alternative title, Universe. Originally we were going to demonstrate wormholes using a snooker table, clever editing and reversed video. However, the producer, Jeremy,  decided that wouldn’t look spectacular enough so instead we went to St Anton in Austria: I was flown over the Alps in a helicopter and then driven through the Arlberg tunnel in an impressively fast car. Well worth the cost to license fee payers, I’m sure, even if the three-day trip to Austria by me and a crew of six as well as the hire of the helicopter ended up as a mere three minutes of screen time…

The episode I was in, the last of 6 in the series, was called To Boldly Go. I remember suggesting to the producer that the only way to travel faster than light in the manner required was with a split infinitive drive, but they didn’t use that in the final script.

The segment I’m in starts at about 18:00 on the video. Notice how, in the helicopter sequence, I give the appearance of being completely terrified. A fine piece of acting by me, I thought. *Cough*

The item is daft, I know, and I don’t really believe any of that stuff about wormholes, but it was great fun doing it and I have to say the camera guys took some amazing footage of the mountains from the helicopter.

P.S. The next sequence, after mine, explains how the Anglo-Australian 2dF Galaxy Redshift Survey was done in order to provide a map for future generations of intergalactic space travellers. Really?