Archive for April, 2011

(Guest Post) Physics and Binary Creep

Posted in Education, Finance, Science Politics with tags , , , , , , on April 15, 2011 by telescoper

His Excel-lence (geddit?) Paul Crowther has been at it again, using his favourite packages sophisticated graph-plotting facilities to produce the interesting figures that go with another guest post….

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Last week’s Times Higher Ed included a news item headlined ‘binary creep’, in which HEFCE were considering restricting support for PhD research students to universities of the highest research quality. Concerns were expressed in the article about a two stream future for universities – research intensives in the fast lane and ‘the rest’ in the slow lane. This reminded me of a recent Times Higher Ed interview with the former Commons’ Science and Technology Committee chairman, Lord (Phil) Willis. Lord Willis argued that the UK could probably sustain “no more than 30” universities with the capacity to attract the best global researchers and carry out world-class research, a view no doubt shared by ministers and civil servants within BIS. I should qualify the following line of thought by emphasising that this is not Government policy, although both stories reflect moves by funding agencies to further concentrate increasingly scarce resources on the highest ranked research universities. For example, in England HEFCE is expected to withdraw all quality-related (QR) support from 2* RAE research from 2012 onwards.

Mindful of the fact that in such a vision for the future, there would be a comparatively few, research intensive universities (`winners’) where would that leave the remainder (‘losers’), especially for physics? Research quality can be quantified in all manner of ways, but for simplicity I have adopted the Quality Index (QI) from Research Fortnight which provides a single mark out of 100 based on RAE quality profiles (4*:3*:2*:1* weighted 8:4:2:1). The chart below shows the  QI-ranked list of more-or-less all 120 UK universities who were rated in RAE 2008. It will come as no surprise to anyone that Oxbridge, LSE and Imperial top the rankings, closely followed by UCL and a few other high flyers, but beyond the top 10 perhaps more surprising there are no natural breaks in quality from Durham and QMUL in joint 11th place, to Bolton at 107th.

Thinking out loud about Willis’ assertion that the UK should not be spreading the jam more thinly than, say, the leading 30 universities, there would obviously be individual physics departments currently outside the top 30 which are ranked significantly higher than those within the top 30. To illustrate this, the chart also includes (in blue) physics QI scores for all teaching institutions that were assessed under the UOA 19 in RAE 2008. To blindly follow Lord Willis’ suggestion, 16 out of 42 institutions involved with physics research – comprising 37 per cent of all academic staff – would be clear losers. These would include one physics department raked within the top 10 (scoring 49) because its host institution is ranked 34th overall, while winners would include a department scoring 31, i.e. ranked 40th (out of 42) for physics, as a result of its university squeezing into the top 30. Chemistry – within the same RAE sub-panel as physics – reveals a broadly similar distribution, although there is perhaps a greater concentration of the highest research quality in the overall top 20, as the chart below illustrates.

Alternatively, if there is to be further concentration, one could argue that research funding should focus on, say, the top 20 physics departments regardless of the performance of their host institution. Indeed, already 80 percent of STFC spending goes to only 16 universities. Still, as RAE grades indicate, a strength of UK physics is the breadth of high quality research, with no natural break points until beyond 30th place in the rankings, as the final chart shows. Of course, RAE scores aren’t the sole criterion being discussed, with “critical mass” the other main driver. Due in large part to the big four, 70 per cent of physics academic staff submitted for RAE 2008 are in departments that are currently ranked in the top 20. Chemistry has a similar story to tell in the chart, albeit displaying a somewhat steeper QI gradient.

What might be the long-term consequences of a divergence between a small number of “research-facing” universities and the rest? It is apparent that if the number of physics departments involved in research were reduced by a third, some high quality research groups would be lost, regardless of precisely where the cleaver ultimately fell. Let’s too not forget that astrophysics represents the largest sub-field of physics from the last IOP survey, as measured in numbers of academics.

If policy makers don’t see anything fundamentally wrong with A-level physics being taught by teachers qualified, say, in biology, then they might too wonder whether physics degrees could be taught by academics lacking a physics research background? This might work for first year undergraduate courses, but thereafter isn’t more specialist knowledge needed that a research background most readily provides? How would the third of physics academics outside the top 30 universities react to the prospects of a teaching-only future? Many surely would consider jumping ship either to one of the chosen few or overseas, further decreasing the pool of those with research experience in the remaining physics departments. This is further complicated by the expected political desire that physics departments should be appropriately distributed geographically across England, Scotland, Wales and Northern Ireland.

As a final thought experiment, the fate of physics departments facing the prospect of a teaching-only future might also be binary in nature, either (a) whither and die, decreasing the range of institutions offering degrees in physics (or physical sciences, natural sciences etc.); perversely at a time when the Government are anxious to maintain the number of students studying Science, Technology, Engineering and Mathematics (STEM) subjects, or (b) thriving – free from the distractions of chasing dwinding research grants – by adapting to offer shorter duration physics degrees, described as “cheap and cheerful” by Dr David Starkey during the discussion on student fees on last Thursday’s Newsnight. To reiterate, it is not explicit Government policy to actively reduce the number of physics departments that receive research allocations, but this seems to be the general “direction of travel” in policy-makers speak, so I fear a rocky path ahead..


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Lost in Translation

Posted in Uncategorized on April 14, 2011 by telescoper

I recently purchased, and placed in my possession, a remote control device for a Canon digital camera. Last night I got it out with the intention of playing with it – the camera, I mean – and was forced to read the instructions that came with the remote controller. I decided to pass them on verbatim via this blog in case any of my readers is wondering how to operate this sort of gadget. I quote:

When the use group racket function, need transmitter’s digit code switch to establish completely only as 1234, then all receivers implements the active control to the region, realizes to camera focusing, the shutter and the B mode control.

I hope that’s clear. Any questions?


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A Discovery At the Tevatron! – Maybe (via Collider Blog)

Posted in The Universe and Stuff with tags , on April 13, 2011 by telescoper

I mentioned during a particle physics lecture today that sometimes big results grow from small statistical indications, but more often than not these turn out to be false detections. I wonder what this will turn out to be?

A Discovery At the Tevatron! - Maybe The CDF Collaboration released this plot today (arXiv:1104.0699, 6-April-2011): The blue peak at MJJ = 145 GeV is not predicted by the standard model, of course. The CDF paper is very clear and sober, and it is good that the collaboration reported these results. Let me outline the analysis in a few paragraphs. Th … Read More

via Collider Blog


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Storm

Posted in Poetry with tags on April 13, 2011 by telescoper

And now, as they say, for something completely different. I heard about this at a boozy dinner last Monday night and tracked it down on Youtube. I’m a bit late onto this gem, but I love it. See what you think. It’s by the brilliantly talented Tim Minchin. Oh, and there’s some (actually quite a lot of) off-colour language in it, so if that bothers you then please listen with earplugs in.


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Intimations of Immortality

Posted in Poetry with tags , on April 12, 2011 by telescoper

One of my very first blog posts was inspired by a book of poems by William Wordsworth. That piece included an excerpt from this poem, and since I’m a bit pressed for time these days I thought I’d post the whole thing. It also seems to suit a theme that’s been running through a few recent items. The full title is ODE: Intimations of Immortality from Reflections of Early Childhood, and it was written in the period 1803-1806. In the poem, Wordsworth returns to a theme he developed in Tintern Abbey, which provides an interesting contrast with this later masterpiece. You might disagree with Wordsworth’s metaphysical viewpoint, but I think few will argue that there’s sheer genius in his use of language.

I found a nice critique on the net, from which I decided to post the following extract:

Wordsworth consciously sets his speaker’s mind at odds with the atmosphere of joyous nature all around him, a rare move by a poet whose consciousness is so habitually in unity with nature. Understanding that his grief stems from his inability to experience the May morning as he would have in childhood, the speaker attempts to enter willfully into a state of cheerfulness; but he is able to find real happiness only when he realizes that “the philosophic mind” has given him the ability to understand nature in deeper, more human terms—as a source of metaphor and guidance for human life. This is very much the same pattern as “Tintern Abbey” ’s, but whereas in the earlier poem Wordsworth made himself joyful, and referred to the “music of humanity” only briefly, in the later poem he explicitly proposes that this music is the remedy for his mature grief.

The structure of the Immortality Ode is also unique in Wordsworth’s work; unlike his characteristically fluid, naturally spoken monologues, the Ode is written in a lilting, songlike cadence with frequent shifts in rhyme scheme and rhythm. Further, rather than progressively exploring a single idea from start to finish, the Ode jumps from idea to idea, always sticking close to the central scene, but frequently making surprising moves, as when the speaker begins to address the “Mighty Prophet” in the eighth stanza—only to reveal midway through his address that the mighty prophet is a six-year-old boy.

And here is the Ode in full. It’s a poem that moves me in ways I can’t explain.

THERE was a time when meadow, grove, and stream,
The earth, and every common sight,
To me did seem
Apparelled in celestial light,
The glory and the freshness of a dream.
It is not now as it hath been of yore;–
Turn wheresoe’er I may,
By night or day,
The things which I have seen I now can see no more.

II

The Rainbow comes and goes,
And lovely is the Rose,
The Moon doth with delight
Look round her when the heavens are bare,
Waters on a starry night
Are beautiful and fair;
The sunshine is a glorious birth;
But yet I know, where’er I go,
That there hath past away a glory from the earth.

III

Now, while the birds thus sing a joyous song,
And while the young lambs bound
As to the tabor’s sound,
To me alone there came a thought of grief:
A timely utterance gave that thought relief,
And I again am strong:
The cataracts blow their trumpets from the steep;
No more shall grief of mine the season wrong;
I hear the Echoes through the mountains throng,
The Winds come to me from the fields of sleep,
And all the earth is gay;
Land and sea
Give themselves up to jollity,
And with the heart of May
Doth every Beast keep holiday;–
Thou Child of Joy,
Shout round me, let me hear thy shouts, thou happy
Shepherd-boy!

IV

Ye blessed Creatures, I have heard the call
Ye to each other make; I see
The heavens laugh with you in your jubilee;
My heart is at your festival,
My head hath its coronal,
The fulness of your bliss, I feel–I feel it all.
Oh evil day! if I were sullen
While Earth herself is adorning,
This sweet May-morning,
And the Children are culling
On every side,
In a thousand valleys far and wide,
Fresh flowers; while the sun shines warm,
And the Babe leaps up on his Mother’s arm:–
I hear, I hear, with joy I hear!
–But there’s a Tree, of many, one,
A single Field which I have looked upon,
Both of them speak of something that is gone:
The Pansy at my feet
Doth the same tale repeat:
Whither is fled the visionary gleam?
Where is it now, the glory and the dream?

V

Our birth is but a sleep and a forgetting:
The Soul that rises with us, our life’s Star,
Hath had elsewhere its setting,
And cometh from afar:
Not in entire forgetfulness,
And not in utter nakedness,
But trailing clouds of glory do we come
From God, who is our home:
Heaven lies about us in our infancy!
Shades of the prison-house begin to close
Upon the growing Boy,
But He beholds the light, and whence it flows,
He sees it in his joy;
The Youth, who daily farther from the east
Must travel, still is Nature’s Priest,
And by the vision splendid
Is on his way attended;
At length the Man perceives it die away,
And fade into the light of common day.

VI

Earth fills her lap with pleasures of her own;
Yearnings she hath in her own natural kind,
And, even with something of a Mother’s mind,
And no unworthy aim,
The homely Nurse doth all she can
To make her Foster-child, her Inmate Man,
Forget the glories he hath known,
And that imperial palace whence he came.

VII

Behold the Child among his new-born blisses,
A six years’ Darling of a pigmy size!
See, where ‘mid work of his own hand he lies,
Fretted by sallies of his mother’s kisses,
With light upon him from his father’s eyes!
See, at his feet, some little plan or chart,
Some fragment from his dream of human life,
Shaped by himself with newly-learned art;
A wedding or a festival,
A mourning or a funeral;
And this hath now his heart,
And unto this he frames his song:
Then will he fit his tongue
To dialogues of business, love, or strife;
But it will not be long
Ere this be thrown aside,
And with new joy and pride
The little Actor cons another part;
Filling from time to time his “humorous stage”
With all the Persons, down to palsied Age,
That Life brings with her in her equipage;
As if his whole vocation
Were endless imitation.

VIII

Thou, whose exterior semblance doth belie
Thy Soul’s immensity;
Thou best Philosopher, who yet dost keep
Thy heritage, thou Eye among the blind,
That, deaf and silent, read’st the eternal deep,
Haunted for ever by the eternal mind,–
Mighty Prophet! Seer blest!
On whom those truths do rest,
Which we are toiling all our lives to find,
In darkness lost, the darkness of the grave;
Thou, over whom thy Immortality
Broods like the Day, a Master o’er a Slave,
A Presence which is not to be put by;
Thou little Child, yet glorious in the might
Of heaven-born freedom on thy being’s height,
Why with such earnest pains dost thou provoke
The years to bring the inevitable yoke,
Thus blindly with thy blessedness at strife?
Full soon thy Soul shall have her earthly freight,
And custom lie upon thee with a weight
Heavy as frost, and deep almost as life!

IX

O joy! that in our embers
Is something that doth live,
That nature yet remembers
What was so fugitive!
The thought of our past years in me doth breed
Perpetual benediction: not indeed
For that which is most worthy to be blest–
Delight and liberty, the simple creed
Of Childhood, whether busy or at rest,
With new-fledged hope still fluttering in his breast:–
Not for these I raise
The song of thanks and praise;
But for those obstinate questionings
Of sense and outward things,
Fallings from us, vanishings;
Blank misgivings of a Creature
Moving about in worlds not realised,
High instincts before which our mortal Nature
Did tremble like a guilty Thing surprised:
But for those first affections,
Those shadowy recollections,
Which, be they what they may,
Are yet the fountain light of all our day,
Are yet a master light of all our seeing;
Uphold us, cherish, and have power to make
Our noisy years seem moments in the being
Of the eternal Silence: truths that wake,
To perish never;
Which neither listlessness, nor mad endeavour,
Nor Man nor Boy,
Nor all that is at enmity with joy,
Can utterly abolish or destroy!
Hence in a season of calm weather
Though inland far we be,
Our Souls have sight of that immortal sea
Which brought us hither,
Can in a moment travel thither,
And see the Children sport upon the shore,
And hear the mighty waters rolling evermore.

X

Then sing, ye Birds, sing, sing a joyous song!
And let the young Lambs bound
As to the tabor’s sound!
We in thought will join your throng,
Ye that pipe and ye that play,
Ye that through your hearts to-day
Feel the gladness of the May!
What though the radiance which was once so bright
Be now for ever taken from my sight,
Though nothing can bring back the hour
Of splendour in the grass, of glory in the flower;
We will grieve not, rather find
Strength in what remains behind;
In the primal sympathy
Which having been must ever be;
In the soothing thoughts that spring
Out of human suffering;
In the faith that looks through death,
In years that bring the philosophic mind.

XI

And O, ye Fountains, Meadows, Hills, and Groves,
Forebode not any severing of our loves!
Yet in my heart of hearts I feel your might;
I only have relinquished one delight
To live beneath your more habitual sway.
I love the Brooks which down their channels fret,
Even more than when I tripped lightly as they;
The innocent brightness of a new-born Day
Is lovely yet;
The Clouds that gather round the setting sun
Do take a sober colouring from an eye
That hath kept watch o’er man’s mortality;
Another race hath been, and other palms are won.
Thanks to the human heart by which we live,
Thanks to its tenderness, its joys, and fears,
To me the meanest flower that blows can give
Thoughts that do often lie too deep for tears.


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Raising the Veil

Posted in Biographical, Politics with tags , , , , , , on April 11, 2011 by telescoper

We’re now into the last week of teaching term here in Cardiff, and I’m feeling like I’m running the final stages of a marathon. I like the idea of fitting all the second semester’s teaching in before the Easter break but I have to admit I’m struggling to make the distance, especially because so many things have to be done this week before we finish. Next week I’m off to the National Astronomy Meeting in Llandudno too. For all these reasons (and a few others) I won’t have much blogging time for a bit, so my posts may be a bit thin on the ground (or whatever it is that the blogosphere rests on).

However, I couldn’t resist using this blog to express my opinion about one of the big news items of the day, the introduction, today, in France, of a ban on women  wearing of the veil in public. I think it’s particularly interesting timing after the discussion of religion and science that arose after I reblogged a post by Andy Lawrence about the Templeton Prize.

Frankly, I think the new French law is monstrous. I’m not a Muslim, but it is  abhorrent to me that the state should seek to prevent individuals expressing their religious beliefs. I obviously don’t think anyone should be forced to wear the veil against their will, but in an open society those who choose to wear it  should be allowed to do so.    And I don’t buy the argument that it’s some sort of identification issue, either. What’s next, a ban on sunglasses and balaclavas? No. In any case there are only about 2,000 women in France who regularly wear the veil. Let’s make no bones about it, this law is specifically intended to pander to anti-Muslim sentiments. It stinks. I like to think we’d never allow such a thing in this country.

But here’s the flip side. I read at the weekend of the case of a candidate for the forthcoming Welsh Assembly Elections. Sion Owens is on the South Wales West Regional List for the British National Party (BNP). At the weekend he was arrested under the Public Order Act after a video emerged in which he was seen to be burning a copy of the Qur’an. Apparently the original charge was dropped today when Mr Owens appeared before the Magistrates Court in Swansea, but investigations are still continuing.

I haven’t seen the video so can’t comment further on what precisely Mr Owens is alleged to have done. I’m not an expert on the Public Order Act(s)  either- or at least not the parts that deal with religiously motivated offences – but some sections are open to extremely broad interpretations, and that’s really what the problem is.

I would say though that I’m the last person to want to support the BNP,  which as far as I’m concerned is an extremist organisation run by right-wing thugs for the benefit of other right-wing thugs.  It seems possible, therefore, and perhaps even likely, that this person did set alight to the Qur’an with the specific intention of  provoking religious tension. If that were the case then it would clearly fall within the law as defined by the Public Order Act.

However, even if that were the case I have to say I do not think that what he did should be a criminal offence. It might be  abusive, uncivilised, and reprehensible – words not infrequently applied to the BNP, I might add – but I don’t think it should be illegal. If we’re going to have a truly  free society we have to get used to the idea that people have the right to do and say things we wouldn’t do or say ourselves. And if people even want to vote for creatures like Mr Owens, they should be allowed to do so….

..although I’ll be hoping he loses his deposit.


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For Charity’s Sake…

Posted in Art, Biographical with tags , , on April 10, 2011 by telescoper

Our beautiful spring continues. It’s another lovely day here in Cardiff so I’m going to get some work done in the garden then catch up with the weekend’s crosswords. I was too busy yesterday to get round to the Saturday Guardian Prize Crossword, so now I’ve got it and the Observer ones to do today.

I went to a posh do last night. The Vale of Glamorgan County Council is renowned for the splendour of its Balls, and last night the Mayor held one of them for Charity. This event took place in a Marquee which had been specially erected in the magnificent setting of Dyffryn Gardens. I’ve never been there before, but am definitely planning togo again, as we didn’t get very much time to see the gardens and no time at all to see the famous arboretum there. Anyway, here’s a shot of us wandering around the (slightly dilapidated) Dyffryn House, which forms the centrepiece of the Dyffryn Estate, with champagne glasses in hand. How very decadent.

The Ball itself was very pleasant. The food was good, and there was plenty of wine to go around. The dance band was a little ropey, in my opinion, but plenty of people were dancing and it was all jolly good fun. Also I was one of the youngest people there, so it was quite nice, for once, not to be one of the oldies.

Since it was a fundraising event for Charity there was the obligatory raffle, followed by an auction. Among the items being sold were two paintings by local artist Charles Byrd. I ended up buying one of them, which happened to have been painted in 1963 – the year of my birth. I’m very pleased with my acquisition, but haven’t figured out where I’m going to hang it yet; here’s a blurry phone picture of it in my study.


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Footprints in the Sands of Time

Posted in Poetry with tags , , on April 9, 2011 by telescoper

A busy day – and a beautiful one – and I’m off to a posh do this evening, so I just have time for a brief contribution. I thought I’d share these few verses from the inspirational poem A Psalm of Life by Henry Wadsworth Longfellow. I hope Tom Shanks reads them…

Tell me not, in mournful numbers,
Life is but an empty dream!
For the soul is dead that slumbers,
And things are not what they seem.

Life is real! Life is earnest!
And the grave is not its goal;
Dust thou art, to dust returnest,
Was not spoken of the soul.

In the world’s broad field of battle,
In the bivouac of Life,
Be not like dumb, driven cattle!
Be a hero in the strife!

Lives of great men all remind us
We can make our lives sublime,
And, departing, leave behind us
Footprints on the sands of time;

and here they are, read by the late great Paul Scofield:


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Gravity waves goodbye to LISA?

Posted in Science Politics, The Universe and Stuff with tags , , , on April 8, 2011 by telescoper

It seems that we’re not allowed to have any good news these days without a bit of bad to go with it. This week it has emerged here and there that the US National Aeronautics and Space Administration (better known as NASA) is pulling the plug on one of the most exciting space missions on its drawing board. Feeling the pressure of budget constraints and a ballooning overspend on the James Webb Space Telescope (JWST), NASA has decided not to participate further in the Laser Interferometric Space Antenna, a.k.a. LISA. The project teams working on LISA have been disbanded, and the shutters have been pulled down on a project which would have revolutionised astrophysics by opening up new possibilities of observing astronomical objects using gravitational waves, rather than electromagnetic radiation.

This does not mean that LISA is necessarily completely dead. For one thing, it was always planned to be a partnership between NASA and its European counterpart ESA (the European Space Agency); you can find ESA’s LISA page here. In fact a technological demonstrating mission LISA-Pathfinder, operated by ESA, is scheduled for launch in 2013.
It remains possible that ESA will proceed on its own with some version of LISA, although given its own financial constraints it is unlikely that it will be able to fund the full original mission concept. The best we can hope for, therefore, is probably some slimmed-down low-budget version and perhaps an even later launch date.

I still hold out some hope that LISA might come out of mothballs when gravitational waves are actually detected. This may well be accomplished by Advanced LIGO, a ground-based interferometric system based in the states, although it has to be said that gravitational waves have been “on the brink of detection” for at least 30 years and still haven’t actually been found. When detection does become a reality it might galvanise NASA into finding room in its budget again.

This news will be a particularly concern for the sizeable Gravitational Physics group here in the School of Physics & Astronomy at Cardiff University. However, LISA was very much in the planning and development stages so it won’t impact their current work. I haven’t had the chance to discuss the news about LISA with members of this group, so I’d be interested to receive comments from them, or indeed anyone else who knows more about what NASA’s decision may or not mean for the future of gravitational wave physics.


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On My Radio (Telescope) …

Posted in Science Politics, The Universe and Stuff with tags , , , , , , on April 7, 2011 by telescoper

A piece of news I should have passed on sooner than this is the announcement that the  Headquarters for the Square Kilometre Array will be based at the Jodrell Bank Observatory which, as you all know, is situated in the English Midlands.

The Square Kilometre Array (known to the astronomical community as SKA) will be, when it’s built, the largest radio telescope, and in fact the largest telescope of any kind, ever constructed.  Building it will be a huge technical challenge, and it involves teams from all around the world. Although it hasn’t yet been decided where the actual kit will be sited – Australia and South Africa are two strong contenders – it’s definitely a coup for the UK to be hosting the Project Office. So congratulations to Jodrell Bank and to John Womersley, Director of Science Programmes at the Science and Technology Facilities Council who will be heading up the operation.

I think  that the SKA is by far the most exciting project in ground-based astronomy on the STFC books: it has a significantly stronger science case than its competitor in the optical part of the spectrum, the European Extremely Large Telescope (E-ELT), although it is admittedly more of a challenge to build it from a technological point of view. Over the last few years I’ve feared on many occasions that STFC would have to pull out of one of these two very expensive projects and that E-ELT would be the one that survived because it is within the remit of the European Southern Observatory (ESO) to which we pay a hefty subscription. Fortunately the clouds seem to have lifted a bit and it looks like we’re going to remain in both, which is excellent news for UK astronomy.

I was thinking of putting up a bit of music to celebrate the good news. Hmmm….Ska….radio. No brainer really. I wonder who was The Selecter for the  location of the SKA Project Office?

P.S. I just looked at the date when On My Radio was in the charts. October 1979, when I was 16.  I have to confess that in those days I had a massive crush on lead singer Pauline Black


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