Author Archive

Tuesday’s Child

Posted in Bad Statistics, Cute Problems with tags on July 5, 2013 by telescoper

I came across this little teaser this morning and thought I’d share it here.

I have two children, one of whom is a son born on a Tuesday. What is the probability that I have two boys?

Please select an answer from the possibilities listed in the poll below.

This is not a new problem and you can probably find the answer on the internet very quickly, but please try to work it out yourself before doing so. In other words, try thinking before you google! I’ll add a link to a discussion of this puzzle in due course..

UPDATE: Here’s the discussion that triggered this post. As you can see from the poll, most of you got it wrong!

Prudential Negligence

Posted in Biographical, Finance with tags , , on July 4, 2013 by telescoper

It’s been a long day, but before heading home I thought I’d do a quick post to update what looks like turning into quite a saga. Not long ago I blogged about a surprise letter of condolence I received about my father’s death. It was a surprise because my Dad died nearly six years ago…

The letter I referred to above actually came from the Annuities Department of the Prudential. I didn’t name them in my previous post because I didn’t want to rock the boat, and in any case I couldn’t remember the Pru being among the list of companies I wrote to after the funeral all that time ago. In between my previous post and now I had the chance to go through my old correspondence and establish that I did, in fact, write to the Prudential soon after my father passed away. To confirm this, a few days ago I received another letter from them admitting that they received my letter in 2007 and failed to act on it. I hadn’t pursued the matter at the time, probably because I thought they would just stop the small annuity he was apparently receiving from them and that would be that. In fact it turns out some money is owed (and has been owing all this time) to my Dad’s estate and nobody at Prudential bothered to do anything about it until now. I’m not impressed.

Naturally I’m a bit cheesed off with this, as I now have to do a number of things (like getting a copy of my father’s death certificate) in order to claim the residual funds. I’ll also be expecting quite substantial compensation for the gross negligence Prudential have shown too.

However, the main reason for posting about this episode is that it doesn’t exactly inspire me with confidence about the workings of the Prudential. That’s worth bearing in mind by any academics who have taken out Additional Voluntary Contributions (AVCs) to the Universities Superannuation Scheme (USS) in order to plan for early retirement or to make up for missing years’ contributions. You see, the USS voluntary contribution scheme is in fact managed by Prudential…

Vanitas Vanitatum

Posted in Poetry with tags , , , on July 4, 2013 by telescoper

All the flowers of the spring
Meet to perfume our burying;
These have but their growing prime,
And man does flourish but his time:
Survey our progress from our birth;
We are set, we grow, we turn to earth.
Courts adieu, and all delights,
All bewitching appetites!
Sweetest breath and clearest eye,
Like perfumes, go out and die;
And consequently this is done
As shadows wait upon the sun.
Vain ambition of kings
Who seek by trophies and dead things
To leave a living name behind,
And weave but nets to catch the wind.

by John Webster (c. 1580- c. 1634)

Some Day My Prince Will Come..

Posted in Jazz with tags , , on July 3, 2013 by telescoper

I’m currently sitting in my office eating a sandwich and girding my loins for three hours of appraisal training this afternoon. Just time, therefore, to post this musical gem I recently discovered on Youtube. It’s Bill Evans recorded in 1965

Miles Davis said of Bill Evans “He plays the piano the way it should be played”. I’m not going to disagree with that, because I think Bill Evans was wonderful, but keep an ear out for Chuck Israels fantastic work on bass too!

Physics Proverbs

Posted in The Universe and Stuff with tags , on July 2, 2013 by telescoper

I was a bit bored on the bus this morning, as it got stuck in a traffic jam, so decided to amuse myself (and probably nobody else) by thinking up physics-related versions of traditional proverbs and tweeting them (hashtag #physicsproverbs). I thought it might be fun to use them to indulge in a bit of audience participation, by asking the blogosphere to contribute their own through  the comments box below.

Here are some of my offerings:

  • Never mind the Q-factor, feel the FWHM
  • Don’t throw stones if there are periodic boundary conditions
  • A stitch in time may violate causality
  • A thing of beauty is now generally known as a bottom
  • No amplifier, no gain
  • Nothing is certain, except death and deterministic processes
  • Blood is thicker than dark matter
  • May the Devil take the Hindmarsh
  • Don’t change potentials in mid streamline
  • Angular momentum makes the world go round
  • Many a micro makes a mega
  • When the cat’s away the mice will annoy Dr Schrödinger
  • Ask a silly question, and you might well get a research grant
  • Discreteness is the greater part of granularity
  • There’s no time like t=0
  • The course of a random walk never did run smooth
  • Many hadrons make very few Higgs Bosons at CERN
  • Actions speak louder than differential equations
  • Radiation pressure makes light work
  • Don’t cast your PRLs before swine
  • Nature abhors most of the papers submitted there
  • Photons should be seen and not heard. As opposed to phonons.
  • Power corrupts. Absolute power has exactly the same effect because power is always positive.

You can see all the tweets resulting from the Twitter version of this game here.

The Local Universe

Posted in The Universe and Stuff with tags , , , , on July 2, 2013 by telescoper

I just stumbled across this on Amanda Bauer’s blog  and thought I’d post it here because it’s so nice. The film is by Hélène Courtois, Daniel Pomarède, R. Brent Tully, Yehuda Hoffman, and Denis Courtois and it describes the Cosmography – like geography, only more cosmic – of the Local Universe. I’m not sure there’s a consensus among cosmologists about what exactly “local” means, but I’d say it probably means out to a few hundred Megaparsecs from the observer (say up to about a billion light years) or, alternatively, with redshifts much less than unity.  That may not sound very nearby at all, but even on such scales the look-back time is sufficiently short that the effect of cosmic evolution and/or the expansion of the Universe is negligible, so when we look at objects at such distances we’re seeing them as they are “now” rather than as they were in the past, which is the case when we study extremely distant objects.

Slow Progress for Female Physics Professors

Posted in Biographical, The Universe and Stuff with tags , , , , on July 1, 2013 by telescoper

One of the more pleasant jobs I have to do these days is to congratulate staff in the School of Mathematical and Physical Sciences at the University of Sussex when they get promoted, whether it be to Senior Lecturer, Reader or Professor. There has been quite a crop of promotions at all levels in the School recently, owing to the excellent contributions made by so many people to teaching, research and other aspects of the work we do.

One of the successful promotion candidates in the latest round was the Head of our Experimental Particle Physics group, Antonella de Santo, whose promotion to Professor of Physics makes her the first ever female Professor of Physics at the University of Sussex. I’m rather embarrassed to admit that, actually, as the University has existed for 51 years, but at least I can say better late then never!

Anyway, Antonella’s well-deserved success prompted me to look into the statistics of female physics & astronomy professors. I’ve already posted about how the proportion of female undergraduates studying physics as been stuck at around the 20% mark for a decade despite strenuous efforts to widen participation. A recent (2012) study by the Institute of Physics contains a wealth of statistical information about staff in Physics departments, which I encourage people to read if they’re interested in the overall issue with equality and diversity in physics. Here I’ll just pull out the figure (based on a 2010 survey) that out of a total of 650 Professors of Physics (and/or Astronomy) in the UK, just 5.5% were female. At that date about 20 physics departments had no female professors at all; that would have included Sussex, of course.

Another University, Liverpool, also recently appointed its first female Professor of Physics in the person of Tara Shears, another particle physicist. The current  Head of the  Department of Physics at Imperial Collge is Joanna Haigh, (who I thought was the first to occupy such a position until corrected by the comment below) so there are signs that career prospects are improving for female physicists, but progress is painfully slow. The first ever female Professor of Physics in the United Kingdom was Daphne Jackson, a nuclear physicist, who took up her Chair at the University of Surrey way back in 1971. It’s interesting to note that when Daphne Jackson studied physics as an undergraduate at Imperial College she was one of only two women among the 88 undergraduates in her year.

I don’t personally think that there’s a significant gender bias when it comes to the consideration of promotion cases at the University of Sussex (or at any other institution I’ve worked at), but there’s plenty of anecdotal evidence that women are much more reluctant than men to put themselves forward for consideration at any level. I hope that recent successes in MPS, such as Antonella’s Professorship and Readerships for astronomer Kathy Romer and mathematician Vanessa Styles, will provide the necessary encouragement.

A Bit of Simon Fanshawe

Posted in Biographical, Brighton, Politics with tags , , , , on June 30, 2013 by telescoper

27On Friday I attended a very interesting event on the University of Sussex campus. This was arranged to mark the forthcoming end of the term of office of the current Chair of Council of the University of Sussex, Simon Fanshawe (left). Simon Fanshawe OBE is, of course,  a well-known radio and TV broadcaster, award-winning comedian and co-founder of the campaigning organization Stonewall. He also has an interesting taste in suits, and provided evidence of that in his outfit on Friday. But enough of matters sartorial. Simon has been Chair of Council for six years, and served as a member of Council for as many years before that, so really has contributed a huge amount to the University over that period. I think it’s safe to say that he has had a much higher profile in his role as Chair than most of his counterparts in other UK universities, so the idea of having a special event in his honour was thoroughly well justified.

First we had a series of three short lectures by Sussex on various issues relating to equality and diversity and how their relate to power and governance. More specifically these were talks about female islamic religious leaders, the nature of political corruption and attitudes to it in different countries, and a particularly fascinating talk by Robert Livingston that touched on many things, including how facial features seem to correlate with success in leadership positions.

After that there was a wine reception and a nice dinner with lots of stimulating conversation. For some reason a major topic on my table was bell-ringing, and why English church bells sound so different from those in continental Europe. I wrote some stuff about that years ago, while I was teaching probability, and may blog about it in future. Everyone else seemed to head home via taxi after dinner, but I wobbled off to the bus stop and got the trusty No. 23 back to Kemptown.

Anyway, I may post later on about some things that popped into my mind as a result of the talks and the subsequent discussion and conversation but for the time being I’ll just mention a very tenuous link with Simon Fanshawe that involves taking a little trip down memory lane. The picture below was taken in either 1988 or 1989 (I’m not very good at dates). It shows me and my partner at the time, Roger, preparing to act as volunteer waiters at a fund-raising dinner (somewhere in Lewes if I remember correctly) organized by the Communist Party of Great Britain:

Marxism_today

I wasn’t involved very much in campus politics when I was a graduate student at Sussex (from 1985 to 1988) or a postdoctoral researcher (1988-90) because I found most of it depressingly puerile and short-sighted, that being especially true of the sizable lunatic fringe which also had a disagreeable taste for mindless vandalism. Sadly, times haven’t changed in that respect. I did, however, during that time become an avid reader of magazine called Marxism Today which I thought contained the most incisive political writing of the time and which therefore prompted me to join the CPGB, and eventually became Branch Secretary until I left for London in 1990. Incidentally the Cee-Pee-Gee-Bee decided to dissolve itself as a political party in 1991 and became a sort of leftist think-tank called Democratic Left.

Anyway, the point about that photograph is that the after-dinner speaker on that occasion was none other than Simon Fanshawe, although I doubt if he remembers!

I see the boys of summer

Posted in Poetry with tags , , on June 29, 2013 by telescoper

I

I see the boys of summer in their ruin
Lay the gold tithings barren,
Setting no store by harvest, freeze the soils;
There in their heat the winter floods
Of frozen loves they fetch their girls,
And drown the cargoed apples in their tides.

These boys of light are curdlers in their folly,
Sour the boiling honey;
The jacks of frost they finger in the hives;
There in the sun the frigid threads
Of doubt and dark they feed their nerves;
The signal moon is zero in their voids.

I see the summer children in their mothers
Split up the brawned womb’s weathers,
Divide the night and day with fairy thumbs;
There in the deep with quartered shades
Of sun and moon they paint their dams
As sunlight paints the shelling of their heads.

I see that from these boys shall men of nothing
Stature by seedy shifting,
Or lame the air with leaping from its heats;
There from their hearts the dogdayed pulse
Of love and light bursts in their throats.
O see the pulse of summer in the ice.

II

But seasons must be challenged or they totter
Into a chiming quarter
Where, punctual as death, we ring the stars;
There, in his night, the black-tongued bells
The sleepy man of winter pulls,
Nor blows back moon-and-midnight as she blows.

We are the dark deniers let us summon
Death from a summer woman,
A muscling life from lovers in their cramp
From the fair dead who flush the sea
The bright-eyed worm on Davy’s lamp
And from the planted womb the man of straw.

We summer boys in this four-winded spinning,
Green of the seaweeds’ iron,
Hold up the noisy sea and drop her birds,
Pick the world’s ball of wave and froth
To choke the deserts with her tides,
And comb the county gardens for a wreath.

In spring we cross our foreheads with the holly,
Heigh ho the blood and berry,
And nail the merry squires to the trees;
Here love’s damp muscle dries and dies
Here break a kiss in no love’s quarry,
O see the poles of promise in the boys.

III

I see you boys of summer in your ruin.
Man in his maggot’s barren.
And boys are full and foreign to the pouch.
I am the man your father was.
We are the sons of flint and pitch.
O see the poles are kissing as they cross.

by Dylan Thomas (1914-1953)

Punch and Judy meet Quantum Technology

Posted in The Universe and Stuff with tags , , , , , , on June 28, 2013 by telescoper

It’s an Open Day here on campus, and there’s quite a crowd of potential students and parents gathering in the School of Mathematical and Physical Sciences here at the University of Sussex to find out a bit more about the School in advance of making decisions about where to apply next year.

I noticed the other day that quite a few of these have appeared on campus over the last few days:

IMG-20130627-00139

Apparently they’re information points manned by various helpers to help visitors find their way around the place. When I first saw this one, I thought it was a Punch and Judy box, so assumed that there was some sort of conference of Punch and Judy performers going on. That wouldn’t be inappropriate for a University campus, actually, because the traditional name for a Punch & Judy puppeteer is a “Professor”. Not a lot of people know that.

Anyway, none of that is really relevant to what I wanted to post today. I stumbled across this video featuring Winfried Hensinger (one of my colleagues from the Department of Physics & Astronomy within the School of Mathematical and Physical Sciences). I thought it would be fun to share it here, just to give an idea of some of the work that’s going on here outside my own speciality of astrophysics. I hope this will complement the real open day with a mini virtual open day on the blog.

Winfried is Reader in Quantum, Atomic and Optical Physics at the University of Sussex and he works in the group we generally call “AMO” (Atomic, Molecular and Optical). In this TEDX lecture he talks about the future of quantum computers and the role the team he is part of, at Sussex University, plays as they develop large scale quantum computers using ions cooled to extremely low temperatures using lasers. Enjoy!