Archive for the Books, Talks and Reviews Category

Cape Town Connections

Posted in Biographical, Books, Talks and Reviews on April 4, 2012 by telescoper

Now I’m properly online and reconnected to the blogosphere. The problems I had yesterday turned out to be quite easy to resolve once I spoke to a competent person.

I’m staying here on the delightful campus of the University of Cape Town, where I’m visiting George Ellis and other cosmologists here with a view to setting up a collaborative project with them. The last time I was here was in 1995, and I came here to put the finishing touches to a book George and I wrote. At that time I don’t think there was much of an internet connection at all, so I had no distractions from the task in hand. Except, that is, for the Rugby World Cup which took place in South Africa at the same time. Which was not, if I’m being honest, a coincidence. I even managed to get a ticket for the semi-final between England and New Zealand which was held just down the road at Newlands and saw Jonah Lomu running amok as England got thrashed. New Zealand went on to lose to hosts South Africa in a tense final and the celebrations afterwards were something I’ll remember for a long time!

That was all during June/July, which is winter time here. Now it’s April. Technically speaking this is autumn, but the weather is sunny and warm although there are stiff breezes and scudding clouds. Not unusually, Table Mountain is wearing a white fluffy crown, as you can see from this picture I took this morning from the base of the stairs leading up towards the Jameson Memorial Hall and, to the right, the Mathematics department at UCT:

I realised yesterday that I’m staying in exactly the same flat (one of five at the UCT residence called Kopano), a short walk down the hill (or a long walk up it) from the guest office they’ve provided. When I started to walk up yesterday morning the memory of the route came back, apart from one or two new buildings which have inconveniently appeared on the way. I’m reassured that I still have some functioning memory cells!

Another connection I have with Cape Town is that my former PhD student Rockhee Sung has a PDRA position here. I’m looking forward to catching up with her again, although she’s not here at the moment owing to here having to sort out some problems with visas, etc.

Anyway, I have to give a talk tomorrow and since I’m going out for dinner tonight I had better prepare it this afternoon.

P.S. My commiserations to those of you back in Blighty who are shivering as the recent warm spell has been decisively ended by a cold snap, complete with snow. It seems I left at exactly the right time!

 

Web Life

Posted in Biographical, Books, Talks and Reviews with tags , , on March 31, 2012 by telescoper

Pure vanity drove me to post this screenshot of a nice write-up of this blog that appears in this month’s Physics World. You can read the whole edition online here if you have a subscription, but if you click on the image it’s more-or-less legible. They’ve written very nice things about In the Dark,  so hope I don’t get into trouble with their copyright enforcers by posting this…

Hawking at 70

Posted in Books, Talks and Reviews, The Universe and Stuff with tags , , , , on January 8, 2012 by telescoper

Today is the 70th Birthday of renowned British theoretical physicist Stephen Hawking. His  immense contributions to physics, including but not restricted to cosmology, are remarkable in their own right, but  made even more emarkable that has done so much after having been stricken by such a debilitating disease when he was only in his twenties. Hawking’s is undoubtedly a brilliant and inspirational mind, but his courage and physical endurance in the face of difficulties that  others might have found unbearable provide inspiration far behond physics. I’d therefore like to add a genuine Many Happy Returns to Professor Stephen Hawking, and I hope he’s enjoying the celebratory conference and other events that have been laid on to mark this special occasion.

I have in the past gone on record, both on television and in print, as being not entirely positive about the “cult” that surrounds Stephen Hawking. I think a number of my colleagues find things I have said disrespectful and/or churlish. I do, however, stand by everything I’ve said. I do have enormous respect for Hawking the physicist, as well as deep admiration for his tenacity and fortitude, and have never said otherwise. I don’t, however, agree that Hawking is in the same category of revolutionary thinkers as Newton or Einstein, which is how he is often portrayed.

In fact  a poll of 100 theoretical physicists in 1999 came to exactly the same conclusion. The top ten in that list were:

  1.  Albert Einstein
  2. Isaac Newton
  3. James Clerk Maxwell
  4. Niels Bohr
  5. Werner Heisenberg
  6. Galileo Galilei
  7. Richard Feynman
  8. Paul Dirac
  9. Erwin Schrödinger
  10. Ernest Rutherford

The idea of a league table like this is of course a bit silly, but it does at least give some insight into the way physicists regard prominent figures in their subject. Hawking came way down the list, in fact, in 300th (equal) place. I don’t think it is disrespectful to Hawking to point this out. I’m not saying he isn’t a brilliant physicist. I’m just saying that there are a great many other brilliant physicists that no one outside physics has ever heard of.

It is interesting to speculate what would have happened if the list had been restricted to living physicists. I’d guess Hawking would be in the top ten, but I’m not at all sure where…

And before I get accused of jealousy about Stephen Hawking’s fame, let me make it absolutely clear that if Hawking is like a top Premiership footballer (which I think is an appropriate analogy), then I am definitely like someone kicking a ball around for a pub team on a Sunday morning (with a hangover). This gulf does not make me envious; it just makes me admire his ability all the more, just as trying to play football makes one realise exactly how good the top players really are.

Anyway, I had better wind this up because that sporting metaphor has just reminded me that there are some FA Cup ties on the TV this afternoon. I’ll therefore switch to a slightly different kind of hawking, i.e. trying to peddle a few copies of my book  Hawking and the Mind of God, which was published in 2000. Excuse the blatant self-promotion, but these are hard times!

Here is the jacket blurb:

Stephen Hawking has achieved a unique position in contemporary culture, combining eminence in the rarefied world of theoretical physics with the popular fame usually reserved for film stars and rock musicians. Yet Hawking’s technical work is so challenging, both in its conceptual scope and in its mathematical detail, that proper understanding of its significance lies beyond the grasp of all but a few specialists. How, then, did Hawking-the-scientist become Hawking-the-icon? Hawking’s theories often take him into the intellectual territory that has traditionally been the province of religion rather than science. He acknowledges this explicitly in the closing sentence of his bestseller, “A Brief History of Time”, where he says that his ultimate aim is the “know the Mind of God”. “Hawking and the Mind of God” examines the pseudo-religious connotations of some of the key themes in Hawking’s work, and how these shed light not only on the Hawking cult itself, but also on the wider issue of how scientists represent themselves in the media.

And you can take a peek at the inside here:

Cosmology: A Very Short Introduction, now in Kindle Edition

Posted in Books, Talks and Reviews with tags , , on December 30, 2011 by telescoper

Time, I feel, for a bit of gratuitous self-publicity.

I got a very nice piece of news just before Christmas which is that my little book Cosmology: A Very Short Introduction has now sold over 25,000 copies worldwide. I never thought it would sell so well but I’m very happy with the positive reactions it has received. The book was written in 2001 so it’s a little out of date now, because cosmology has moved on quite a bit in the last decade. I don’t think the publishers want to do a new edition, so there’s not much I can do about updating it. I am however, almost finished with a new book which covers some of the more recent advances in the field.

In the spirit of self-promotion, here is one of the nice reviews on amazon from someone who is obviously extremely perceptive:

This is a truly excellent introduction to cosmology for specialist and non-specialist alike. It is non-mathematical and so may be read by anyone, but the overall cover is so good, in my opinion, that it would prove an ideal first read for both undergraduates and postgraduates. All the main topics are covered; the big problems facing us are all highlighted, but what makes this book stand out is the total lack of arrogance displayed by the author. When dealing with something which is not established fact, he gives his opinion but makes it absolutely clear that it is just that – his opinion! This is in marked contrast to the attitude displayed in most texts and is certainly contrary to the policy adopted by some popular scientific journals, which seem to establish a sort of ‘perceived conventional wisdom’ and refuse to publish anything which disagrees with that so-called wisdom. This book will certainly not lead the interested amateur astray, but will present both facts and theories and leave the reader to make up his own mind over matters which are still open to question.
I would urge anyone with an interest in cosmology to buy this book and read it . However, be warned; physically it is a little book but, to gain the maximum from reading it, it is definitely not a quick read! Read it, digest it and enjoy! It really is worth the effort!

Anyway, another thing worth mentioning is that this book is now available as a Kindle Edition. So if you got one of those for Christmas and are looking for things to put on it please consider Cosmology: A Very Short Introduction!

ps. I don’t have a Kindle myself. I did try one, but completely failed to get the fire started with it.

Remembered Heroes

Posted in Books, Talks and Reviews, Cricket, History with tags , on November 13, 2011 by telescoper

Two things have come up recently that I’d like to mention here. They’re both, in their different ways, about heroes, but the remembrance that’s called for is different to that normally observed on this day.

First, I couldn’t resist passing on a link to a short but intensely moving piece by Alan Garner in yesterday’s Guardian about Alan Turing, in the My Hero series.

I suppose most readers of this blog will know of Turing’s pioneering work on computer science and his crucial contribution to the war effort in cracking the German Enigma codes. I also suppose most know about the circumstances of his death; he took is own life in 1954 after being forced to endure a form of chemical castration after being found guilty of homosexuality, in case you didn’t already know. Many of you will also have read some (or in my case many) of the various books about his life and work. (If not I recommend Andrew Hodges’ excellent The Enigma of Intelligence, which I read when I was an undergraduate, over 25 years ago.)

But what those of us who never met Alan Turing will never know is what he was really like as a man, and that is why pieces like the one by Alan Garner are so moving. Turing comes across as eccentric (I think we all know what was the case), but also as a very amusing character who was excellent company and a bit of a chatterbox, despite suffering from a stammer. The circumstances of his arrest and subsequent conviction for the “crime” of being gay also confirm the impression that he had an almost childlike innocence about the world outside academe. In other words, he was a very easy target. We like to think we live in more enlightened times nowadays – and I suppose in many ways we do – but I think Alan Turing would be as much, or even more of, a misfit in today’s world than he was in the 1950s. Although he was undoubtedly a genius, he rarely bothered to publish academic papers so I dread to think how he would fare in the present university system!

Anyway, I’d just like to say thank you to Alan Garner (who knew Turing well as a friend) for sharing his thoughts and experiences. I may have never met Alan Turing, but he’s my hero too…

And that brings me to another sad story. I only learned this morning that former cricketer Peter Roebuck died yesterday, at the age of 55, having taken his own life in a hotel room in Cape Town. Peter Roebuck always seemed to me an unlikely figure for a sportsman, with his spectacles, cerebral air, and rather stooped gait he looked more like an academic than an athlete, but he was a fine cricketer. I remember him very well from the time I was a schoolboy mad keen about cricket, and I liked him particularly because he wasn’t – or didn’t seem to be – someone blessed with prodigious natural skill. He made it in the professional game because he worked hard. People like that are always heroes to those, like me, who love sport but don’t have any innate talent for it.

After retiring from cricket Roebuck went to live in Australia and took up a career as writer and commentator on the sport, a role at which he excelled, as much for his lucid prose as for his deep technical knowledge. Although he mainly covered Australian cricket, I often read his articles and admired his writing enormously. I have no idea what caused him to commit suicide, and I wouldn’t wish to speculate about that, let alone presume to judge. All I can say is that it’s the saddest thing when someone takes their own life, whatever the circumstances.

UPDTATE: 14/11/2011 There’s a lot of traffic coming to this post via Google searches of “Was Peter Roebuck gay” or suchlike. I have no idea whether he was or wasn’t and I’m not going to indulge in gossip, so I’m afraid that if that’s the reason you’re here you’re going to be disappointed.

Rest in peace, Peter Roebuck.

 

“Cosmic Anomalies” Talk, Copenhagen, August 2011

Posted in Art, Books, Talks and Reviews, Cosmic Anomalies, The Universe and Stuff with tags , , on August 31, 2011 by telescoper

I think I’m getting the hang of this slideshare malarky so I thought I’d try it out by posting the slides I used for my (short) talk at the workshop in Copenhagen I told you about two or three weeks ago. I’m not sure how useful they will be to anyone, as I suppose it will be quite hard to reconstruct the talk using only the small amount of information I bother to put on the slides..

If you’re wondering about the presence of various apparently random works of art then what can I say? I like paintings!

Auditorium A

Posted in Biographical, Books, Talks and Reviews with tags , , , , , on June 8, 2011 by telescoper

Just back from a splendidly wine-laden workshop dinner, I thought I’d do a quick post. My talk was moved to this morning, instead of the scheduled slot in the afternoon I think it went OK considering that, in the spirit of a small informal workshop, I talked mainly about work in progess…

That’s the whiteboard in my office in Cardiff, by the way, not my talk this morning. Auditorium A has good old-fashioned blackboards.

An advantage of speaking in the morning was that after it was over I was able to relax with a beer at lunchtime, but in the warm weather that made it rather difficult to stay on the ball afterwards. I’ve lost track of the amount of time I’ve spent sitting (or even speaking) in the famous Auditorium A of the Niels Bohr Institute over the years, actually, but I don’t think I’ve ever taken a picture there, so here’s one.

On the extreme left you can see our genial host Pavel Naselsky; in the centre left with blue shirt and grey hair, pretending not to be asleep, is Leonid Grishchuk; beside him to the right is Subir Sarkar and next to him,  more-or-less hidden from view, is Holger Bech Nielsen who travelled backwards in time especially to attend the workshop. The knee in the foreground remains unattributed.

Here is an “official” workshop photograph, taken while the participants were looking a bit more awake, but before quite a few had made it back from lunch..

Guest Post – Bayesian Book Review

Posted in Bad Statistics, Books, Talks and Reviews with tags , , , on May 30, 2011 by telescoper

My regular commenter Anton circulated this book review by email yesterday and it stimulated quite a lot of reaction. I haven’t read the book myself, but I thought it would be fun to post his review on here to see whether it provokes similar responses. You can find the book on Amazon here (UK) or here ( USA). If you’re not completely au fait with Bayesian probability and the controversy around it, you might try reading one of my earlier posts about it, e.g. this one. I hope I can persuade some of the email commenters to upload their contributions through the box below!

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The Theory That Would Not Die: How Bayes’ Rule Cracked the Enigma Code, Hunted Down Russian Submarines, and Emerged Triumphant from Two Centuries of Controversy

by Sharon Bertsch Mcgrayne

I found reading this book, which is a history of Bayes’ theorem written for the layman, to be deeply frustrating. The author does not really understand what probability IS – which is the key to all cogent writing on the subject. She never mentions the sum and product rules, or that Bayes’ theorem is an easy consequence of them. She notes, correctly, that Bayesian methods or something equivalent to them have been rediscovered advantageously again and again in an amazing variety of practical applications, and says that this is because they are pragmatically better than frequentist sampling theory – ie, she never asks the question: Why do they work better and what deeper rationale explains this? RT Cox is not mentioned. Ed Jaynes is mentioned only in passing as someone whose Bayesian fervour supposedly put people off.

The author is correct that computer applications have catalysed the Bayesian revolution, but in the pages on image processing and other general inverse problems (p218-21) she manages to miss the key work through the 1980s of Steve Gull and John Skilling, and you will not find “Maximum entropy” in the index. She does get the key role of Markov Chain Monte Carlo methods in computer implementation of Bayesian methods, however. But I can’t find Dave Mackay either, who deserves to be in the relevant section about modern applications.

On the other hand, as a historian of Bayesianism from Bayes himself to about 1960, she is full of superb anecdotes and information about
people who are to us merely names on the top of papers, or whose personalities are mentioned tantalisingly briefly in Jaynes’ writing.
For this material alone I recommend the book to Bayesians of our sort and am glad that I bought it.

A review of my attempt at stand-up

Posted in Books, Talks and Reviews with tags , on May 8, 2011 by telescoper

It seems my 12-minute stab at being a comedian at Bright Club Wales has led me to the dizzy heights of fame. So much so that I’ve even appeared in the latest issue of Cardiff University News (which you can read online here). Here’s the piece, though you might need to click on it to make it big enough to read..

Incidentally, the next Bright Club Wales will be on Monday 30th May, at the Buffalo Bar in Cardiff. I’m sure it will be fun!

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Bright Club

Posted in Biographical, Books, Talks and Reviews, The Universe and Stuff with tags , , , on March 14, 2011 by telescoper

Hardly any time to breathe today, never mind post anything. Lectures, and exercise class and a meeting of the lost souls attempting to figure out what we should do to prefer for the Research Excellence Framework.

Now all that’s over I’m going to think about what I should do on stage this evening as I participate in the Second Bright Club Wales, at the Buffalo Bar in Cardiff City Centre. Apparently, this event “blends comedy, science, music and anything else that can happen on stage” which certainly leaves a lot to the imagination.

This evening is part of National Science and Engineering Week. In fact, there’s another event this evening in Cardiff tonight relating to this, comprising a public lecture at the School of Physics & Astronomy followed by an open evening allowing members of the public to use our telescopes. The weather has been lovely today, but clouds are starting to appear. I hope there’s enough clear sky to make it worthwhile.

I’m actually quite nervous about this Bright Club lark,  as I’m not at all sure what to expect, but apparently I’ll be on fairly early in the evening so with a bit of luck the room won’t be too rowdy and I might not get pelted with rotten tomatoes. I don’t really know to what extent I’m expected to play it for laughs either. I sometimes try to tell jokes in lectures, but they usually go down like  lead balloons, so perhaps I’ll just stick to some science and leave the funny stuff to the professional comedians. I’ve only got 8 minutes, but that’s plenty of time to make a fool of myself.

Between you and me, I have actually tried doing stand-up comedy once or twice. In fact, the most terrifying experience of my life was doing an open-mike spot at a Comedy Club in Cambridge Heath Road, when I lived in Bethnal Green. It’s one thing to try to be amusing in a pub or around the dinner table with friends, but quite another when you’re trying to make complete strangers laugh, especially when they’ve paid for it! Anyway, I survived my 3 minutes (just about) and even got a few laughs, but the experience didn’t make me want to quit my day job.

Anyway, I asked for an early shift so I could get home on time to deal with Columbo’s needs so I’ll update this post later on with a review of my performance. Or lack of it.

UPDATE: 10pm. Well, it turned out to be good fun. The audience was friendly and I got a few laughs. Although I didn’t really prepare very much materia,l and I was first one up so didn’t have a chance to see what went down well, I found it quite easy to make it up as I went along, given such a relaxed atmosphere. A couple of pints of Guinness probably helped too. Had to leave after the first half to see to Columbo, but I hope the rest of the evening went well.


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