Archive for the Uncategorized Category

Posted in Uncategorized on January 23, 2012 by telescoper

I see that the Academic Journal Racket also applies to mathematics! I also see that WordPress has reinstated the “reblog” feature!

gowers's avatarGowers's Weblog

The Dutch publisher Elsevier publishes many of the world’s best known mathematics journals, including Advances in Mathematics, Comptes Rendus, Discrete Mathematics, The European Journal of Combinatorics, Historia Mathematica, Journal of Algebra, Journal of Approximation Theory, Journal of Combinatorics Series A, Journal of Functional Analysis, Journal of Geometry and Physics, Journal of Mathematical Analysis and Applications, Journal of Number Theory, Topology, and Topology and its Applications. For many years, it has also been heavily criticized for its business practices. Let me briefly summarize these criticisms.

1. It charges very high prices — so far above the average that it seems quite extraordinary that they can get away with it.

2. One method that they have for getting away with it is a practice known as “bundling”, where instead of giving libraries the choice of which journals they want to subscribe to, they offer them the choice between a large collection of…

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Serious Brain Power – a reminder!

Posted in Uncategorized with tags on January 22, 2012 by telescoper

I’ve posted already about this initiative, but there’s no harm doing a bit of re-advertising on behalf of Cardiff University’s new recruitment campaign which has the slogan Serious Brain Power.  A major initiative is under way to attract high quality researchers to Cardff (either at Chair level for established academics or at the level of a Fellowship for those earlier in their careers)  across a range of academic disciplines, including STEM subjects.

In the School of Physics & Astronomy we’ve already appointed four new lecturers in Physics over the last year, and will also be joined by a new Professor of Experimental Physics next year, all independently of this scheme, but it would be great if we could attract even more excellent new people into the School via the new initiative; for an advert see here.

At fellowship level the positions  provide a greater degree of independence than a normal postdoctoral research assistantship, including the possibility to direct one’s own research programme. The number of  similar positions funded by research councils  is  dwindling owing to cutbacks in the research council budgets, making such a post a particularly valuable and attractive proposition.

Although this is a personal blog, and therefore not officially part of the recruitment campaign, it occurred to me that readers of this blog might well be interested in these opportunities, hence the reason for posting this message. Applicants for astronomy and cosmology would be welcomed,  by me at any rate! It’s a rare opportunity to join a Physics department that’s actually growing in size…

To find out more about the Fellowships and Chairs, see here. Feel free to contact me informally if you have any questions, and  please also feel free to pass this on to anyone you think might be interested!

Warning: This Blog is X-rated!

Posted in Uncategorized with tags , , , , on January 19, 2012 by telescoper

Most of you will have noticed that many important websites (including wikipedia) were offline yesterday in protest against SOPA (Stop Online Piracy Act) and PIPA (Protect Intellectual Property Act), two devices specifically designed to prevent the sharing of material via the internet. I’m among the many that think these acts are at best misguided and at worst downright sinister; see, e.g. here. They are probably also just the start of long battle to defend freedom of speech on the internet more generally. Those pushing ahead this repressive agenda are those with most to gain by controlling public access to information and most likely to want to write new laws to in order to avoid being held to account for violation of old ones. In other words, politicians.

Anyway, I recently discovered that I’ve become a victim of internet censorship myself. Apparently if you try to read this blog through some mobile internet connections a thing called Orange Safeguard pops up and tells you that this blog is only suitable to those aged 18 and over. If you can’t prove your age, access to the site is blocked.

Amused and, I have to say, slightly perturbed by this development, I went to the Orange site and found a list of reasons why a site might be X-rated. Here it is:

Anonymizers: These sites allow you to browse the Internet and access content anonymously.

Anorexia – Bulimia: Promoting and instigating eating disorders.

Gambling: Access to online gambling such as casinos and any other online services that let you place bets.

Chat: Where you chat in real time to people you don’t know.

Bombs: Explaining how to prepare, make, build and use explosives and explosive devices.

Dating: Websites for match-making where the user can meet other people – make friends, find a partner, etc.

Forums: Where you’re invited to take part in discussions on predetermined topics with people you don’t know.

Pornography: Websites with a pornographic or sexual content.

Racism: Sites promoting racist behaviour based on culture, race, religion, ideology, etc.

Sects: Websites on universally acknowledged sects. Within this category URLs are included on organizations that promote directly or indirectly: (i) group, animal or individual injuries, (ii) esoteric practices, (iii) content that sets a bad example for young children: that teaches or encourages children to perform harmful acts or imitate dangerous behaviour, (iv) content that creates feelings of fear, intimidation, horror, or psychological terror, (v) Incitement or depiction of harm against any individual or group based on gender, sexual orientation, ethnic, religious or national identity.

Violence: Containing openly violent content and/or that promote violence or defend it.

I’m not sure which of these I’ve fallen foul of. Is cosmology a sect? Or do the physics problems I’ve posted induce psychological terror? Who decided that this blog is for adults-only, and why? I’ve never been informed, although I have written to Orange in order to request this information…

..and that leads to the important question behind this amusing state of affairs. Who decides? Once we allow censorship to become commonplace, someone has to decide who can see what. That gives them, whoever they may be, far too much power.

If someone finds something I put on here offensive, they should have to tell me and explain why, not just arbitrarily terminate access. It’s the start of a journey that will take us into a very dark place indeed.

And another question. By blocking my blog, Orange Mobile is implying that it contains material belonging to the categories listed above. I don’t think it does. So can I sue Orange Mobile for libel?

2011 in review

Posted in Uncategorized on January 1, 2012 by telescoper

The WordPress.com stats helper monkeys prepared a 2011 annual report for this blog.

Here’s an excerpt:

London Olympic Stadium holds 80,000 people. This blog was viewed about 360,000 times in 2011. If it were competing at London Olympic Stadium, it would take about 5 sold-out events for that many people to see it.

Click here to see the complete report.

Blwyddyn Newydd Dda!

Posted in Uncategorized on January 1, 2012 by telescoper

I’ve tried set this to appear just as the New Year comes in while I am out and about enjoying the revels. I hope I’ve set the WordPress scheduler correctly. I don’t think I’ll be in a fit state to fix it if not!

I’d just like to say thank you to everyone who has followed this blog over the last year, especially those who have commented on it either on the site or by private communication.

I wish you all a very Happy New Year and a 2012 that is full of Good Things.

Happy New Year!

…for those of you who couldn’t translate the title.

Back from the North

Posted in Uncategorized with tags on December 28, 2011 by telescoper

After a nice Christmas break back in my home town of Newcastle I’m now back to Cardiff. The weather was a bit of a contrast after last year’s snow and ice, as it was unusually mild in the North East this year although a bit dark and blustery. I travelled there and back by train too, without any significant hitches either way, arriving on time on both journeys. It was a very restful holiday for me – which is just what I needed, if truth be told.

On boxing day we took a drive through the beautiful countryside of Northumberland where, as usual the winter weather produced some dramatic lighting effects. Although I only had my Blackberry with me I managed to get a snap of Warkworth Castle, which came out quite well, the castle looking brooding against the setting sun:


And a bit later on, over the moors, the wind clouds and sunbeams produced some ominous-looking patterns, which the little phone camera struggled to capture…

The portents turned out to be inaccurate, however, as Newcastle United managed to win their Boxing Day fixture, away against Bolton Wanderers, a team from the Midlands.

Anyway, I hope you all had as pleasant a festive period as I did. Now it’s all about preparing for the new year and new teaching term, and of course blogging will resume!

The Fall of the House of Usher

Posted in Uncategorized with tags , , , on December 17, 2011 by telescoper

It’s a strange tradition that the Christmas season tends to bring with it an appetite for ghost  stories and other tales of supernatural horror. It’s probably a reflection of a much earlier age when the winter was a harsh and dangerous time, during which food was scarce and survival through the winter meant huddling around a fire trying to stay warm. It seems natural to me that the kind of stories that would be told in such an environment would be of fear and foreboding. It’s not really a Christian tradition, therefore, but the legacy of a much older pagan one. Like Christmas itself, as a matter of fact.

Anyway, a few days ago at our little cosmology group Christmas night out the subject of horror films came up.  I’ve never been a particular aficianado of this genre, and I’m afraid most modern horror films are so formulaic that they bore me to tears. I do enjoy the classics enormously, however. James Whale’s 1931 Frankenstein, for example,  has to my mind never been bettered; a great film turned into a masterpiece by an unforgettably moving  performance by Boris Karloff. I think that’s a wonderful film, but I have to say I never found it particularly frightening, even as a child.

The first film I remember seeing that really terrified me was Roger Corman’s The Fall of the House of Usher starring the inimitable Vincent Price, a film based on a short story by Edgar Allan Poe. When I was around 8 or 9 I was once  left home alone on a Friday night by my parents. In those days the BBC used to show horror films late at night on Fridays and, against parental guidance, I decided to watch this one. It scared me witless and when my parents got home they found me a gibbering wreck. I don’t really know why I found it so scary – younger people reared on a diet of slasher movies probably find it very tame, as you don’t actually see anything particularly shocking – but the whole atmosphere of it really got to me. Here’s an example.

This reminds me that I need to get some replastering done in the new year….

Anyway, I’d be interested in hearing other suggestions for the most scariest film through the Comments box…

Citation-weighted Wordles

Posted in Uncategorized with tags , , , , on December 12, 2011 by telescoper

Someone who clearly has too much time on his hands emailed me this morning with the results of an in-depth investigation into trends in the titles of highly cited astronomy papers from the past 30 years, and how this reflects the changing ‘hot-topics’.

The procedure adopted was to query ADS for the top 100 cited papers in three ten-year intervals: 1980-1990, 1990-2000, and 2000-2010. He then took all the words from the titles of these papers and weighted them according to the sum of the number of citations of all the articles that word appears in… so if the word ‘galaxy’ appears in two papers with citations of 100 and 300, it gets a weighting of 400, and so-on.

After getting these lists, he used the online ‘Wordle‘ tool
to generate word-clouds of these words, using those citation weightings in the word-sizing calculation. Common words, numbers, etc. are excluded. There may be some cases where non-astronomy papers have crept in, but as much as possible is done to keep these to a minimum.

There’s probably some bias, since older papers have longer to accumulate citations, but the changing hot-topics on ~10 year time-scales take care of this I think.

Anyway, here are the rather interesting results. First is 1980-1990

Followed by 1990-2000

and, lastly, we have 2000-2010

It’s especially interesting to see the extent to which cosmology has elbowed all the other less interesting stuff out of the way…and how the word “observations” has come to the fore in the last decade.

ps. Here’s the last one again with the WMAP papers taken out:

The Business End

Posted in Uncategorized with tags , , on December 9, 2011 by telescoper

Over a year ago I blogged about an event I attended, along with some students and staff from the School of Physics & Astronomy at Cardiff University, at Cardiff Business Club. Iwas reminded of it earlier today and found that some pictures of the evening have been posted so thought I’d include them here for a laugh.

First, here’s me (on the right) next to Welsh rugby legend Gerald Davies and the speaker for the evening, Dr Lyndon Evans.

Here, all looking very glamorous, are (left to right) Dr Carole Tucker, Sarah Gossan, Flo Liggins and Patricia Murphy:

The chaps are three from the School – Dr Ken Wood, Matthew McCreadie, and Matthew Barcia Gomes – and Gareth Hall.

And – oh dear – this is me giving my little speech:

Oops!

Posted in Uncategorized on December 8, 2011 by telescoper

Q: What happens when the wind is too windy for a wind turbine?

A: