Mingus – Oh Yeah!

Posted in Jazz, The Universe and Stuff with tags , , , , , on January 10, 2013 by telescoper

I noticed a news item this morning which explains that the Supernova Cosmology Project have found a supernova with a redshift of 1.71, which makes it the most distant one found so far  (about 10 billion light-years away).  That – and hopefully others at similar distances – should prove immensely useful  for working out how the expansion rate of the Universe has changed over its history and hence yield important clues about the nature of its contents, particularly the mysterious dark energy.

Of particular relevance to this blog is the name given to this supernova, Mingus, after the jazz musician and composer Charles Mingus. Both the discovery and the great choice of name are grounds for celebration, so here’s one of my favourite Mingus tracks – the delightfully carefree and exuberant Eat that Chicken, from the Album Oh Yeah. Enjoy!

My Little Sun

Posted in Art, Biographical with tags , , on January 9, 2013 by telescoper

I’m so excited to have won something other than a dictionary for a change!

I’ve just received delivery of the Little Sun that I was promised after entering a little competition on Twitter. It’s a solar-powered light that charges during daylight hours to provide a bright safe source of illumination at night. “Little Sun transforms the light that is for all of us into light that is for each of us…”

IMG-20130109-00034

This gives me an excuse to mention that later this month my contribution to the Charter of Light will go live on the website. Please follow the campaign, which aims to improve light and energy access in the developing world.

The canals of old Cardiff

Posted in Cardiff, History with tags , , , , on January 8, 2013 by telescoper

I came across this old map of Cardiff the other day and thought I’d post it to make up for the fact that I’ve not posted much about the local history of this fascinating city over the years.

Old_cardiff

I can’t find a date for the map, but I guess it is from the early 20th Century.

The most interesting thing about the map is the pretty extensive network of canals. The Dock Feeder Canal still runs down from the top of the map then turns East and past the North side of the Castle, and then South again towards Cardiff Bay. Some of its route is now underground, including the section that used to be Edward Terrace and Pembroke Terrace, which now form the two sides of Churchill Way  under which the canal still flows.

It’s worth mentioning in passing that most of the present Cardiff Castle is basically a late 19th Century folly, but it is the site of much older buildings, including a Norman Keep and a Roman fort. When the Romans occupied the location, the area from the Castle down to the sea was basically a swamp, flanked by the flood plain of the Taff to the West, with the salt marshes of Cardiff Bay to the South. Almost all of present-day Cardiff is reclaimed land.

The Dock Feeder Canal was constructed around 1840 in order to supply water to the Docks in Cardiff Bay so that they could be operated even when the tide was out. This gave  Cardiff one of the world’s first 24-hour docks and led to a rapid expansion of commerce and population in the city during the mid-19th Century.

Among the quite surprising facts about the City of Cardiff is its spectacular population growth. The first official census was held in 1801 and it  showed Cardiff to have a population of 1,870 – much smaller than other Welsh towns like Merthyr Tydfil (7,700) and Swansea (6,000). Every ten years another census was carried out, with the figures for Cardiff growing as follows:

1801 – 1,870
1811 – 2,457
1821 – 3,251
1831 – 6,187
1841 – 10,079
1851 – 18,351
1861 – no data
1871 – 57,363
1881 – no data
1891 – 128,915
1901 – 164,333
1911 – 182,259
1921 – 222,827
1931 – 226,937
1941 – no data
1951 – 243,632
1961 – 283,998
1971 – 293,220
1981 – 286,740
1991 – 296,900
2001 – 305,353

The expansion of the docks in Cardiff Bay, driven by the export of coal from the valleys, seems to have been the main factor in driving the population increase, and this accelerated markedly from the middle of the 19th century until the early 20th century.

Early on in the industrial revolution the South Wales valleys were primarily concerned with the production of iron. In February 1794, the 25-mile-long Glamorganshire Canal was opened between Cardiff and Merthyr Tydfil to bring iron products down to the coast and for nearly 50 years was unchallenged as the main transport link between the two towns.  It was later to become the primary route for carrying coal to the Bay. The Glamorganshire Canal can be seen on the map too, but has now virtually vanished, the route it used to follow now just being marked by new roads; for example, the route it used to take to the East of Bute Park is now covered by North Road.

Here is an old photograph of Mill Lane, now the site of a number of not-very-salubrious eating and drinking establishments. I suspect not many Cardiff residents know that less than half a century ago, these were canalside properties..

Mill_Lane

In October 1839, the Bute West Dock covering 19 acres with 9,400 feet of quays was opened, and the construction of the Dock Feeder to regulate the water supply to the dock from the River Taff was completed.  Entirely paid for by the second Marquis of Bute, this new dock set in motion Cardiff’s amazing growth to become the world’s biggest coal exporting port. The Taff Vale Railway was opened in 1841 between Cardiff and Abercynon and soon overtook the Glamorganshire Canal in economic importance. Coal shipments from Cardiff exceeded one million tons for the first time in 1851. In December 1855, the first historical trainload of Rhondda steam coal arrived at Cardiff, where the Bute East Dock was opened. By 1883 the docks handled six million tons of coal and by 1913 this figure had grown to a staggering 10.7 million tons.

Much of the labour needed to handle this volume of coal came from immigrants, including very large numbers of Irish but also lots of other people from all around the world. By 1850 there were no less than 20 foreign consulates in Cardiff and the city quickly established the cosmopolitan reputation it has kept to this day.

After the end of the First World War the coal trade suffered because the market was flooded with cheap German coal used for war reparations. That, and the subsequent depression, led to a decline in Cardiff as a port, although it was very busy during the Second World War. About 75 per cent of the supplies for the American forces in Europe were shipped out through Cardiff docks following the D-Day landings in June 1944.  This was a short-lived renaissance; the last ever shipment of coal left Bute Dock in 1950.

Other random but possibly interesting points about the map are:

  • The site of the modern Cardiff University School of Physics & Astronomy is near the top right of the map, marked “Univers. Coll.”
  • Taff Vale Railway Station is now named Queen Street Station, and Great Western Station is now Cardiff Central.
  • Note that Cardiff Arms Park was actually surrounded by parkland when this map was drawn, but now the area around is built up (and of course the Millennium Stadium is now there too).
  • Much of central Cardiff has been replaced by modern malls and the like, but the Central Market is still there.

Lost in Translation…

Posted in Biographical, Books, Talks and Reviews with tags on January 7, 2013 by telescoper

I was making a start at cleaning out some of the stuff in my office yesterday and came across a bunch of foreign editions of my book Cosmology: A Very Short Introduction. I’d forgotten I had these, and am not even certain what languages they are all in. Is the first in Japanese or Korean? I really can’t remember.

vsi_6

vsi_2

vsi_3

Vsi_5

vsi_4

…still, it’s interesting to see how they’ve chosen different covers for the different translations, and at least I know what my name looks like in Russian Bulgarian!

Sathya’s Cosmic Sirens

Posted in The Universe and Stuff, Uncategorized with tags , , , on January 7, 2013 by telescoper

Bit busy today so I thought I’d just post this talk by Cardiff’s own Prof. Bangalore Sathyaprakash at last year’s TEDX event in Cardiff.
The title is Cosmic Sirens although given that the topic is gravitational waves I hope that “sirens” isn’t intended to mean those entirely mythical entities that lure unsuspecting PhD students to their ultimate destruction…

Anyway, here’s the blurb:

In 1916 Einstein predicted that dynamical mass distribution generates ripples in the very fabric of spacetime that propagates outwards at the speed of light.

For over two decades B.S. Sathyaprakash (Sathya for his family and friends) is engaged in research to detect these ripples called gravitational waves, from cataclysmic cosmic events such as exploding stars, colliding black holes and the big bang. His personal goal is to observe and understand black holes and gravity using gravitational radiation. He is the head of the gravitational physics group at Cardiff University — a centre for modelling astronomical sources of gravitational radiation, discovering innovative algorithms to search for this radiation and analyzing data from gravitational-wave detectors using massive computer clusters.

Although there is firm indirect evidence that certain astronomical systems do emit gravitational waves, so far no one has detected them directly. Sathya and his team are part of a worldwide effort, called the LIGO Scientific Collaboration, to detect these elusive waves using kilometer long laser interferometers in the US, Europe and Japan. Recently, Sathya helped develop the science case for building such a detector in India. He has been involved in the European design study of a third generation underground detector with a 30 km baseline called the Einstein Telescope, chairing the group that developed the science case for this ambitious venture.

And here is the actual talk..

Me and my horn….

Posted in Biographical, Music with tags , , on January 6, 2013 by telescoper

How will I amuse myself when I’ve got no TV or internet connection?

Here’s the answer…

IMG-20130106-00029

..although I’m not sure the neighbours are going to be very happy about it!

Authentic Tidings of Invisible Things

Posted in Poetry, The Universe and Stuff with tags , , , , on January 5, 2013 by telescoper

One of my very first blog posts (from way back in 2008) was inspired by an old book of poems by William Wordsworth that I’ve had since I was a child. I was reading it again this evening and came across this short excerpt, near the end of the book, from The Excursion, and entitled for the purposes of the book The Universe a Shell. It struck me as having a message for anyone who works on the science of things either too big or too small to be sensed directly on a human scale, so I thought I’d post it.

I decided to scan it in rather than copy it from elsewhere on the net, as I really love the look of that old faded  typeface on the yellowing paper, even if it is a bit wonky because it went over two pages. I’ve been fond of Wordsworth for as long as I can remember and, like a few other things, that’s something I’ll never feel the need to apologize for…

Shell-a

Shell-b

Goodbye Virgin Media, and good riddance…

Posted in Biographical with tags , , , , on January 5, 2013 by telescoper

Virgin-Media-logo

With my move to Brighton imminent, I decided before Christmas to sort out a few things that I’ve been putting off for a while. One of them was to cancel the contract with Virgin Media at my house in Cardiff. Having made the decision to ditch them, I then received a letter from said company announcing that their “broadband” service would go up in price in February 2013 by almost 10%. That’s on top of a similar rise earlier in 2012. A price hike of 20% in a year is nothing short of a rip-off. I wouldn’t mind if the service was decent, but the broadband is particularly poor; I’m supposed to have a 20MB service but I rarely get even a tenth of that. I assume Virgin Media simply doesn’t have enough bandwith to deliver what it promises. And that’s not counting when the connection falls over completely, which is far from uncommon…

In 2012 Virgin Media announced that I was getting a “free” upgrade to 20MB – previously I had the cheapo 10MB service – which sounded great. Then, just over a month later, the cost of my broadband package went up by about 10%. That’s a clear misrepresentation, and I should have cancelled my account right away then. But for some reason I didn’t.

I also get a cable TV package from Virgin Media (which I very rarely watch). Cancelling that will probably mean I spend just a bit more time reading or listening to music, which is a good thing. The woeful state of TV generally, and the dire offerings available at Christmas in particular, make me confident that I can live quite happily without it. And I’ll save the license fee too. I also have a telephone land line which I hardly use either. So scrap it all, I thought.

Anyway, I picked up the phone and called Virgin Media on 8th December with the intention of cancelling my service. A very frustrating experience with automated responses followed. “You now have five options”, you know the sort of thing. After several sets of five options (none of which were to cancel my account), I got through to a vaguely humanoid life-form. Even that wasn’t the end of the story as instead of just following my request she asked dozens of irrelevant questions and tried to persuade me not to quit. In the end I got fed up and said “I’m not going to change my mind, please just cut the crap and cancel the account”. Finally I was told the account would close on 8th January and some packaging would be sent so I could return the box and modem to Virgin Media. Fair enough, I thought.

I was travelling before Christmas, but noticed when I got back that Virgin Media had made a number of attempt to phone me while I was away. Eventually they phoned when I was in. An operative told me he wanted to discuss “changes to my account” and asked for my password. I said there was nothing to discuss as I had cancelled it. He persisted. I put the phone down. When I got back from a Christmas break in Newcastle the same thing happened again, with the same response. Then again the same day. Then again. The third time it happened in the same morning, I’m afraid I lost my temper and told the Virgin Media representative to fuck off. That did the trick.

Yesterday I received a bill from Virgin Media including a charge for the period 8th January to 7th February 2013, being the month after my account was supposed to be cancelled. I picked up the phone and called Virgin Media, assuming that somehow the instruction to close the account had been lost. In fact it hadn’t. The person I spoke to said “yes, your account is to be closed on 8th January”. “Then why have you billed me for the following month?”, I asked. “That’s our standard practice.” was the reply.

Standard practice? Sounds to me like theft! Assuming it would be very difficult to get money back once Virgin Media had purloined it, I immediately cancelled my Direct Debit to stop them taking the funds from my bank account. If they send me a correct bill for what I actually owe, I’ll pay it of course. But I’m never having anything to do with Virgin Media ever again.

P.S. I won’t have internet at home for a while from 8th January, so probably won’t be doing much blogging at weekends. On the other hand, I will have a lot of other things to be getting on with as I gradually relocate to Brighton by the sea…

P.P.S. Just received an email from Virgin Media with the following header…

medialogo

…which is of course exactly what I did.

Blog Feedback Questionnaire

Posted in Uncategorized on January 4, 2013 by telescoper

I’m back to work with a thump, having received delivery of my module feedback questionnaires for last term. All useful feedback, so I’m grateful for the students who bothered to fill them in and especially to those who wrote detailed textual comments. Apart from one, that is, who was apparently so gripped by apoplexy that he/she was unable to hold the pen properly – the resulting scratchings were entirely illegible.

Anyway, in the light of the students’ response to the quality of my lecturing I thought I’d try to gather feedback on the quality of my blogging. Please complete the following survey. Textual comments may be provided in the form of textual comments through the textual comment box below.

Now is the Winter of our Discontent

Posted in Literature with tags , , on January 3, 2013 by telescoper