Archive for January, 2016

Stephen Hawking’s Reith Lectures

Posted in Biographical, The Universe and Stuff with tags , , , , on January 8, 2016 by telescoper

Yesterday I took off early from work to head up to the Royal Institution in London to attend a recording of the Reith Lectures, this year given by Stephen Hawking.

Here’s a rather crappy phone pic to show I was there.

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In fact they recorded two of this year’s lectures, as well as a lengthy question-and-answer session. The talks and answers to audience questions did of course have to be pre-loaded into Stephen’s computer before delivery which necessitated some pauses for uploads. This together with the recording of various intros, outros and idents made for quite a lengthy event but I found the whole process fascinating and didn’t mind that at all. I did have three glasses of wine at the drinks reception before the show, however, so was in quite a relaxed frame of mind generally.

In charge of the whole thing was the inestimable Sue Lawley who did her job brilliantly. On a few occasions, Stephen Hawking’s computer had a glitch and made a spontaneous interjection in an inappropriate place. Sue Lawley proved  completely unflappable.

The topic for the series is, not surprisingly because it is what Hawking is most closely associated with, Black Holes. The lectures were enjoyably sprinkled with some very witty asides, but I did get surprisingly technical at a few points; the audience members beside me were visibly baffled on more than one occasion. See what you think yourself when the lectures are broadcast, the first on 26th January and the second a week later, both at 9pm on BBC Radio 4. They will also be broadcast on the BBC World Service.

The Reith Lectures are open to the public. Apparently over 20,000 applied for tickets to attend last night, such is the draw of Stephen Hawking. The capacity of the Royal Institution lecture theatre is only about 400 so many were disappointed. Fortunately for me, owing no doubt to some form of administrative error, I was an invited guest. I was however somewhat relieved to find I was only on the B-list so although I got to use the VIP entrance I didn’t have to sit among the big nobs at the front in reserved seats.

MPS Staff-Student Christmas Social

Posted in Uncategorized on January 7, 2016 by telescoper

Here’s a montage of photographs taken during the Christmas Staff-Student social event we held in the School of Mathematical and Physical Sciences at the University of Sussex in December 2015. It was a lot of fun, as the pictures make clear!

All Photo Credits: Summer Dean

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Posted in Uncategorized on January 6, 2016 by telescoper

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BICEP3 Cometh…

Posted in The Universe and Stuff with tags , , , , , on January 6, 2016 by telescoper

Back in the office after the Christmas and New Year break, with a mountain of stuff to work through..

Anyway, I saw this paper on the arXiv yesterday and thoought I’d share it here. It’s from a paper by Wu et al. entitled Initial Performance of BICEP3: A Degree Angular Scale 95 GHz Band Polarimeter.  The abstract follows:

BICEP3 is a 550 mm aperture telescope with cold, on-axis, refractive optics designed to observe at the 95 GHz band from the South Pole. It is the newest member of the BICEP/Keck family of inflationary probes specifically designed to measure the polarization of the cosmic microwave background (CMB) at degree-angular scales. BICEP3 is designed to house 1280 dual-polarization pixels, which, when fully-populated, totals to 9× the number of pixels in a single Keck 95 GHz receiver, thus further advancing the BICEP/Keck program’s 95 GHz mapping speed. BICEP3 was deployed during the austral summer of 2014-2015 with 9 detector tiles, to be increased to its full capacity of 20 in the second season. After instrument characterization measurements were taken, CMB observation commenced in April 2015. Together with multi-frequency observation data from Planck, BICEP2, and the Keck Array, BICEP3 is projected to set upper limits on the tensor-to-scalar ratio to r 0.03 at 95% C.L..

It all looks very promising, with science results likely to appear later this year, but who will win the race to find those elusive primordial B-modes?

 

The Great Curve II: Citation distributions and reverse engineering the JIF

Posted in Uncategorized on January 5, 2016 by telescoper

Here’s a lengthy study of Journal Impact Factors. It’s mainly about cell biology journals but I think this across all scientific disciplines. The JIF is so flawed as to be meaningless but this discussion suggests that the situation is even worse than that, with some advertised JIFs being wrong…

quantixed's avatarquantixed

There have been calls for journals to publish the distribution of citations to the papers they publish (123). The idea is to turn the focus away from just one number – the Journal Impact Factor (JIF) – and to look at all the data. Some journals have responded by publishing the data that underlie the JIF (EMBO J, Peer JRoyal Soc, Nature Chem). It would be great if more journals did this. Recently, Stuart Cantrill from Nature Chemistry actually went one step further and compared the distribution of cites at his journal with other chemistry journals. I really liked this post and it made me think that I should just go ahead and harvest the data for cell biology journals and post it.

This post is in two parts. First, I’ll show the data for 22 journals. They’re broadly cell biology, but there’s something…

View original post 1,883 more words

Nature and the Open Journal of Astrophysics

Posted in Uncategorized with tags , on January 4, 2016 by telescoper

As I prepare to return to Sussex for the new term, I find that Nature News & Comment has published a piece on a pet project I’ve blogged about on a number of occasions, The Open Journal of Astrophysics.

There are a couple of sceptical comments quoted in the piece, which is fair enough. Such views are not at all unexpected. This is a new venture and there are bound to be people who prefer to stick to the established publishing channels. I and the others involved in the Open Journal think traditional journals have long since had their day. We’ll just have to see how many others agree!

A Wet New Year in Cardiff

Posted in Uncategorized on January 3, 2016 by telescoper

I haven’t been too well for the first few days of 2016, and haven’t been out much since New Year’s Eve. It’s been chucking it down most of the time anyway! I was feeling a bit better this morning and there was a gap in the rain so I went for a walk and did a few errands.

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The River Taff is swollen because of the rain. Those are small trees partly submerged in the foreground, so the river is up about a couple of metres. There’s no imminent danger of flooding. I have seen it much higher than this. There seems to be more rain in store though.

I’m travelling back to Brighton on Tuesday barring any problems with the trains. I have a lot to do when I get back to the office. I have to lecture again next term, but there’s also an important grant application to put together, not to mention the official launch of the Open Journal..

Just how mild has this December been?

Posted in Uncategorized on January 1, 2016 by telescoper

In case you hadn’t noticed…

Michael de Podesta's avatarProtons for Breakfast

A great deal of rain has fallen on some parts of the UK this month (December 2015) A great deal of rain has fallen on some parts of the UK this month (December 2015) (Source : BBC)

It’s been exceptionally warm this month.

We will have to wait a day or two for the various agencies to compile their annual reports, but let me précis the results for you:

  • 2015 has been ‘warm’.

And this  warmth has been evident where I live and work, in Teddington.

Analysing the data from my weather station a day early, I have compared my local results with the ‘climate normals’ for nearby Kingston upon Thames.

‘Climate Normals’ are the average values of various meteorological quantities over (typically) 30 year periods, in this case from 1981 to 2010.

Graph showing the 'Climate Normals' for the daily maximum and minimum temperatures for Kingston upon Thames. Also shown are data from my weather station for September, October, November and December. Graph showing the ‘Climate Normals’ for the daily maximum and minimum temperatures for Kingston upon Thames. Also shown are the averaged data from my weather station for September, October, November and December. Click the graph for a larger…

View original post 400 more words

Song At Year’s Turning

Posted in Uncategorized on January 1, 2016 by telescoper

Shelley dreamed it. Now the dream decays.
The props crumble; the familiar ways
Are stale with tears trodden underfoot.
The heart’s flower withers at the root.
Bury it then, in history’s sterile dust.
The slow years shall tame your tawny lust.

Love deceived him; what is there to say
The mind brought you by a better way
To this despair? Lost in the world’s wood
You cannot stanch the bright menstrual blood.
The earth sickens; under naked boughs
The frost comes to barb your broken vows.

Is there blessing? Light’s peculiar grace
In cold splendour robes this tortured place
For strange marriage. Voices in the wind
Weave a garland where a mortal sinned.
Winter rots you; who is there to blame?
The new grass shall purge you in its flame.

by R.S. Thomas (1913-2000)