Gruber Prize 2020: Volker Springel & Lars Hernquist

Posted in Open Access, The Universe and Stuff with tags , , , , , on May 8, 2020 by telescoper

I’m delighted to be able to pass on the news released yesterday that the 2020 Gruber Prize for Cosmology has been awarded to Lars Hernquist (left) and Volker Springel (right) for their work on numerical simulations.

The citation reads:

The Gruber Foundation is pleased to present the 2020 Cosmology Prize to Lars Hernquist and Volker Springel for their transformative work on structure formation in the universe, and development of numerical algorithms and community codes further used by many other researchers to significantly advance the field. The contributions of Hernquist and Springel have led to profound insights spanning billions of years of cosmic evolution, including simulations of the growth of early density fluctuations through to present-day galaxies, the influence of galaxy mergers on star formation, and the close coevolution of supermassive black holes with their host galaxies.

I’ll just add that as well as being enormously influential in purely scientific terms both these scientists have contributed to the culture of open science through making codes (such as GADGET) freely available to the community.

Heartiest congratulations to Volker Springel and Lars Hernquist on their very well deserved award.

Bright Mississippi – Allen Toussaint

Posted in Jazz with tags , , , on May 7, 2020 by telescoper

I have, on a few occasions posted pieces of Jazz that cross over different eras and here’s a wonderful example that has been in my head for a while. Bright Mississippi is a typically quirky composition by Thelonious Monk, a man often described as the ‘High Priest of Bop’. This version in a live performance by a band led in 2009 by Allen Toussaint, however, gives it a joyously carefree New Orleans treatment.

Tsundoku

Posted in Biographical with tags on May 7, 2020 by telescoper

I’m a bit late having my lunch break today because I’ve had so many things to do. That also means I don’t have much time to post much.

I was staring vacantly around my sitting room after eating my sandwich when I noticed this pile of (six) books.

I remember putting those books there a few weeks ago when there there was a little game going around on Twitter based on the Japanese word Tsundoku (積ん読) which means the practice of acquiring reading materials but letting them pile up in one’s home without reading them. I do that a lot, so I’m quite pleased there’s a word for it. The term originated in the Meiji era (1868–1912) as Japanese slang.

The Twitter game involved showing a stack of six books acquired but unread and inviting six others to do likewise. Most of my books are currently unreachable, either in my office in Maynooth University or in storage back in Cardiff, but most of those I do have in my flat in Maynooth are unread because those are the only ones I brought here. This has made it difficult to display an array of books behind myself during Zoom meetings and the like.

I’m not sure I’ll get around to reading any of them any time soon. One of the reasons for that (besides lack of time) is that I really need to get new specs as my eyesight is deteriorating and quite a few of these books have rather small print. I wonder when I’ll be able to have an eye test?

Watch “Why the Universe is quite disappointing really – Episode 1” on YouTube

Posted in The Universe and Stuff, YouTube on May 6, 2020 by telescoper

Episode 1, in which I explain why stars are not very good at generating power and that a couch potato radiates more energy per kilogram than the Sun.

https://t.co/elGMl468hq

Don’t Wash The Baby!

Posted in Uncategorized on May 5, 2020 by telescoper

I see that my (relatively) new washing machine has a setting for washing a Baby, which is a bit surprising because 60° would seem to be a bit warm for that..

Matters of Chance

Posted in Biographical, Covid-19, Maynooth with tags , , , on May 5, 2020 by telescoper

Quite a few times on this blog I have acknowledged the tremendous amount of luck I have had all the way through my career, not least that the opportunity which led to my current position in Maynooth came up when exactly when it did.

I was reminded of these theme the other day when someone circulated this excerpt from a book by Max Weber, which reflects on my own experiences.

I remember a conversation I had with Lev Kofman – a far more significant scientist than me – during which he called me a “fucking lucky bastard”. For a moment I thought he was being abusive but then, with a smile, he added “Welcome to (the)* Club”.

Another factor that has undoubtedly played a role in my own career as well as good fortune has been privilege, defined not only in terms of race and social class but also educational and institutional background. Those of us who have benefitted from this are often blind to its influence, preferring to think we achieve things purely on merit.

Nowadays all this talk about luck has taken a new twist. During the Coronavirus crisis my workload and stress levels have gone through the roof. Whenever I feel a bit overwhelmed I tend to reflect on the fact that I’m lucky to still have a job with a steady income at this time when so many have lost theirs.

How much longer this good fortune will last, I don’t know. There are dark rumours circulating about pay cuts, course closures and redundancies having to take place in the financial aftermath of Covid-19. I almost opted for early retirement a couple of years ago. Perhaps soon I’ll have no choice.

*Lev, being Russian, never really got the hang of articles; the definite article in parentheses is my addition.

Watch “Why the Universe is quite disappointing really – Introduction” on YouTube

Posted in The Universe and Stuff, YouTube on May 4, 2020 by telescoper

Not the Euclid Consortium Meeting

Posted in Biographical, Euclid, Maynooth, The Universe and Stuff with tags , , on May 4, 2020 by telescoper

It’s a bright sunny Bank Holiday Monday and I’m here in my flat in Maynooth taking a coffee break before resuming work from home.

Before the Covid-19 outbreak started I had imagined that I’d be spending this week (or at least most of it) in Sitges near Barcelona for the annual Euclid Consortium Meeting which was planned to take place there. That has understandably been cancelled and replaced with a virtual meeting. Yet more Zoom sessions beckon…

Over the past weeks my workload has increased enormously but I’ve tried to clear the decks a little so I can tune in to some of the sessions but I won’t be able to make them all or even most.

I hope the virtual meeting goes well. Euclid is due to be launched in 2022 so time is getting short and there is much preparatory work still to do.

Well, talking of work I better get back to it! The first plenary is not until this afternoon and I’ve lots to do before then.

I wonder if normality will have returned in time for there to be a Euclid Consortium Meeting next year?

Testing YouTube

Posted in Biographical, mathematics, YouTube with tags , , on May 3, 2020 by telescoper

To do something a bit different during this Covid-19 lockdown I decided to set up my very own YouTube channel to which you may (or may not) wish to subscribe.

I’m new to this so I posted a short video to test how it works. It’s a little video explainer about Cramer’s Rule in linear algebra I made using Screencast-o-matic. I’ve done a lot of these over the past few weeks but they’re not what the channel is about: I posted this example is just to try out the system (mainly to see how long the upload would take).

I put this up yesterday and I’ve already amassed five subscribers so I’m well on the way to becoming a YouTube sensation. I may even become viral so please ensure that you practice social distancing while watching the videos.

The Riddle of the Leaving Certificate

Posted in Covid-19, Education, Maynooth with tags , , , on May 3, 2020 by telescoper

I’ve been studying the ‘Roadmap‘ outlining the gradual relaxation of Covid-19 restrictions that, all being well. will begin on May 18th. There are five phases of this process, each lasting three weeks. At any point the process can be stopped or reversed if the data suggest things are going wrong.

It’s quite consistent with how I imagined it might work when I wrote about it a couple of weeks ago:

As a physicist I see the change being rather like an adiabatic process, carried out in quasi-static fashion, in a series of reversible steps…

Some measure of social distancing will remain even after the completion of all five phases, and will probably stay in place until a vaccine for Covid-19 is available.

I first noted this in Phase 1:

Which suggests that some staff may be allowed onto campus. At my University (Maynooth), however, teaching will have finished by May 8th. By May 18th the exam period will have started but it is not obvious that the above can be interpreted as allowing staff into their offices to mark examinations and project assessments. Speaking for myself I would find that useful. I suppose we will find out fairly soon what it means.

On the whole the Roadmap seems to me quite reasonable. It is rather broadbrush in character, which is understandable, though that does mean many details need to be worked out. There is however one very surprising omission which leads to a serious contradiction and is causing considerable confusion.

According to the Roadmap, Irish schools will not reopen until Phase Five, which commences on August 10th, just in time for the start of the 2020/2021 academic year.

On the other hand it has already been announced that the School Leaving Certificate examinations (which start in June in a normal year) would commence on July 29th. Moreover the Education Minister has previously indicated that these examinations would only happen after two weeks of classroom teaching for students who have been having only remote teaching during the Lockdown.

If schools are not to reopen until August 10th then it is not possible for the Leaving Certificate to start on July 29th. Even if the classroom teaching bit is scrapped there won’t be anywhere for students to sit the examinations!

There’s no mention of the Leaving Certificate in the Roadmap which suggests that the Government hasn’t thought it through yet. It seems to me virtually certain that a u-turn is coming up and the Leaving Certificate is going to be cancelled after all. Students will probably welcome this outcome but I’m not sure what it would mean for this year’s University admissions!

On the other hand I am informed by a reliable source that the Government is adamant that the Leaving Certificate will go ahead on 29th July as planned. The question is how?