Friday, September 28, 2012

That's ridiculous

Japan's NTT breaks fibre optic data speed record 
Japan's incumbent telecommunications carrier, NTT, is claiming a telecommunications speed record, demonstrating a fibre technology able to carry 1 Petabit-per-second - a million gigabits - over a distance of 50 kilometers, using a single fibre.

The technology - at this stage a research demonstration not ready for commercialization - would serve not end users, but the "trunk" links between exchanges. The carrier selected the 50 km distance as reflecting the typical distance between medium-haul telecommunications exchanges in Japan.

NTT's report states that it used a specially-designed optical fibre in which one fibre strand contained 12 "cores" - light paths within the fibre that don't interact with each other. Each of those fibres carried an 84.5 Terabit-per-second signal to achieve the total 1 Pbps throughput.
So, how much data does this really represent in something we can understand?:
 The 1 Pb/s capacity of the NTT-demonstrated link would carry the equivalent of 5,000 two-hour HDTV movies each second, the company says.

Thursday, September 27, 2012

More on the Republicans not making sense...

A column in the Washington Post puts the problems with Romney squarely on where his party has gone:
Why won’t Romney, an intelligent man, fluent in economics, explain his economic policy? Because any sensible answer would cause a firestorm in his party.

It is obvious that, with a deficit at 8 percent of gross domestic product, any solution to our budgetary problems has to involve both spending cuts and tax increases. Ronald Reagan agreed to tax increases when the deficit hit 4 percent of GDP; George H.W. Bush did so when the deficit was 3 percent of GDP. But today’s Republican Party is organized around the proposition that, no matter the circumstances, there must never be a tax increase of any kind. The Simpson-Bowles proposal calls for $1 of tax increases for every $3 of spending cuts. But every Republican presidential candidate — including Romney — pledged during the primaries that he or she would not accept $10 of spending cuts if that meant a dollar of tax increases.

So Romney could present a serious economic plan with numbers that make sense — and then face a revolt within his own party. His solution: to be utterly vague about how he would deal with the deficit.
And it ends:
 The Republican Party has imposed a new kind of political correctness on its leaders. They cannot speak certain words (taxes) or speculate about certain ideas (immigration amnesty) because these are forbidden. Romney has tried to run a campaign while not running afoul of his party’s strictures. As a result, he has twisted himself into a pretzel, speaking vacuously, avoiding specifics and refusing to provide any serious plans for the most important issues of the day.
 All sounds about right to me.

Williamstown discussed

Maritime and tide

This short article in The Age talks about some of the history of Williamstown, which is pretty much my favourite part of Melbourne.

Clever mice

BBC News - 'Scar free healing' in mice may give clues to human skin repair, says study

There was a report just a day or two ago that new work on how axolotls re-grew limbs indicated that it was trick unlucky to be able to be artificially copied in humans.

But then this article on some African mice can repair skin with no scars, and full hair, indicates mammals may be better at regeneration than we thought.

Rubbery figures?

Climate change already harming the global economy - environment - 26 September 2012 - New Scientist

I remain very skeptical that reliable economic modelling can possibly be done for the economic effects of global warming over the long term.

Just use common sense, and don't limit your thinking to some artificial target like the turn of the century.

I mean, can anyone reliably model the economic effects of eventual ocean level rise of (say) 3 metres over the course of 100 - 200 years?   I would rather just assume that turning many centres of civilisation (known as "cities") into empty versions of Venice is a bad idea, and you do what you can now to reduce the possibility in as economically sound way as you can.

We'll see

Short Sharp Science: Newly spotted comet may outshine the full moon

These predictions when new comets are spotted so far out are not at all reliable, but we'll see around Christmas 2013.

Wednesday, September 26, 2012

Tuesday, September 25, 2012

Hedley stamps his foot

First, I noticed that the Courier Mail website this morning has a headline that is utterly at odds with the contents of the story:



How strange.  An independent report that looks at the dam operation and backs the SEQWater engineers is going to "open lawsuit floodgates"?

The headline at the actual report page is just slightly better:
Multi-billion dollar lawsuit in wake of report backing Wivenhoe Dam flood engineers 
Readers might still be somewhat puzzled as to the chosen headline when the report opens:
A MULTI-BILLION-dollar lawsuit is set to become the next chapter in the January 2011 flood saga after a crucial US Government report backed the actions of the four flood engineers who controlled Wivenhoe Dam.
 
The report - by the Department of the Interior and the US Army Corps of Engineers - has warned the massive dam sitting above Brisbane is far more lethal than previously believed, and further re-inforced previous criticism of the dam's manual.

But it strongly backed the actions of the four dam engineers who were repeatedly accused in the $15 million flood inquiry of mismanaging the dam and confecting a fraudulent report to cover their tracks.


The report
is a potential blow to flood victims seeking compensation but lawyers are determined to proceed with legal action, with thousands of claimants signed up to a class action demanding billions of dollars in compensation.
Where's Hedley Thomas' commentary about this?  Well, he's having a big stamping of the foot over at the Australian:
Why Campbell Newman has a billion reasons to airbrush the floods 'facade'
 Hedley complains that the Queensland government asking the US engineers to review the report that the SEQWater engineers wrote but without considering the inquiry's findings that the engineers had been not accurate as to how and when they made their water release decisions.

Hedley, you see, is exceptionally proud of having made life a living hell for the three engineers for about 18 months, despite the fact that the CMC recently declined to take any action against them, and explained in its review that the problem basically lay in a poorly drafted manual: 

Retired Appeal Court judge John Jerrard, QC, headed up the CMC investigation and wrote in his findings the engineers had believed they were following the dam manual when they adopted their water release strategies during the floods.

In his advice Mr Jerrard said prosecution of the trio would be ‘‘oppressive’’ if they were simply trying to follow a manual that contained contradictory statements....

‘‘An honest belief that the engineers had always intended to comply with the Manual would justify the engineers describing themselves as adopting strategy W3, when strategy W2 was not appropriate, even when they had earlier thought W2 was appropriate, and had said that they were in it,’’ Mr Jerrard said in the CMC report.

‘‘If the engineers believed they had followed the Manual, it is not dishonest, criminal, or misconduct, for any of them to say that they did.

‘‘Nor is it dishonest, criminal, or misconduct, to misunderstand what the Manual required.’’

Has Hedley ever done a detailed report on the findings of this review?   Not as far as I know.   (Correct me if you're reading, Hedley.)
No, instead, Thomas is still on a campaign to encourage people that there is someone to blame for a natural disaster.   His longer review article in The Australian today complains:
IT should be no easy feat to turn the serious, damning, evidence-based findings of a $15 million royal commission-style inquiry -- one that nailed an egregious cover-up - into a glowing endorsement barely six months later. 

But that is precisely what a group of US engineers, asked to review the performance of another group of engineers - those in control of Wivenhoe Dam's massive releases of water in January last year, water that became most of the Brisbane River flood - have managed to achieve.
 As ever, he is more interested in a populist campaign: 
Nine months ago, as a direct result of a series of stories in The Australian highlighting the evidence of a cover-up that had been overlooked by the floods inquiry, Holmes decided to restart public hearings and resume investigations. An inquiry that had effectively completed its year-long assignment, save for the release of a final report yet to be printed, went back to work. Flood victims saw a glimmer of hope that their concerns of a man-made disaster, or at least a disaster that could have been minimised with a more prudent dam operation, were justified.
 I have explained in detail before how the flood inquiry shows convincingly that this was not a man-made disaster, and it's only because of a shameful campaign of sensationalist reporting by News Ltd outlets and Thomas in particular that any member of the public should be thinking this way.

Furthermore, the evidence at the commission by the independent expert was that the rate of water release  (despite a technical non-compliance with the manual) was only likely to have been inappropriate for a period of about 7 hours.  That expert's modelling indicated that following other release scenarios was likely to have been only capable of modifying flood levels by (perhaps - subject to many uncertainties) 30 to 50 cm.  For a city that looked like this at the height of the flood, 30 cm was not going to make a hell of a lot of difference:


It is therefore no surprise that other water engineers should be agreeing that the engineers here had acted reasonably. 

Hedley Thomas, it's time you starting reporting realistically on the matter, and give up on running campaigns more in your own interests than those of the public.

Monday, September 24, 2012

One extreme to another?

Andrew Glikson from ANU has a new article up at The Conversation, arguing that there is ample evidence of an increase in the number of anomalous weather events since the 1970's to be confident that they have been caused by the AGW that has presently only reached .8 degree.  Give the planet  another 1 or 2 degree increase, and things can be expected to be much worse.

But as for the attribution of any individual extreme events, that work is still tricky, and Nature last week noted that some climate scientists doubted whether it was really useful to try to make attribution claims at all.  The editorial thought this was too harsh, and in any event, it seems to me that it was more concerned with whether climate modelling could predict future individual anomalous events, rather than attribution in hindsight.

There certainly still seems to be a tension between some folk at NOAA who were very, very fast to claim the Russian heatwave was just one of those things, and other scientists who thought it was attributable in significant part to AGW.   Climate fake skeptics, like Anthony Watts, lap this all up as reason to do nothing, of course.

At the local level, Brisbane's weather, which was extremely wet and cloudy about two years, just seems to have had the water turned off like a switch over the last couple of months.    A month ago they said it had been 32 consecutive days without rain; I would say that it has effectively been extended to 62 days now, even if at Brisbane Airport they might have had a day with technically 1 mm of rain.   On the side of town where  I live, there was one day last week where a very fine spray came down for about 10 minutes,barely damping the bitumen before it evaporated.  I'm not counting that as break in the dry spell.  The small-ish water tank we have at home has emptied for the first time since it first filled 3 or 4 years ago.

Well, at least I expect it will be good weather to be a the beach this year; but I also expect more fires around Brisbane than usual.

Update:  After yesterday's complaint, Brisbane got its first widespread storm of the season, with a bit of hail thrown in.   We'll see how this changes things. 

Roger defects? Maybe not...

Why doesn't Roger Scruton want to be labelled as "of the right"?

Well,  England has still got something going for it when people there can go to a debate between Roger Scruton and Terry Eagleton.  The New Statesment notes that it was most interesting for the fact that Roger Scruton declared that he does not like being labelled as "of the Right" (although the magazine just uses small "r" right):
It was at this point that Scruton’s squirming began - both physically and rhetorically. He has, it turns out, a great aversion to being identified as “of the right”.

“People on the right don’t identify themselves as such, not as part of a group. We’re just holding on to the things we love,” he said, in what appeared to be a sleight-of-hand justification for secretly quite liking the Changing of the Guard.

“But you said of Thatcher...” Eagleton began, only to be interrupted as Scruton retorted: “I’ve grown up since then.”
I wonder what Scruton thinks of the Right as currently represented by the Republican Party. 

Sunday, September 23, 2012

A good question

Christof Koch, Robert Sawyer: Could the Internet ever become conscious? - Slate Magazine

If memory serves me right, I think I suggested to friends years ago that you would know something was up with the internet when electronics factories start getting orders for chips and computers, and where to install them, but with only fake human authorisations.

I see that Robert Sawyer has novels about the internet becoming conscious.  I wonder if that happens in his stories.  Or did it happen in some short science fiction story I've read and forgotten about? 

Alternative ideas

Dark matter effect might be explained by modified way to calculate inertial mass

I've mentioned MOND theory from time to time as an alternative explanation for dark matter, but this MOND-ish proposal is possibly testable.

Furthermore, Mike McCulloch claims that his idea might explain the acceleration of the universe as well. 

Who is he, though?   Well, I would be a little surprised if stunning new understandings of physics come from some who works part time at the Plymouth University School of Marine Science and Engineering, and whose personal page features  cartoons of dubious quality (yes, I know - I should talk!) and bad short stories, but I should retain an open mind, I suppose.

Gopnick does fantasy

“The Lord of the Rings,” “Twilight,” and Young-Adult Fantasy Books : The New Yorker

The always readable Adam Gopnick has a discussion here about "high fantasy for young adults", and starts with a look at Tolkien in a way that I can almost approve (ie it's sort of disparaging.)

I liked the wittiness of this bit:
It’s true that his fantasies are uniquely “thought through”: every creature has its own origin story, script, or grammar; nothing is gratuitous. But even more compelling was his arranged marriage between the Elder Edda and “The Wind in the Willows”—big Icelandic romance and small-scale, cozy English children’s book. The story told by “The Lord of the Rings” is essentially what would happen if Mole and Ratty got drafted into the Nibelungenlied.
 this too:
Modernist ambiguity, or realist emotional ambivalence, is unknown to Tolkien—the good people are very good, the bad people very bad, and though occasionally a character may be tossed between good and evil, like Gollum, it is self-interest, rather than conscience, that makes him tip back and forth. Betrayal and temptation happen; inner doubts do not. 
and this:
What substitutes for psychology in Tolkien and his followers, and keeps the stories from seeming barrenly external, is what preceded psychology in epic literature: an overwhelming sense of history and, with it, a sense of loss. The constant evocation of lost or fading glory—Númenor has fallen, the elves are leaving Middle-earth—does the emotional work that mixed-up minds do in realist fiction. We know that Westernesse is lost even before we know what the hell Westernesse was, and our feeling for its loss lends dimension to those who have lost it. (There is also, in Tolkien, the complete elimination of lust as a normal motive in daily life. The wicked Wormtongue lusts for Éowyn at the court of Rohan, but this is thought to be very creepy.)
Of course, as I am happy to explain that I dismiss LOTR on the basis that I lost interest after about 100 pages both times I tried it, and found the first movie boring, I have no idea what characters Gopnick is talking about in that last sentence; but anything that criticises the book in any respect appeals to me.  It's very, very hard to find other people who share my attitude.   You try Googling for anti-Tolkien mutual support groups - it's been a while since I did, but I couldn't find one.

But seriously: I think Gopnick has given me better justification for my disdain, so for this he must be praised.

By the way, the rest of the article talks about other examples of fantasy that appeal to young adults, particularly the Eragon series, and even Twilight, and he makes some pretty good points that I think my regular reader Tim would like to see.  This part in particular:
 And the truth is that most actual mythologies and epics and sacred books are dull. Nothing is more wearying, for readers whose tastes have been formed by the realist novel, than the Elder Edda. Yet the spell such works cast on their audience wasn’t diminished by what we find tedious. The incantation of names is, on its own, a powerful literary style.
True, I think.   Although I did like what the Coen brothers did with the Odyssey.  :)

Saturday, September 22, 2012

Yet more sound Republican judgement

Herman Cain: Let’s face it, I’d probably have a substantial lead right now if I was the nominee 

Are they competing for some sort of comedy award in the Republican Party at the moment?

Uh-huh

Rand Paul Says 2012 Election Over, Romney has Already Won

Even without his making silly statements like that, I still find Rand Paul's hair prevents me taking him seriously.  Curly hair on a male politician just has that effect on me.  I am not sure why...

Friday, September 21, 2012

Living forever...kind of...

Multiverse: A Religion ?

Why have I never paid much attention to the Science 2.0 site?   Somehow or other, I stumbled onto this recent blog post by particle physicist Tommasco Dorigo talking about whether the idea of the multiverse is popular with the public because it's a bit like religion-like:
The discussion was scheduled to last one hour, but we kept our audience glued to their chairs for almost two, without boring ourselves nor apparently them. Being unfamiliar with discussions of the multiverse in public, it was interesting to me to detect how the idea is fascinating to most laypersons. I believe one reason is the religious aspect of the whole thing.

Indeed, long ago man invented religion as a way to explain what he could not figure out by logical methods, as well as to accept his own mortality: religion made acceptable the concept of death, as well as give an explanation to other natural phenomena. And man is now inventing the multiverse in what appears to me a new, albeit well disguised, attempt in the same direction. One as reassuring and sweet as the idea of an almighty entity: because by throwing one's hands up with the idea of a landscape of universes with any possible combination of parameter values one relieves the pressure of feeling powerless, as of yet, in the task of understanding the new layer of mysteries that fundamental science has come to face.


 I think one additional appeal of the idea of a continuous birth of universes of all kinds is the built-in feature of an eternal comeback of the same initial conditions, or infinitely similar ones. We might be immortal after all, but not in the sense that Tipler figured out in his entertaining but crazy book "The Physics of Immortality" - a host of intelligent computers allowing the best of us to be reborn as emulations short before the big crunch. Rather, if we accept that the universe is a multiverse unlimited in time, with bubbles continuously regenerated, we must conclude that we are bound to live again not one, but an infinite number of times. Hopefully still with a choice of what to do with our lives.
 I have mentioned way back in 2007 that Hugh Everett, who came up with the "many worlds" interpretation of quantum physics actually thought it guaranteed him a type of immortality.   Seems to me that the multiverse could be argued to guarantee something more like re-incarnation. 

I must think about this more.

Stock up for the end of the world

Beer and the Apocalypse | Restricted Data

Cute post here from a pretty interesting looking blog (found via The Browser website - see link at the side) about how atomic tests in the 1950's did check to see if beer and soda would survive close to an atomic bomb.   It mostly did.  Cheers.

Brulee'd to death

How to cook perfect creme brulee | Life and style | The Guardian

Hey, time for another entry in Felicity Cloake's food blog where she spends an inordinate amount of time explaining the different recipe variations on a simple dish, and which variation she prefers.

It's always a case of "more than I ever really needed to know", but I still enjoy them, in a food porn sort of way.

Update:  I really shouldn't complain about Felicity's work.  I just noticed another recent article on the Guardian's site:  How to boil an egg.    Seriously....

New drug, new problem

Party's over: mephedrone causes memory impairment

Apparently known as Meow, this (relatively new sounding) party drug sounds like it has bad consequences for memory, and brain function generally.

I don't know why people are so keen to wander from the old, established and tasty means of mild mental modification known as alcohol.

An explanation...

With an operating history just marginally better than the Chernobyl power station, and currently in meltdown mode, I like to use the Catallaxy website (the preferred site for "libertarian and centre right" types who are actually fans of the way the American Right has run away from the centre at a rapid pace, and up and over the barrier at the edge of the cliff marked "Warning:  you are about to leave political, economic and scientific common sense") as an example of the way free enterprise sometimes stuffs some things up pretty spectacularly.   This is, perhaps, unfair;  it nonetheless amuses me and hopefully annoys some of them. 

This may mean that some will come here and make rude comments.  Bad language is never tolerated here, so they will be deleted when noted.