Greg Laden has a lengthy post talking about the potential for the Yellowstone Caldera to erupt in the future. Lots of detail, a fair bit of uncertainty, but seems it’ll happen some day.
Wednesday, March 02, 2011
Tuesday, March 01, 2011
Neat theory in big trouble?
Nature has an article up that explains it to some degree (it's one way to explain the incomplete knowledge of the standard model of particle physics,) but more importantly, it notes that early results from the LHC runs to date indicate that the theory may be in trouble. The implications are summed up towards the end:
"Privately, a lot of people think that the situation is not good for SUSY," says Alessandro Strumia, a theorist at the University of Pisa in Italy, who recently produced a paper about the impact of the LHC's latest results on the fine-tuning problem4. "This is a big political issue in our field," he adds. "For some great physicists, it is the difference between getting a Nobel prize and admitting they spent their lives on the wrong track." Ellis agrees: "I've been working on it for almost 30 years now, and I can imagine that some people might get a little bit nervous."
"Plenty of things will change if we fail to discover SUSY," says Lester. Theoretical physicists will have to go back to the drawing board and find an alternative way to solve the problems with the standard model. That's not necessarily a bad thing, he adds: "For particle physics as a whole it will be really exciting."
Hollywood or Bust (actually, just Bust)
As every media outlet in the world is reporting today, Sheen does not know when to leave a job disaster alone, and instead is trying to create his own career China Syndrome (even though I don't think even the Japanese would employ him for a canned coffee commercial at the moment.)
Here are highlights of his Today show interview:
Visit msnbc.com for breaking news, world news, and news about the economy
If you can't be bothered watching the clip:
"It's like, everybody thinks I should be begging for my job back, and I'm just going to forewarn them that it's everybody else that's going to be begging me for their job back."
"I am a man of my word, so I will finish the TV show. I'll even do Season 10, but at this point, (because of) psychological distress, oh my God, it's 3 mil an episode. Take it or leave it," he said.
"I'm tired of pretending like I'm not special," Sheen added. "You can't process me with a normal brain."
It looks even worse than it sounds on video, though.Monday, February 28, 2011
The itch
Tiny 'microworms' could be implanted under the skin for continuous medical monitoring
it immediately struck me as something you would not want a potential sufferer of Morgellons disease to read. But, if you did have a delusional belief that you had itchy fibres under your skin, wouldn't it be more comforting to believe they are a high tech monitoring device implanted by aliens (or time travelling doctors) rather than a mystery bug or fungus? I'd go for the high tech explanation; it would make me seem more special.
In any event, I've just noticed that Neuroskeptic has a long and interesting post about the "disease". Well worth reading, if you like strange diseases of the mind.
By the way, while I'm certainly a Morgellon's skeptic, I have had this persistent itchy spot on my left shoulder blade for years. If ever I start talking about finding fibres coming out that of it, readers are authorised to email me with strong recommendations to see a psychiatrist.
Carbon taxing
There are three opinion pieces about pricing carbon today which are of interest:
* Henry Ergas runs the “traditional” arguments against acting unilaterally. In The Australian (of course.)
* Kenneth Davidson goes apocalyptic and believes the Australian scheme and targets are a pittance anyway, and arguments that people should get used to the fact that much, much more to reduce CO2 will be necessary:
A safe climate scenario requires that the present global warming of just under 1 degree not be exceeded. Globally, this requires the end of the fossil fuel industries.
According to David Spratt, co-author of Climate Code Red: the case for emergency action, ''This requires emergency action, and probably 10 per cent or more of world production will be required for a sustained period to build a new energy system and economy. This is huge but is about a third of the production countries such as Australia, the United States and Britain diverted to defence production during World War II.''
The latest scientific modelling of climate change suggests that if the globe warms by 4 degrees - the likely result if the commitments made at Copenhagen in 2009 are all that is done - the consequences would be far more serious than if the allies were defeated in WWII.
According to Professor Kevin Anderson, director of the Tyndall Centre for Climate Change in Britain, ''If you have got a population of 9 billion by 2050 and you hit 4, 5 or 6 degrees, you might have half a billion people surviving.''
Well, we all hope it's not as bad as that.
* Phillip Coorey speculates (in a plausible way, I think) about the future politics of all this.
Sunday, February 27, 2011
Galaxies, worm holes and spoilsports
It was reported last week that a new study showed that the MOND theory (the modified gravity theory that some astrophysicists are still pursing despite it not being widely accepted) works well with yet another class of galaxy. This got some mainstream media attention, which really annoyed physicist Sean Carroll at Cosmic Variance. Carroll complains about the reports said this theory challenges the existence of dark matter. Not so, said Carroll, pointing out that MOND works well at galaxy level, but everyone knows it doesn’t work at the scale of galactic clusters. What’s more (he says) it’s not an elegant theory at all – it’s ugly, and we all know how physicists hate “ugly”. (Except when it comes to string theory, in a large number of cases.)
So the short story is: even with MOND, you still need dark matter to make the universe work right.
I find that’s a pity. Big science is stuck in a bit of a rut at the moment, and it would be good to see something major which is currently widely accepted turn out to be wrong.
Of more science fiction-y interest is a new paper that talks about the possibility of wormholes existing on the insides of stars - forming connections with stars on the other side of the universe:
I hope Sean Carroll stays away from this one: it's too intriguing an idea to be shot down too quickly.The scientists began investigating the idea of wormholes between stars when they were researching what kinds of astrophysical objects could serve as entrances to wormholes. According to previous models, some of these objects could look similar to stars.
This idea led the scientists to wonder if wormholes might exist in otherwise ordinary stars and neutron stars. From a distance, these stars would look very much like normal stars (and normal neutron stars), but they might have a few differences that could be detectable.
To investigate these differences, the researchers developed a model of an ordinary star with a tunnel at the star’s center, through which matter could move. Two stars that share a wormhole would have a unique connection, since they are associated with the two mouths of the wormhole. Because exotic matter in the wormhole could flow like a fluid between the stars, both stars would likely pulse in an unusual way. This pulsing could lead to the release of various kinds of energy, such as ultrahigh-energy cosmic rays.
In the garden today
There were lots of these type of smallish butterflies around. I don’t know why, but Brisbane always seems to have an overabundance of black and white butterflies. It seems rare to find one with more interesting colours.
In any event, the photos came out pretty well, I thought:
Friday, February 25, 2011
Trouble in China
Did you realise there was a pretty severe drought going on in China? No, nor did I; I'm obviously not paying enough attention:
Update:Gripped by its worst drought for 60 years, the world's biggest wheat producer is desperate for a downpour to avoid a crop failure that would have an impact on food prices around the world.
In other drought news, here's a discussion of a really big one in recent-ish pre-history (50,000 years ago). Lake Victoria dried up?:
The "H1 megadrought," as it's known, was one of the most severe climate trials ever faced by anatomically modern humans.
Africa's Lake Victoria, now the world's largest tropical lake, dried out, as did Lake Tana in Ethiopia, and Lake Van in Turkey.
The Nile, Congo and other major rivers shriveled, and Asian summer monsoons weakened or failed from China to the Mediterranean, meaning the monsoon season carried little or no rainwater.
The article notes that they think it had something to do with "a massive surge of icebergs and meltwater into the North Atlantic at the close of the last ice age", and as there is less water to go there now, maybe it won't happen again. We all hope so.
I also see that The Economist has an article about the difficulties of feeding an anticipated 9 billion people; drought or no drought.
Thursday, February 24, 2011
Please keep liking me
As other leaders across the Middle East scurry to appease discontented citizens, the king introduced 19 new measures estimated to cost 135 riyals ($36 billion), according to John Sfakianakis, chief economist of Banque Sausi Fransi. The measures address inflation and housing, expand social security benefits, and ease unemployment and education costs – two areas of particular concern to Saudi youths.The article says that King Abdullah is already reasonably popular. You can never be too sure these days, though.
As if they aren't in enough trouble already...
Along the same lines:
Sakana-kun, the fish expert and TV figure well-known for his blowfish-shaped cap, is about to become Japan's "osakana taishi" (fish ambassador) to promote fish consumption and boost the declining industry.... The farm ministry expects Sakana-kun to "send out information" about fish, the fishing industry and related government policies, it said in a statement. Fish has been declining as a staple amid a shift to more Western diets.I don't think the fish feel they need such an ambassador.
Bridge to nowhere
Judith Curry, the climate scientist who started a blog with the stated aim of building bridges between climate scientists and climate skeptics, has revealed that she never intended including those scientists who blog at Real Climate.
This all comes out in the post she finally decided to run on “hide the decline” and the use of tree ring proxies. Gavin Schmidt from Real Climate turned up in comments, and a good slanging match evolved from there.
But I can’t see how anyone can read Curry and think she is genuinely open minded. Her initial post indicates that she is not widely read on the topic, but that she is sceptical that work to date has any value. She ends with (my emphasis):
If there is a problem, lets get to the bottom of it and fix it.
But when Schmidt turns up and complains that, as she’s saying that she agrees with the never-fail- to-bore windbag McIntyre , she’s accusing the scientists concerned of being outright dishonest, rather than having a mere difference of opinion as to how to display information, she responds with:
If you don’t like dishonest, try misguided and pseudoscience.
Gavin further down:
your method of argument in the top post and the conclusions you draw can be argued and drawn for any subjective decision about pretty much any presentation of complex data. Once you do it based on your prior prejudices against one set of researchers, the flood gates are open to apply it to anyone. We therefore end up with a situation where any difference of opinion is put down to dishonesty, and the process of objective scientific analysis has been tossed to the wolves.
You see your stance as brave, while in fact it is just lazy. I’m sure your students are proud.
And further down, when Curry starts making the big sweeping statements that her initial post indicated were only hunches, Gavin writes:
You betray complete ignorance of any of this literature. “Statistical models that make no sense in terms of calculating hemispheric or global average temperature anomalies” – got a cite for that?
curryja | February 22, 2011 at 8:52 pm | Reply
Another zinger, I’m dying here.
And yes, as is her habit, she excuses sweeping statements by telling us her detailed criticisms are coming in a later post.
Her real attitude to Real Climate is shown towards the end of the thread we get this from Curry:
I find it of primary importance to build bridges with the broader community of scientists (including skeptics), the public, and policy makers. I stopped bothering with the RC crowd in summer 2007, when i received an unpleasant email from Mike Mann chastising me over congratulating Steve McIntyre on winning the 2008 Science Webblog Award. It was at that point that I stopped having anything to do with RC (other than my driveby comments about Montford’s book last summer). So I have built a bridge in the form of a platform for dialogue, they can meet me half way or not (pretty much not, the prefer the circling wagons strategy). But that is not the bridge that I am particularly interested in.
But the best summary of Curry’s disingenuous approach in her blog is from dhogaza:
Absolutely spot on.Judith Curry … you’ve used this “my eyes glaze over”, and “it’s outside the arena of my personal expertise” argument before.
Yet … whenever you do, you come down on the side of the denialists.
Your personal philosophy seems to be…
“If I don’t understand it, the anti-science people are probably right”.
Ponder what this means to your personal reputation (whatever is left of it).
Wednesday, February 23, 2011
Christchurch remembered
It’s so very sad to see the devastation and loss of life in Christchurch. This is from my family’s visit there nearly one year ago.
Tuesday, February 22, 2011
James on the moon
It's showing on line at SBS for now, at least.
Expansion noted
Readers in this corner of the multiverse who have not yet realised that I have greatly expanded my rambling post from yesterday about whether or not they are free to kill at will today are hereby referred to my previous post.
Arab analysis
Just a note here that the column by David Hirst in The Age this morning seems a pretty reasonable bit of analysis of the current remarkable goings on in the Arab world.