University of Notre Dame astronomer Peter Garnavich and a team of collaborators have discovered a distant star that exploded when its center became so hot that matter and anti-matter particle pairs were created. The star, dubbed Y-155, began its life around 200 times the mass of our Sun but probably became "pair-unstable" and triggered a runaway thermonuclear reaction that made it visible nearly halfway across the universe....Maybe we just live in a lucky corner of the universe.
Garnavich and his collaborators calculated that, at its peak, Y-155 was generating energy at a rate 100 billion times greater than the sun's output. To do this, Y-155 must have synthesized between 6 and 8 solar masses of radioactive nickel. It is the decay of radioactive elements that drives the light curves of supernovae. A normal "Type Ia" thermonuclear supernova makes about one tenth as much radioactive nickel.
"In our images, Y-155 appeared a million times fainter than the unaided human eye can detect, but that is because of its enormous distance," Garnavich said. "If Y-155 had exploded in the Milky Way it would have knocked our socks off."
Over 40 years ago scientists proposed that massive stars could become unstable through the production of matter/anti-matter particle pairs, but only recently have large-scale searches of the sky, like the ESSENCE project, permitted the discovery of these bright, but rare, events.
Tuesday, January 05, 2010
Big explosion noted
Playtime for lawyers
I didn't realise the French could be quite so silly.
Cool photo
Found this via comments to a Guardian piece on the new skyscraper in Dubai.
New Year in Malaysia
Scores of officers fanned out across budget hotels in central Selangor state before dawn on Jan 1, knocking on doors and detaining unmarried Muslim couples who were sharing rooms, said Hidayat Abdul Rani, a spokesman for the Selangor Islamic Department.
The detained, mostly students and young factory workers, are expected to be charged with “khalwat,” or “close proximity,” which under Malaysia’s Islamic Shariah law is described as couples not married to each other being alone together in a private place.
“We chose to have this large-scale operation on New Year’s Day because many people are known to commit this offense while celebrating such a major holiday,” Hidayat said.
In Selangor, “khalwat” carries a maximum penalty of two years in prison and a fine.
Movies and kids
My 9 year old son is very keen to see Avatar, but I finally checked the rating and found it was M. After speaking to a person who has seen it, I've decided not to take him.
This article quotes someone who believes that:
"...Avatar was not suitable for children under eight ''due to scary and disturbing scenes and violence'', and was ''not recommended'' for children eight to 12.It certainly seems to me that some parents are ridiculously careless about what movies they take their kids to, and I particularly recall my surprise at the number of young boys that were in the cinema when I saw Terminator 2 back in the 1990's. I quite disliked the film anyway, and I suppose you could argue that most of the violence is robot on robot. But killing a guy with a metal spike through the eye, various other breakings of human bones, the general bleak, dark tone of the whole film, and a real lack of any particularly sympathetic characters to my mind made it one of the most obviously unsuitable films for under 10 year olds that I could imagine.''Some of the research indicates that parents don't always know when their kids are handling a movie well,'' said Ms Biggins yesterday. ''There are longer-term impacts on kids that don't always show up at the time.
Basically, most parents seem to pay no attention to the classification a film receives.
Monday, January 04, 2010
Yurt on ice
I haven't mentioned yurts for a while, but I see that the NY Times has an article with a good slideshow about a young family in Alaska who chose to live in one.
It apparently cost about $14,000, looks pretty nice to me, but does have the disadvantage of having an outside toilet and no running water for a shower or the dishes. (They walk to town to do the laundry and wash themselves.) Given that they live in a place that can get 17 feet of snow in a season, even I would draw the line at living with an outside loo in a place like that.
Decline of Great Britain, cont.
This article is mainly about the (to me) surprisingly successful British drama/comedy Shameless. I simply don't "get" the show, yet apparently semi-tragic "comedic" stories of the hopeless unemployed/working class characters of modern day Britain are appreciated by many people. To criticise such a show as being largely amoral and/or condescending is to invite the response that you are merely middle class twit, apparently:
The actor has pointed out that Shameless appeals to all sectors of the audience. "I've had people from right across the social spectrum tell me they get it," he said. "Sometimes reporters ask, 'Don't you think you're being a bit patronising about working- class people?' To which I say, 'Bollocks, you middle-class journalist!' If it was condescending, I'd know, because the people on the estates where we film would come and tell me."But apparently some in Manchester have (finally) started to turn against it:
Bloggers on the Manchester Evening News website are not impressed. "In the beginning, it was edgy and fun. Now it is just tripe, it makes the people of Manchester and Salford look like low-life idiots," complains one..Only now they are starting to realise that?
Annual mochi death toll post gets harder
Well, this year the task is proving much harder than normal, because for some reason it seems that no Japanese news source that publishes on the Web in English has carried the news.
Will this stop your blogger? No. I've had to track down the stories in Japanese, and then use Babel Fish to give the contorted translation. Here we go, from Yoimuri Online via Babel Fish:
The rice cake clogging 2 human death 1 person it is heavy the bodyAnd I think this might only be the problems mochi has caused in just one prefecture. (There's a report of a 60 year old man dying in Asaka.)
The accident where the senior citizens can plug having in the throat one after another, with investigation of the Yomiuri Shimbun Company, in 4 days December 31st - January 3rd, 10 people was carried by the hospital at least inside the prefecture, the inside 2 people died, 1 people became heavily the body of unconscious.According to the National Fire Prevention and Control Administra and the like of every place, 1st around 11 o'clock in the morning, the man of Ichihara city (68) to be carried by the hospital of the same city, prompt the death. 2nd, the man of Funabashi city (61) was carried by the hospital of the same city even around 11 o'clock in the afternoon, died promptly.
In addition, was carried to the hospital 8 man and woman total of 70 - 87 years old in such as Chiba city and Asahi city.
So who knows what the national death toll is? But in any event, the dangers of eating mochi on New Years certainly continue. (And, as with last year, terribly sorry to be sounding as if making light of unfortunate deaths.)
Update: for figures for the New Year 2010/2011, see my latest post here.
Sunday, January 03, 2010
The dangers and benefits of pretending
As the article says, part of the problem is that Western training for actors has come to be dominated by method acting, by which actors are encouraged to internalise and experience the fictional character.
It is, in many ways, a little curious that this has become the dominant idea for actor training. After all, it only came to be popular in the mid 20th century, and at least two of the worlds most lauded actors, Olivier and Guinness, were not into it. Olivier is famously said to have told Dustin Hoffman to "just try acting", or similar words, although the veracity and meaning of that anecdote seems somewhat uncertain now. I am pretty sure it is fair to say that, although he could be extremely thoughtful about what he was doing, Alec Guinness also took a "craftsman" approach to acting which would disdain the need to internalise the role being performed. (I think he also used to say that his approach to acting over the years increasingly came to be one of whittling down the effects to a bare minimum, but maybe that was particularly encouraged by some of the characters he was later to play.) Harrison Ford, who is not the world's greatest actor but has been quite convincing in some serious roles, has also frequently made the comparison to it being a trade something like the carpentry that he did between jobs in his early days.
So if everyone knows that method acting is not essential, why do so many drama teachers still think it so important? I assume that it's because it gives a certain gravitas to the profession that is, after all, a very curious one that is very similar to child's play conducted in public. (Colin Firth, who I don't particularly find interesting as a actor, at least recognizes the semi-absurdity of the job.)
Talking about this reminds me that (I think) CS Lewis said somewhere that if you pretend something long enough, you start to believe it. I can't track down the quote now, but I remember it struck me as important at the time I first read it.
As a an aspect of the human psyche, it is something that can be used in both a positive or negative way. It is related to the idea that a lie repeated enough will start to be believed, but on the other hand, as Lewis said elsewhere: "Do not waste time bothering whether you "love" your neighbour; act as if you did."
Certainly, atheists can use it to attack religious faith as being no more than a matter of thoughtless indoctrination. (A point Lewis would surely have recognized, but you have to also concede that he did his fair share to get people to really think about their faith.)
But from the other side of the fence, it is a principle that can be used to justify a critical attitude of the (barely recognized by younger people especially) Freudian psychology which dominates Western thinking in many ways. Why, after all, should we be so concerned with understanding our subconscious landscape, and giving fulfillment to it, if it is something that can be "tricked" into believing stuff quite easily anyway?
The important point that CS Lewis, and the (now Catholic) philosopher Alisdair McIntyre might make is that Aristotle was right in his assumption "that man is as-he-happens-to-be and that this is distinct from man-as-he-should-be," and that "pretending" to the extent that it helps a person become the person they should be is a worthy thing. I really must get around to reading McIntyre one day.
If method acting made people think about this, it would serve something useful.
Saturday, January 02, 2010
A New Year link miscellany
* The Australian ran an interesting article on one of the oddest UFO cases of the 20th century: the Australian missionary William Gill's detailed report of a sighting in New Guinea in 1959.
The case has received much attention over the years because of it strange combination of improbable details (humanoid figures seen on a platform floating above the mission by a whole group of witnesses) and the apparent believability of the missionary reporting it.
It was a sighting that lasted a long time, which is always immediate reason to believe it is Venus or a similarly bright astronomical object. But how do you mistake a planet as a platform containing a bunch of waving humanoids? Some skeptics have suggested that it was simply Gill's poor eyesight, but if so it's one of the strangest cases of mistaken identity from squinting at a point of light It also would appear that Gill never admitted that it was a hoax. It remains a very odd case.
* Slate magazine remembers Omni magazine with fondness. I'm glad I'm not on my own. At its height, it was a great read that I looked forward to every month, and I think I've still got some editions somewhere in the garage, if the silverfish haven't got to them.
* The Australian continues its bipolar approach to Tony Abbott, whose ascendancy seemed to be greeted with a lot of "Abbott brings the fight up to Rudd" guff, but the paper still has to concede that current polling indicates that regional areas still aren't going Coalition, and by all looks an early election will place Labor in a much better position than it is now. It will be an interesting year in politics.
* From Japan we learn that about university research that indicates that lightning (or just electric shocks) makes for a bigger shiitake mushroom crop. How on earth did the Iwate University come up with that research idea? Must be a distinct lack of things for the electrical engineers to do, is all I can say. (I think I've even walked through their campus too.)
* More depressingly (if you like Japan) it would appear the population dropped again in 2009.
* In the trivia department, I learned from the New Scientist Christmas edition that the Romans used to stew grapes in lead pots "leeching the sweet tasting metal into their food". I knew they used lead for cooking; I didn't know it was sweet tasting. It's rather unfortunate when a toxic metal tastes good.
* Scientific American had a short article on one of the big stirling engine solar power companies. (My early favourite, Infinia, seems to be much slower at getting into big production.)
Friday, January 01, 2010
Thursday, December 24, 2009
Interesting
Found this via First Things. It's quite an interesting article on the origins of the celebration of Christmas, and points that there is another explanation for the date other than it simply being a Christian take over of the Roman mid-winter Saturnalia festival.
There is another way to account for the origins of Christmas on December 25: Strange as it may seem, the key to dating Jesus’ birth may lie in the dating of Jesus’ death at Passover. This view was first suggested to the modern world by French scholar Louis Duchesne in the early 20th century and fully developed by American Thomas Talley in more recent years. But they were certainly not the first to note a connection between the traditional date of Jesus’ death and his birth.
Around 200 C.E. Tertullian of Carthage reported the calculation that the 14th of Nisan (the day of the crucifixion according to the Gospel of John) in the year Jesus died was equivalent to March 25 in the Roman (solar) calendar. March 25 is, of course, nine months before December 25; it was later recognized as the Feast of the Annunciation—the commemoration of Jesus’ conception. Thus, Jesus was believed to have been conceived and crucified on the same day of the year. Exactly nine months later, Jesus was born, on December 25.
Annabel Crabb's charitable column
It's true what she says about politicians and the hours they work, if you take into account all of the party and electorate stuff they have to attend.
I said this to a family member once, who is in the public service, and he pointed out that while it may be tedious to someone like us, for politicians there is an ego stroking aspect of being asked to attend every local shindig.
He could be right.
Charity and the homeless
The Japanese government is getting a bit more involved in providing support for the homeless, but as the articles notes, they are still falling well short of the need:
The impression you get of the homeless when you visit Japan is that they are economic victims who still have some pride. Hence their cardboard box shelters set up in corners of a big train station will be neat, with shoes still taken off and left outside. I can't say that I have ever seen a drunk, rambling or obviously mentally disturbed looking homeless person around such a shelter, as you readily find in certain parts of the inner cities of Australia. (Mind you, I could just not be going to the equivalent areas of urban Japan.)Tokyo and nine other prefectural governments have decided to lease about 500 rooms from places like inns and company dormitories to accommodate homeless persons during the year-end and new year holidays, Kyodo News learned Wednesday.
But the number falls significantly below the welfare ministry’s initial target of securing 2,700 rooms nationwide, apparently because local governments feared too many rooms might lure jobless or homeless persons from surrounding areas, ministry sources said.
I also get the distinct impression that there is little in the way of charities assisting the homeless in Japan, as there are here. I could be wrong; any reader from there can correct me. But the impression I have is that those countries with a history of monotheistic faith have a larger enthusiasm for providing charity, rather than those countries based on Eastern religions.
Your Christmas present from Opinion Dominion
Wow. Oceanography has an entire special issue devoted to ocean acidification with all articles available for free at the link above.
I haven't had time to read it yet, but they are clearly very detailed articles from some of the biggest names in the field.
Wishing you a well informed, if somewhat depressing, Christmas!
Distressing holiday news
Wednesday, December 23, 2009
Christmas in Space
It's nice to think of those far away from family at Christmas, and you can't get much further away than off the planet. The link above shows the current international crew of 5 on the ISS in silly Santa hates, and has lots of stuff to click on. I should send them a greeting I suppose.
Some cure
From the above report:
Studies show hearing loss can go hand-in-hand with over-excitable nerves within brain areas that process sound.
This uncontrolled nerve activity causes the noises that plague people with tinnitus and appears to be down to gene changes, Neuroscience reports.
And it raises the hope of treatment by silencing nerve activity, experts say....
Indeed, Belgian neurosurgeon Dirk De Ridder has tried implanting electrodes directly into the brain of sufferers to permanently normalise the overactive neurons.
He has had some successful results, although one of his patients repeatedly reported an out-of-body experience as a side effect.