A whole bunch of physics (expanded from yesterday edition)

Just when I was thinking "gee, there hasn't been much speculative physics stories around for a while", I find a whole bunch of blogworthy material in one session:

* a couple of University of Queensland guys talk about how quantum entanglement can not just be across space, but across time as well. The crux of what this means is summed up here ( I hope accurately):

Olson and Ralph's teleportation provides a shortcut into the future. What they're saying is that it's possible to travel into the future without being present during the time in between.

Cool. Not dissimilar to a really good night's sleep, though.

* Physics World has a good article looking the LHC after a year, and what it has shown so far, and may yet show. It includes this bit about mini black holes:

CMS scientists have also found no evidence for micro black holes in their 12,500 tonne detector (arXiv:1012.3375). This result, reported just before Christmas, will not have come as a shock to anyone who thinks such black holes will destroy the planet. (For them, it's only a matter of time...) But it has not surprised many physicists either, given that miniature black holes could only appear at the LHC if space has more than three dimensions. So what does CMS's black-hole blank mean for such outlandish pictures of space–time? Can we now simply start ruling them out?

"The fascinating science of black-hole production and evaporation still stands," insists Steve Giddings of the University of California, Santa Barbara, who a decade ago co-proposed the possibility that the LHC might create black holes. "The CMS results begin to rule out the most extreme configurations of extra dimensions, although it is true that such configurations are believed unlikely by many. It's still a possibility that black holes will be made at the LHC, but it's not a prediction unless you know the configuration of the extra dimensions!"

The rest of the article, which mentions string theory and whether or not it can in any respect be bolstered by future findings, is worth reading.

* Physics World has another good article up: a review of a book of essays called Information and the Nature of Reality: From Physics to Metaphysics. Who can resist that?

As the title suggests, the essays get to theology eventually:

The problem, of course, is that once we leave the scientific domain, it becomes rather easy to make unfounded speculations about the connections between information and various other religious concepts. For instance, in the last chapter of this book we encounter suggestions that the Christian Gospel of John could be interpreted in information-theoretic terms. Similar parallels are drawn in the essay by Michael Welker, who discusses the information content in the resurrection of the Christ. Carelessly extrapolated, this sort of exposition might lead to arguments similar to Frank Tipler's nonsensical "proofs" of various Christian dogmas in his two books The Physics of Immortality and The Physics of Christianity. Amusing as such parallels might be, it is doubtful that they will ever lead to any greater enlightenment as to the nature of reality itself.

Speaking of information and the gospels, I remember a conversation I once had with a Catholic quasi-girlfriend (I'm not sure we ever quite agreed on her status) in which I complained that, if God wanted Jesus to be seen as convincingly divine 2000 years after he trod the Earth, it would have been handy to have some bits of science thrown in the Gospels, like this: "Consider the water. Little do you know that the air you breath has the essential parts that, when joined together, two parts to one, make the water that will quench your thirst." Of course, the possibility is that Jesus did make references to science all the time, but the Gospel writers found them so silly or incomprehensible that they refused to commit them to paper. Or it may be that something like advanced games theory means it's really quite important for humanity not to have the certainty of God or an afterlife staring them in the face all the time. The temptation to keep killing others for perceived wrongs and let God sort it out on the other side might be too much. There are no doubt other theories around.

* Don Page, a Christian physicist who I have mentioned before, has a new article out arguing against the universe we find ourselves in being fine tuned for life. As Bee Hossenfelder notes, Don uses this argument as support for his fondness for a multiverse, ending his paper this way:

"It could be taken as negative evidence for theists who expect God to fine tune the constants of physics optimally for life. However, for other theists, such as myself, it may simply support the hypothesis that God might prefer a multiverse as the most elegant way to create life and the other purposes He has for His Creation."

By the way, physicist Bee's own universe has expanded lately by the birth of twins. Congratulations are in order.

We think we've found the problem

In Australia, a news story about the how often the population is having sex will more than likely be based on some women's or men's magazine unreliable reader survey.

In Japan, however, the government appears interested enough in its citizens to conduct the research itself. (Presumably, because of its soon to be rapidly declining population.)

So, what does the latest survey reveal?:

One-third of Japanese men aged 16 to 19 were uninterested in or even averse to sex as of last year, double the number from 2008, a government survey showed Wednesday.

Well, one suspects that this is misleading, unless the survey specified that "sex" means "with another person."

Anyhow, the interpretation of this is given as follows:

‘‘The survey result confirmed that young men have become ‘herbivorous’,’’ said Kunio Kitamura, head of the Clinic of the Japan Family Planning Association who took part in the survey, using the term used increasingly in Japan to describe young males who are shy and passive in relationships with women.

According to the ministry, 35.1% of men aged 16 to 19 said they are uninterested in or averse to sex, surging from 17.5% in the previous poll in 2008.

The percentage climbed to 21.5% among men aged 20 to 24 from 11.8% two years earlier, and among women of any age group, the survey showed.

Those married men and women who said they had no sex in the past month totaled 40.8%, up from 36.5% in the previous survey and 31.9% in a 2004 study.

As for the broader relevance of this: I read recently that Japan, Korea and Taiwan were amongst the lowest birthrate countries in the world. I'm pretty sure they all have very fast and pretty cheap internet access. Has anyone done the research into fast internet access and birthrates across the world??*

Any proper evaluation into Australia's National Broadband Network clearly should consider its population effects in 25 years time.

* I guess fast internet is unlikely to be the explanation for Russia's birthrate, but fast vodka may well have something to do with it.

Victorian murder

As noted in Arts & Letters Daily, there's an amusing review in the Spectator of a book about Victorian England's cultural enthusiasm for murder as a virtual entertainment. It puts our current TV obsession with all things criminal and forensic into perspective. I liked this bit about journalism of that period:

Anyone who thinks the 21st-century tabloid represents some sort of journalistic nadir, for instance, will find this book a bracing corrective. On the contrary, we live, it turns out, in a hitherto unexampled golden age of truthfulness and integrity.

Even proper 19th-century newspapers seethed with class bigotry, and routinely printed rumour as fact without thought to prejudicing a trial. What are now called ‘backgrounders’ would report that the accused robbed corpses in battle, spent his childhood torturing dogs, or had ‘been known to twist a whipcord round a horse’s tongue, and tear it out by the root’.

If facts weren’t available, they’d be invented. The Morning Chronicle, Jackson’s Oxford Journal, John Bull and the Bristol Mercury all reported solemnly that Mary Ann Milner had ‘conducted herself with much composure’ at her execution. This stretched plausibility, considering she’d committed suicide in her cell the night before. Even the illustrations were, more often than not, stock images appended at random: the purported likeness of one murderer, it was pointed out, was actually a portrait of William IV.

In terms of modern journalism, I would say that the Times of India has not entirely shaken off the Victorian template. Detailed background of a death or crime (such as the family dispute that led to it) are frequently reported in a way that is not common in Australia now. Let's see if I can find a current example. Here we go: look at the amount of detail that goes into this (alleged) rape report. The accused getting a fair trial after such publicity seemingly is of no concern in the country.

A good thing to avoid

Just file this under "things I didn't know" (or perhaps more likely, "something I had once read but forgotten"):

Women who have had chlamydia are at greater risk of an ectopic pregnancy because of a lasting effect of the infection. A new study provides evidence for the first time of how chlamydia can increase the risk of an ectopic pregnancy .

And just how "popular" is this disease? According to a report just a few days ago, quite:

Sexual health experts are demanding the Federal Government urgently fund a national screening program for chlamydia after figures showing infection rates have more than tripled in 10 years.

More than 61,000 people were diagnosed last year, up from about 17,000 in 2000. About 14,500 were diagnosed in NSW alone, the second highest rate in Australia.

More than half those infected were aged 20 to 29 and a quarter were aged under 19.

Not a flood post

A few things that have come to my attention:

* Richard Ayoade (Moss in the IT Crowd) seems to genuinely be a self-effacing, likeable person in real life. With a funny voice.

* Falling pregnant in zero gravity may well be difficult, and not good for the embryo if achieved, reports New Scientist:

What does seem clear is that space travel affects reproduction. Joseph Tash, a reproductive biologist at the University of Kansas Medical Center in Kansas City, examined 16 female mice that travelled aboard NASA's STS-131 mission last year. He found that the mice had shrunken ovaries, dying ovarian follicles and down-regulated oestrogen genes. Their reproductive systems "had shut down", he says.

This is dangerous news: I can see that space based teenage boys will use this as an excuse with their space based girlfriends not to use condoms.

* In other vital space news, it turns out that radishes, and even lettuce, do very well even after being exposed to near vacuum for 30 minutes:

After the team returned the pressure to normal, all the plants continued to grow until being harvested a week later. The plants appeared to be just as healthy as another set of plants never exposed to low pressure, with no significant difference in weight

If only Dave had a radish that could turn off HAL, 2001 could have ended very differently.

* I've started watching American sitcom The Middle. It's quite likeable, I think, even if not necessarily a laugh a minute.

Around the flood

This is how the week developed since my last post on Wednesday morning. (Feels longer ago than that, but experiencing novel events has that effect.)

There were plenty of warnings on Tuesday evening that the Brisbane flood could be very big – equal to, or even slightly higher, than the 1974 flood. However, since I had been told by long term residents that the group of shops in which my office is located had only taken water up to the car park (which rises about 1 – 2 meters above the street level) in 1974, I wasn’t too anxious. Indeed, the Council flood maps on the internet that evening indicated that the local knowledge was right.

However, on Wednesday morning, Lord Mayor Campbell Newman said on TV that they had revised the maps overnight, and people should check again if their homes or businesses could be affected. And yes, when I checked, the flood line had been moved just enough to indicate that my office/shop area were in danger.

I was not much encouraged when, getting to the office at about 8.15 am, the artificial lake within about 30 metres of my shops (and which had not been there in 1974) had already flooded across the road as far as the eye could see, and this was still 12 – 18 hours before the predicted peak. One house on the far side of the lake already looked to have a couple of meters of water over its ground floor.

It seemed prudent to remove the computers and take them home. This didn’t take too long, but then nearby residents mentioned that the road between me and my home, which I already knew was cut in one direction I could take, was now getting inundated (via the backflowing stormwater drains) in the other direction. If I waited too long I might not be able to get home at all.

I therefore left in a hurry with a lot of things left on the office floor. In any event I had to go pick up my mother from her retirement village, which I had been told was going to be evacuated as a precaution as well.

As I drove away from the office, there was quite a lot of activity in some lakeside houses to get furniture onto vehicles. Further along, I could see water over the road at the top of a side street which I knew led down closer to the lake. Many expensive houses down there would clearly already be inundated, and it was only about 9 am.

The main road just a little further along did indeed have a foot or so of water over it, but only for a short distance. I went and collected my mother, noticing the water was already down the far end of her street.

I got her home, which was already hosting another family (friends of ours with children) who had left their home in another flood prone suburb across the river and stayed with us on Tuesday night.

At about 11.30am, I drove back to see if I could get to the office, but the road was now covered with about 2 – 3 feet of water and the police were there, really only wanting to let residents through. It was not worth the risk.

So by midday I was back home, watching TV and wondering why coverage seemed very centred on inner city suburbs (such as Milton and Rosalie) and then leapt over to Ipswich and Goodna. I did feel slightly indignant that my already well flooded suburban area was not rating much of a mention.

Around 2 pm the power went off and stayed off for about 24 hours. I had telephone calls from friends near the office who said water had started coming up out of the stormwater drains in front of the carpark.

As Australian readers would know, the flood peak overnight on Wednesday was about 1 to 1.5 m less than they had predicated. In fact, I think by Wednesday afternoon, they knew that the river at Ipswich had peaked well under the forecast, so I did relax a little. Still, I was very glad to be able to get to the office on Thursday morning to see that, as in 1974, the flood water stopped in the car park driveway. If the peak had been as forecast, it would have been a very close call as to whether water would have entered the building.

The number of houses around my area which were flooded has surprised me, particularly around the lake, and in another area around a golf course. I’m not sure when they started selling lakeside land, and it may well have been before the Council restricted building homes on levels below the 1974 flood. But certainly, this would have been the first time since then that they faced a major flood, and I expect that many were surprised that the lake was capable of such a rise. There are certain other streets in the suburbs near mine which I am sure would only contain houses built since 1980, yet have dozens of houses flooded. I am sure there will be some questioning of the Council flood level advisory maps after this.

On Thursday afternoon, when the water had already dropped by a meter or so, I was able to get around a bit and take some photos. The quality may not be great, but clicking might make them a bit bigger:

One of the main local roads; houses down the street on both sides had plenty of water through them.

The road along my Mum’s retirement village. I was told houses down the far end had at least a meter of water through them. (You can also see the "high water"mud mark nearly half way up on the row of bushes on the left.) The retirement village was spared, again with water just reaching the car park entrance.

On the left, well under the water, is the entrance to a boat ramp, playground and picnic area, none of which (including the roof of the toilet block, on the higher part of picnic area) could be seen. I think that’s the rear wheels of a car floating upside down near one of the light poles.

Next, my inner anti-sporting grump was not too shocked to see the Little Athletics club house and grounds, which I have been a reluctant attendee with my daughter on Friday nights last term, has had a make over:

Now for the best big flood scenes near me:

Highway in foreground, with shops in the distance. Closer detail to be seen in the next photo (remember, the water had already dropped by this stage):

And for last, the difference a day makes in a flood. Here’s a photo from roughly the same position late this afternoon:

I know the flood effects for me was nothing compared to all those who did have homes and businesses under water, and who may remain without power for days yet. Still, one brush with a flood this size is enough to satisfy any curiosity about what it’s like to be near a natural disaster.

Floods

Brisbane's floods will not directly affect my house, but certainly I live and work in suburbs which will have houses inundated. (There would seem to be a chance my office may be cut off, although it did not quite go under in 1974.)

This has been a strange disaster. For those who have seen the footage of the Toowoomba flash flood: this is not a town, sitting as it does on top of a range, that is known for such flooding.

As for the Lockyer Valley disaster - yes, people know it has creek and river flooding, but again, nothing like what has been seen on TV yesterday. It is amazing to think that the death toll may climb into the dozens.

The rain has stopped since yesterday afternoon, which is one thing at least. But it does feel odd, knowing that a large volume of water is still headed to the city. At least people will probably start to feel easier that the Wivenhoe dam will not be breached. At 190% capacity (for a dam built to go to 225%), some people were definitely wondering about that yesterday.

There will be many people who cannot work today. I may be distracted for a little while.

I may be a man, but I’m not taking any chances

WOMEN who habitually take strenuous exercise might be at risk of damaging their cognitive function later in life.

Steve's stupid but brilliant idea of the day

Brisbane and much of Queensland has been incredibly wet this summer, with thousands of homes flooded, and hundreds of thousands of parents with school children depressed that the kids have inside continuously for the last 4 weeks.

Now we get news that:

The Australian Building Codes Board is preparing the first technical standards for construction in areas liable to flooding.

Excellent. My plans for all flood prone houses to be Queenslander style built on pontoons may get a run yet.

Child-like drawings to come, as well as a photo of the really weird slug found on a tree yesterday at Mt Glorious during a break in the torrential rain. Yes, my wife was that desperate to get out of the house.

Update: here's the slug. (Easily 6 - 8 cm long):


As for the floods generally: amazing and pretty horrifying scenes of flash flooding in Toowoomba was on the news tonight. Two people were killed in a car swept away (I assume, not one of the cars in this video). Here's an amateur video from the town:



I see that Lord Mayor Campbell Newman is saying that it is only the Wivenhoe Dam, which is full and letting go of a lot of water, that is preventing Brisbane from having the equivalent of a 1974 flood. There is actually some talk now of it being the biggest floods Queensland has ever seen, but exactly how you compare these things I'm not sure.

Make friends and influence people the Anglican way

There was a short story in the Courier Mail this morning about how the Anglican Church in Brisbane is looking for more, younger recruits to the priesthood. Apparently there is a shortage. I thought, last I heard, that they actually had quite a lot of women priests to spread around their increasingly dwindling congregation, but maybe not.

Anyway, the main point of the post is to note that this comment:

Executive director of Brisbane's ministry education commission, Reverend Steven Ogden, said the priesthood was desperately in need of educated men and women.

"We need university students with sharp minds, not the stereotypical, eccentric weirdos," he said.

I can only assume Rev Steve must have missed the sensitivity training day at theological college (or whatever it is Anglican clergy in training attend.)

UPDATE: I should have noted that the other possible explanation (in fact, probably the most likely one) would be an out of context quote by the Courier Mail. See comment below.

Graph noted

This graph appeared recently on a Scienceblog and has evidently been around for a long time. (Original source is Global Warming Art.) It is good, though, don’tcha think?:

New York Times finally gets ESP

The NYT website, at least, is featuring prominently the story of soon to be published ESP experiments of Daryl Bem.

You read about them at this very blog back in October. It takes a while for international journalism to catch up with me.

One small aspect of the experiments is a little amusing:

A software program randomly posted a picture behind one curtain or the other — but only after the participant made a choice. Still, the participants beat chance, by 53 percent to 50 percent, at least when the photos being posted were erotic ones. They did not do better than chance on negative or neutral photos.

“What I showed was that unselected subjects could sense the erotic photos,” Dr. Bem said, “but my guess is that if you use more talented people, who are better at this, they could find any of the photos.”

Every politician should have one

Romania is planning on taxing its witches, according to The Guardian. But they are fighting back:

Queen witch Bratara Buzea said she will lead a chorus of witches in casting a spell using a concoction of cat excrement and a dead dog.

Interestingly, the report goes on to note:

Such spiritualism has long been tolerated by the Orthodox Church in Romania. The late Communist dictator Nicolae Ceausescu and his wife, Elena, had their own personal witch.

Well, at last I understand the best role for this woman in the Australian parliament.

From the "only in Saudi Arabia" files

In the Gulf News:

Riyadh: A squad from the Department for the Promotion of Virtue and Prevention of Vice has raided the house of a Saudi man following a tip off that he is practising sorcery.

It was reported that the suspect has bewitched a girl and married her without the knowledge of her family.

Following investigation, the suspect was put in jail, awaiting trial. Saudi Arabia applies capital punishment for sorcery.

The incident, which took place in Riyadh, came to light when a security guard, working for a private company, accused a fellow citizen of bewitching his daughter and his other family members and used magic to marry the girl without a marriage contract.

And the report ends:

The Department for the Promotion of Virtue and Prevention of Vice [gosh, that's an appealing name for a a government department, isn't it?] said it is conducting awareness programmes against the practice of withcraft.

Now there's a lecture that would be interesting to see.

The other funny thing is that, in the same edition of Gulf News, we can also read:

Saudi Arabia confirmed on Tuesday it plans to buy more F-15 fighter jets as part of a massive arms deal which the US State Department said in September could be worth up to $60 billion.

This is a tad odd, isn't it? If the government believes in sorcery enough to be giving public education programs and killing people for it, why do they need 20th century jet fighter technology to protect themselves? Can't they train up a crack elite squad of good sorcerers who will, I don't know, stand at the border and make the enemy forget that Saudi Arabia is there?

Now, although it's no fun to be fair when poking fun at Saudi Arabia, I suppose I should acknowledge that England was prosecuting Helen Duncan under the Witchcraft Act in 1944. However, as Wikipedia explains, this for the offence of fraudulently claiming to be procuring spirits. Still, it would appear that you could say England officially believed in witches until that act was repealed in 1951.

So, maybe I'm being unfair about Saudi paranoia. Let's see: what else is there in Gulf News today?:

Saudi nationals have seized a vulture wearing a Tel Aviv University tag and a transmitter, prompting speculations that it was used by Mossad, the Israeli spying agency, to gather intelligence on the area....

The vulture was handed over to the Saudi security.

According to Israeli media, the tags indicated that the six-year-old bird was part of a long-term research project into migration patterns.

No, clearly this is just a country that has been left out in the hot sun for too long.

The bugs, they’re all over me!

Those who are inclined towards itchy self consciousness after reading about the amazing variety of life to be found living on and in our bodies should probably not read The top 10 life-forms living on Lady Gaga (and you).

I thought I had heard of most kinds of bugs that live in and on us before, but the article still contained a few surprises (or things I had forgotten about.) For example:

Inside your lungs is a kind of fungi called Pneumocystis. It cannot live outside of human lungs. No one has been able to grow it anywhere else.

And (emphasis mine):

I will wager that Lady Gaga’s head is crawling with mites. They live in her pores and come out to have sex under the shade of her wig while she is on stage. Well, not just then. They do it other times too. She could have more than one kind of mite. Forehead mites (Demodex spp.) have not been well studied and they are so small that differences among species might be impossible to detect simply by studying how they and their parts look under the microscope (which is all that has been done). Where these mites have been studied, they have mostly just been counted. They are more common on older people than on younger people. The exception to this pattern is among the Tokelau islanders where the pattern is the reverse (more mites on younger people) for reasons unknown. On average--the Tokelau Islanders in the audience notwithstanding--more than half of us have forehead mites and quite a few of us host two species. Some of us may even host as of yet unnamed species. Every so often these mites are badly behaved (they are linked to rosacea, although innocent until more convincingly proven guilty), but mostly they seem to have no effect on our lives. Maybe they are even good for us? Who knows? What is clear is that they bury themselves in our pores and eat.

Update: you can read more about face mites here.

Actually, I did recall reading before about a particular mite that lives in the base of eyelashes, and it turns out they are the same thing. I was just a bit confused by them being called "forehead mites". Wikipedia notes:

It is quite easy to look for one's own Demodex mites, by carefully removing an eyelash or eyebrow hair and placing it under a microscope.

Umm, not sure I want to know, when they look like this:


As for their possible role in rosacea, it's interesting to note this (from a couple of links back):

Over the years, considerable evidence has accumulated that Demodex folliculorum may at least play a role in certain skin conditions, particularly papulopustular rosacea. Patients with immunity problems, such as AIDS patients, appear to be particularly susceptible. Symptomatic infestation with demodex mites is called demodicidosis or demodex folliculitis.

While the role of demodex in disease is still unclear, treatment for skin problems in cases where there are many mites present now often includes a topical antiparasitic cream. Treatment successes where the mites were targeted provide further indirect evidence that face mites cause skin problems, at least in some instances.

Excuse me while I go practice how long I can hold my breath while keeping my head in a bucket of rubbing alcohol.