Monday, March 27, 2006

Prime numbers, Zeta functions, and quantum mechanics

Seed magazine has a very readable article that provides a 200,000 foot view of the relationship between number theory and quantum mechanics: Seed: Prime Numbers Get Hitched. I do wish Du Sautoy had mentioned whether this had any implications for cryptography; I believe current techniques rely in part on the technical difficulty of factoring large numbers. Naively one might think a breakthrough in understanding prime numbers would not be all that great for the stock market.

He mentions by way of background Riemann's role in anticipating general relativity, and also describing the Zeta functions that play a role in both QM and prime number theory. If we do reconcile general relativity and quantum mechanics, it would not be amazing if Riemann should turn out to be a common source. I have a bit of a personal connection here. As a high school student, back before there were photocopiers, I gave a talk on non-euclidean geometry. I don't believe I've subsequently worked my feeble brain as hard as I did preparing for that presentation. I doubt much of the class got anything from it; I could just as well have delivered it in ancient Greek. All the same, Riemann made a lasting impression on me.

At one point in my brash days I foolishly dismissed the uncanny connection between mathematics and physics with some "clever" phrase that I mercifully don't remember. I apologize to my victim. I've long since joined the ranks of those who find the relationship more than a bit unsettling.

Do not use IE until latest bug is fixed

The trick is hackers break into legitimate web sites and then set the trap that uses IE to put bots on home computers. I use Firefox for my own browsing, but at work I need to use IE for internal sites. That's probably OK for now. If you use IE you might consider installing and using Firefox instead for the next week or so. The install is very simple and clean, so it's easy to uninstall or just leave it lying around for weeks like this one.
Security Fix - Brian Krebs on Computer and Internet Security - (washingtonpost.com)

More than 200 Web sites -- many of them belonging to legitimate businesses -- have been hacked and seeded with code that tries to take advantage of a unpatched security hole in Microsoft's Internet Explorer Web browser to install hostile code on Windows computers when users merely visit the sites.

In an update to its Security Response Web log, Microsoft security program manager Stephen Toulouse said the attacks Redmond is seeing against the IE flaw 'are limited in scope for now and are being carried out by malicious Web sites.'

I have to call Microsoft out on both counts, and I think some of what I've uncovered so far about these attacks should make it clear that the situation is serious and getting worse by the hour.
I assume IE on the Mac is safe, but there's not much IE use on Macs any more.

Sunday, March 26, 2006

The myth of the skilled worker shortage

The NYT attacks the hoary nostrum that education and retraining is the answer to layoffs (emphases mine).
Retraining Laid-Off Workers, but for What? - New York Times

... Saying that the country should solve the skills shortage through education and training became part of nearly every politician's stump speech, an innocuous way to address the politics of unemployment without strengthening either the bargaining leverage of workers or the federal government's role in bolstering labor markets.

But training for what? The reality, as the aircraft mechanics discovered, is painfully different from the reigning wisdom. Rather than having a shortage of skills, millions of American workers have more skills than their jobs require. That is particularly true of college-educated people, who make up 30 percent of the population today, up from 10 percent in the 1960's. They often find themselves working in sales or as office administrators, or taking jobs in hotels and restaurants, or becoming carpenters, flight attendants and word processors.

The number of jobs that require a bachelor's degree has indeed been growing, but more slowly than the number of graduates, according to the Labor Department, and that trend is likely to continue through this decade. "The average college graduate is doing very well," said Lawrence F. Katz, a labor economist at Harvard. "But on the margin, college graduates appear to be more vulnerable than in the past."

The Labor Department's Bureau of Labor Statistics offers a rough estimate of the imbalance in the demand for jobs as opposed to the supply. Each month since December 2000, it has surveyed the number of job vacancies across the country and compared it with the number of unemployed job seekers. On average, there were 2.6 job seekers for every job opening over the first 41 months of the survey. That ratio would have been even higher, according to the bureau, if the calculation had included the millions of people who stopped looking for work because they did not believe that they could get decent jobs.

So the demand for jobs is considerably greater than the supply, and the supply is not what the reigning theory says it is. Most of the unfilled jobs pay low wages and require relatively little skill, often less than the jobholder has. From the spring of 2003 to the spring of 2004, for example, more than 55 percent of the hiring was at wages of $13.25 an hour or less: hotel and restaurant workers, health care employees, temporary replacements and the like.

That trend is likely to continue. Seven of the 10 occupations expected to grow the fastest from 2002 through 2012, according to the Labor Department, pay less than $13.25 an hour, on average: retail salesclerks, customer service representatives, food service workers, cashiers, janitors, nurse's aides and hospital orderlies.

The $13.25 threshold is important. More than 45 percent of the nation's workers, whatever their skills, earned less than $13.25 an hour in 2004, or $27,600 a year for a full-time worker. That is roughly the income that a family of four must have in many parts of the country to maintain a standard of living minimally above the poverty level. Surely lack of skill and education does not hold down the wages of nearly half the work force....

... By the spring of 2004, however, out of more than 800 mechanics from United who had gone through her program or were still going through it, only 185 were working again.

Despite their skill, 33 of those 185, or 18 percent, were earning less than $13.25 an hour working in warehouses, on construction jobs, in restaurants or in retailing. Some were "throwing boxes," as the mechanics put it, for FedEx, which paid them only $10 an hour at its shipping center in Indianapolis. They took the work, which entailed loading and unloading air freight packages, for two reasons: FedEx offered them company-paid health insurance, which some of the mechanics desperately wanted, and they saw in the job a gamble worth the hardship, given the glum alternatives.

... Of the 185 mechanics back at work in the spring of 2004, most earned $14 to $20 an hour as heating and air-conditioning repairmen, auto mechanics, computer maintenance workers, freight train conductors (CSX happened to be hiring) or cross-country tractor-trailer drivers, having graduated from a two-week driver-training course offered by Ms. Bucko's people.
Economists have seen this coming for a while. It's likely to get much worse, and this article should be read alongside a recent review of the status of the black American male. Black men are the 'canary in the mine' -- they suffer first.

My prescription? Glad you asked!

1. Universal healthcare in a multi-tiered system. (The universal care is "good enough", not "the best".)
2. Increased taxes on high earners and large asset holders.
3. Reinstate the estate taxes.
4. Universal 401K style savings that can be used both for retirement and for savings. Tax free accumulation on investments, when withdraw you pay taxes at current levels. (Zero if unemployed).
5. Make it easier for people to leave the labor market (see #1).
6. Eliminate any tax features or acccounting rules that in any way encourage outsourcing.
7. Measure what's happening and publish the results.
8. If #1-#7 aren't working, then get radical.

#7 seems obvious, but my recollection is that Bush has eliminated much of this measurement.

The last good toaster?

Toasters are a "missing middle" casualty. China wiped out all the middle and low end products, replacing them with very inexpensive and (as of two years ago) very unreliable toasters. I call this the "missing middle", because afterwords one ends up with the low end (with a great drop in average price) and the luxury/professional market. Alas, I usually buy in the "middle", so this is a bad outcome for me -- even though it's a good thing for most consumers.

In fact, with toasters, it seemed the "high end" had disappeared as well ( commercial toasters too big for our kitchen). I've visited various specialty stores, and the toasters were all made in China there too. They seemed as flimsy and unpromising as the much cheaper models sold in my neighborhood hardware store.

I figured I'd just have to wait until "made in China" came to mean quality products, just as "made in Japan" is today. Or until some retailer rediscovered the value of a "quality brand". I think brands are going to make a big comeback in the next 12 months, so that's not too long to wait.

Today, however, it occurred to me that Germany, with its protected markets and manufacturing inclination might still have reliable toasters. So I changed my toaster search to include "made in Germany". Which led to this Rowenta toaster.

It's a luxury solution of course, I didn't expect to find the "missing middle" in the export market. The electric motor is silly, and the price is steep -- though in the range of the "made in China" items sold in specialty shops. So, at least on the net, there is still a "Mercedes toaster".

Update 3/31: I struck Zeitgeist. Slate has a review of toasters out now. They found an interesting mid-range option. Some of the brands seemed to be going for "quality" too ...

Update 4/14/07: At least some of the components for some Dualit toasters are made in China, though it's "assembled in England". See the comments for more details, including this excellent comment:
Sorry to burst the bubble but the Dualit (at least the Vario 20293 Chrome) may be "assembled in England" but the parts are from China. Check out wholesale site on the internet to see the product country of origin. I bought one, the timer failed after about 3 months, when I opened up the toaster the timer clearly was labeled "made in China". I think that Dualit is assembling them in the U.K. but is using "globally sourced parts" (the new euphemism for Made in China). Buy a cheaper toaster it'll be made in China too but at least it'll say so on the outside instead of on the inside.
Amazon has complaints about early failures in the Dualit. There may simply be no escape from this trap. Maybe we'll all stop eating toast, or go back to the days of holding bread over an open flame.

Update 11/30/07: It's truly hopeless. Bigeejit writes in comments (emphasis mine):
Interesting post! I'm German, and I'm looking for a toaster not "Made in China". It's a nightmare.

Take a closer look at the parts inside of a toaster! Even it's an European or German brand toaster like a Bosch, Siemens, Krups, Rowenta, Braun, Tefal, Moulinex one... most of them look the same, and they are "Made in China".

I believe most of the toasters are manufactured in the same one Chinese plant. Each brand just gets a different plastic cover slipped over.

Well, I'm not willing to pay a high price for a German brand toaster manufactured in China.

@John Gordon: Rowenta is no longer a German brand since 1988. Today the brand is owned by SEB Group (France), and Rowenta toasters are "Made in China", too. Even the Rowenta toaster you mention.
Update 3/17/09: Professional toasters are still made in the US. From comments (Drawde):
.. There is still a toaster MADE IN THE USA. It's made by Star Mfg in MO, actually their toasters are made in TN.

These are heavy duty restaurant quality units. Our 4 slice weighs about 20 lbs, so keep that in mind in terms of storage, lifting etc.

We have the ST04 model, which I think has been replaced with a newer model designation, but I checked with the rep today and she said they are still made in TN.

They can be repaired even at a restaurant repair facility if need be, you can actually buy parts for them as well! Imagine! Of course the bad news, they are not cheap.

I think the 2 slice model is around $350 and the 4 slice $550 online. We actually picked up ours used on ebay for about $150...
Now I know what i want for my birthday ...

Update 6/25/11: This old post still gets comments. Today a vistor suggested toastercentral.com:
... the place to find and buy vintage and collectible kitchen appliances by Sunbeam, Toastmaster, Dominion, Kenmore, Arvin, Westinghouse, General Electric, Manning-Bowman, Universal and other makers from the Golden Age of chrome and bakelite...
The site appeal is primarily aesthetic, but they had a 1950s toastmaster that looked like it would be excellent. Sold of course.

Update 3/3/2012: Six years later, it all makes sense.

Saturday, March 25, 2006

The law of large numbers: identical fake email addresses

Real.com was infamous for abusing users of their "free" audio clients. Spam, nagware, inline obnoxious ads, intrusive reminders, seizing file ownership, quasi-spyware -- the whole nine yards. Bad news.

Alas, the BBC uses RealAudio.

I'd heard RA had reformed out of desperation and litigation, so I downloaded the Mac client. You STILL have to provide an email address, so I provided my usual fake address: nospam@nospam.spa.

It was in use.

So I tried nospam@nospam.nospam.spa.

In use.

Then nospam.nospam@nospam.nospam.spa.

In use.

Finally nospam123.nospam@nospam.nospam.spa

That worked.

I want to know how many clones I have, and how many are a substantial improvement upon me.

Friday, March 24, 2006

The Economist. Adieu.

Twenty years ago I began my subscription to The Economist. I had my first real job, as an intern (aka "first year resident) in family practice. I could afford The Economist.

The first 10 years were superb. Then things began to slip. There were still some fabulous issues though. Their millenium issue was unequalled. Alas, from 2001 onwards it was downhill all the way. The Economist managed to be shocked by Clinton's extramarital affairs; a bit rich for a magazine better known for its libertarian bent. The US coverage grew, the international coverage shrank, and about four years ago they brought in a total moron as "Lexington".

Now they've made the moron their editor.
Crooked Timber � � White smoke at the Economist

... I have to say that my first reaction is to wonder whether it’s too late to cancel the recent renewal of my Economist subscription. I expect the Economist to be vehemently pro-market, but by reading certain kinds of stories with a skeptical eye, and by skipping past certain others, you can find a lot of value in its pages. It has a clear ideological bias, but it isn’t usually actively dishonest. But Micklethwait, together with his scrofulous sidekick Adrian Wooldridge, was responsible for The Right Nation which is one of the lazier and more dishonest books on American politics that I’ve had the misfortune of reading in the last few years, and for the Lexington column which has shown a pretty reliable track record as a purveyor of Republican talking points. There are still a lot of very good people working for the magazine – but I worry that it’s about to undergo a quite substantial deterioration in intellectual quality.

Update: It’s Micklethwait as expected.
CT is too young to know that today's Economist is a mere shadow of its former self. The deterioration is well underway, and now it's a race to the bottom. Happily, over a period of a few years, I've been preparing myself to say good-bye. I'd decided earlier this year not to renew, but I was waiting for the editorial announcement before ordering my alternatives. I will substitute The Atlantic and Scientific American for The Economist. Newsweek has been doing well lately, I'll start reading that online.

Good-bye, The Economist. You were great once, but you have gone the way of all things.

Danger: Addictive temptations from the BBC

I'm becoming a frothing mad lunatic fan of the BBC Radio 4 show In Our Time. I want to buy a T-shirt.

Damnedly, you can't download all the old programs to put them on an iPod. Here's the archive -- full of untouchable goodies for online access only. What am I supposed to on my commute, listen to mere NPR? (I used to like NPR, but now it's fit only to wrap the fish. I've seen the light.)

Maybe it's time for me to get some use out of 'Audio Hijack Pro'. Surely such misuse can't be immoral given the need to elevate my mind.

Let's not even glance at Radio 4's science archives or their history selection. Arggghhh.

Update 3/27/06: I can say that, theoretically speaking, Audio Hijack Pro (AHP), works very well for transferring the archival streams to an iPod. I suggest capturing as 'mono' with a bit rate of 64 kpbs. I use bookmarkable AAC so I can readily return where I left off.

The result is about the same size (20MB) as a podcast. It won't show up in the podcast menu on the iPod (since it's not), but it's easy to create an 'In Our Times' playlist that includes both the shows delivered via podcast and those delivered via AHP. You need the RealAudio client, which is now tolerable.

Read the section in the AHP documentation for tips on configuring capture from RealAudio; you'll do much better than flailing about. Using AHP properly you can set all the tags up in advance, including autonaming the saved file with the title tag using the %name% variable. You can also set the time to 45 minutes and auto-stop on silence. When you're done turn 'record' off and then drag and drop the file onto the "In Our Times" iTunes playlist icon you created.

AHP is slighly flaky. It caused problems on my iBook when the laptop went to sleep with AHP running. Just restart after use.

Theoretically speaking, it's quite easy to build up a a library of a large number of these sessions and catch up on years of IOT one commute at a time. Zoroastrianism is quite good, for example. Actually they all are. I'm awed.

Ask a stupid question ...

A pompous general questions the patriotism of a journalist who writes about national defense. I wouldn't have used his response, but there's something to be said for it:
Early Warning by William M. Arkin - washingtonpost.com:

.... General: 'Mr. Arkin, do you consider yourself a journalist or an American.'

I took a drink of water as my blood boiled.

Me: 'Well General, because I am an American, I cherish the fact that I can call you a f***ing idiot for asking the question.
I'm too genteel to answer that way, and it did get his military sponsors in trouble which seems a bit impolite, but I see the point ...

Graphene, quasiparticles, anyons and quantum braids

Two days ago, I read a popular news report on graphene, a form of carbon with novel properties. In particular it appears to allow one to experiment with quasiparticles, a family which includes not only our familiar bosons and fermions but also, perhaps, anyons. In the article electrons were said to move within the two dimensional graphene surface at relativistic speeds. Here's an article, but it's not what I read.

Yesterday I read an article in Scientific American on topological quantum computing using "braids" to perform error-resistant qubit processing. It's only theoretical, for it to work one needs a good source of anyons. The Sci Am article was written months ago of course. The same issue included a book review pointing in which a physicist saw no challenges to the Standard Model of physics since there are no meaningful places where both quantum and relativistic effects are simultaneously important.

Hmm. Graphene and anyons. - 49 googlits today. Add topological, get 31 hits. Add braid and ... Google stops working. That's funny!

Update: Google finally returned! There were 3 hits when I added braid, including this conference. By the way, most of the physicists mentioned in the SciAm article on using topological methods (braids) to enable error-resistant quantum computing work for Microsofts Project Q. There are surprisingly few googlits on Project Q, apparently it came up during a site visit for one blogger. It's nice to know Microsoft is putting its monopoly rents to interesting uses.

Tuesday, March 21, 2006

Dana Reeve: never smoked, died of lung cancer

The Blog of death covers Dana Reeves, best known, despite her considerable achievements, as the wife of Christopher Reeves.

She was only 44 when she died of lung cancer.

It is worth noting, I think, that she never smoked. As fewer people smoke, what lung cancer there is falls ever more often upon non-smokers. I need to get up to date on what the risk factors are now thought to be. (Second-hand smoke? Radium exposure? ?)

Life seem absurd? Maybe it is.

One of the explanations for the Fermi Paradox is that God 'made the world for Man'. Only for 'world' substitute galaxy or universe.

This is by far the most commonly held answer to the Fermi Paradox, even though the faithful don't usually think about their beliefs that way. Indeed, it's one of the more interesting arguments for the existence of God. Or rather, of a Designer.

A Designer of the physical universe? Or of a Simulation? And is there a difference? Brin returns to the theme, albeit without mention of my favorite paradox:
Contrary Brin: Design? Accident? Or Simulation?

* Leonard Susskind's new book, The Cosmic Landscape pits intelligent design against string theory and the megaverse. Surprisingly, Autodesk founder John Walker sides with intelligent design, but not by a deity -- by post-Singularity intelligences creating a reality simulation: "What would we expect to see if we inhabited a simulation?" Yes, I have discussed this in fact & fiction, many times. But the “symptoms” delineated by Susskind are definitely the kind plumbed by theoretical physicists who have a more extensive union card than I do! http://www.fourmilab.ch/fourmilog/archives/2006-03/000664.html

To see this scenario played out in one of my short stories, go to: http://www.davidbrin.com/stonesofsignificance1.html
Any fan of the genre knows from the start how Brin's story will turn out, so it's mostly interesting for the digressions along the way. If one were looking for evidence of a simulation, I'd suggest looking for hacks and shortcuts. Computation is never free; any deity running our simulation would be doing something recursive, like reusing an intermediate output as a part of more than one result. One might be able to create an experiment that would stress the system, and expose the hacks. Something using a quantum computer ....

Two occupations: Iraq and the Falklands

Do we Americans understand?
The Falklands: A lesson for America in Iraq - Editorials & Commentary - William Pfaff - International Herald Tribune:

... The third obstacle to the intervention's having a positive political effect in the region is that (for incomprehensible reasons) the model of conduct the administration has imposed on the U.S. Army resembles that of Argentina's military dictatorship rather than that of the British Army that liberated the Falklands.

The Bush administration practice of torture recalls that of the Latin American military dictatorships. So does its flair for totalitarian logic. Few understand why American forces now practice torture, sometimes torture to death, and systematic abuse of prisoners and 'detainees.'

This is conduct for which the Western allies hanged Gestapo and SS officers and Japanese prison camp commanders in 1945. Do not the Bush people, and U.S. Army commanders, know even that much history?

A totalitarian logic also exists, just revealed by the former deputy White House counsel Timothy Flanigan (who has been nominated by the Bush administration to become the United States' deputy attorney general).

Asked by two senior Republican senators, John Warner and John McCain, to describe the standards governing U.S. prisoner treatment, he replied that there are no standards.

The indirect meaning of Flanigan's statement that there are no standards is that nothing is forbidden. This seems a deliberate choice by the Bush administration.

This is why the United States is not a force for justice and order in the Middle East. It has become the opposite, a creator of disorder and injustice. Does the American public understand this?

William Pfaff

William Pfaff used to be one of my favorite writers, along with Gwynne Dyer.

I forget now why he was dropped from my news page. Maybe he was on sabbatical, or behind a paywall. Anyway, you can find his articles in the International Herald Tribune now. They're good reading. I'll put the search link back on my news page.

Canadians are made for suffering: Rogers wireless

I grew up in Montreal, but I've been in the land of the market for many years. Today, in Montreal, I returned to the land where the consumer is supposed to suffer. I used Rogers Wireless' automated phone system for adding minutes to a cellphone.

It was like a brief trip to hell. Their was no option for keypad entry, and it didn't like my diction. I had to speak a 16 digit number in such a way that it got every digit. This is a trivial task for most VR systems, but not for this one. There was no option for keypad entry and no escape from the system.

Astounding.

Even though America is in moral and economic free fall, we can at least take some minor solace from knowing that, in the US market, Rogers Wireless would be toast.

Sunday, March 19, 2006

Rogue Unit, Rogue Nation

It would be interesting to know the date that Bush and the GOP stopped talking about a "single rogue unit" and "a few bad apples":
Before and After Abu Ghraib, a U.S. Unit Abused Detainees - New York Times

... The story of detainee abuse in Iraq is a familiar one. But the following account of Task Force 6-26, based on documents and interviews with more than a dozen people, offers the first detailed description of how the military's most highly trained counterterrorism unit committed serious abuses.

It adds to the picture of harsh interrogation practices at American military prisons in Afghanistan and Guantánamo Bay, Cuba, as well as at secret Central Intelligence Agency detention centers around the world.

The new account reveals the extent to which the unit members mistreated prisoners months before and after the photographs of abuse from Abu Ghraib were made public in April 2004, and it helps belie the original Pentagon assertions that abuse was confined to a small number of rogue reservists at Abu Ghraib.

More like a rogue nation.