Jun 032012
 

As part of the Queen’s diamond jubilee celebrations, the British did something that hasn’t been done in 350 years: a 1000-boat pageant on the river Thames.

Being the loyalist royalist, I was watching (parts of) it on television. As I did so, I couldn’t help noticing just how soaking wet the choir was on top of the boat carrying the London Philharmonic.

Their spirit was undaunted, though, and they sang beautifully and professionally. I hope none of them caught pneumonia.

 Posted by at 2:00 pm
May 292012
 

A few days ago, a bright 16-year old German student of Indian descent, Shouryya Ray of Dresden, won second prize in a national science competition with an essay entitled “Analytische Lösung von zwei ungelösten fundamentalen Partikeldynamikproblemen” (Analytic solution of two unsolved fundamental particle dynamics problems).

This story should have ended there. And perhaps it would have, were it not for the words in the abstract that said, among other things: “Das zugrundeliegende Kraftgesetz wurde bereits von Newton (17. Jhd.) entdeckt. […] Diese Arbeit setzt sich also die analytische Lösung dieser bisher nur näherungsweise oder numerisch gelösten Probleme zum Ziele.” (The underlying power law was discovered by Newton (17th century). The goal of this work is then the analytic solution of these until now only approximately or numerically solved problems.)

This was more than enough for sensation-seeking science journalists. The story was picked up first by Die Welt with the title “Mit 16 ein Genie: Shouryya Ray löste ein jahrhundertealtes mathematisches Problem” (Genius at 16: Shouryya Ray solves centuries-old mathametical problem) and then translated into English and other languages, even appearing in the Ottawa Citizen. In short order, even a biographical entry on Wikipedia was created; now nominated for deletion, many are voting to keep it because in their view, the press coverage is sufficient to establish encyclopedic notability.

Cooler heads should have prevailed. What science journalists neglected to ask is why, if this is such a breakthrough, the youth only received second prize. And in any case, what on Earth did he actually do? His essay or details about it were not published. The only clue to go by was a press photo in which the student holds up a large sheet of paper containing an equation:

As I discussed this very topic on a page I placed on my Web site a few years back (reacting to some bad math and flawed physics reasoning in an episode of the Mythbusters) I felt compelled to find out more. I guessed (correctly, as it turns out) that \(u\) and \(v\) must be the horizontal and vertical (or vertical and horizontal?) components of the projectile’s velocity, \(g\) is the gravitational constant, and \(\alpha\) is the coefficient of air resistance. However, I am embarrassed to admit that although I spent some time trying, I was not able to find a way to separate the variables and integrate the relevant differential equations to obtain Ray’s formula. I was ready to give up actually when I came across a derivation on reddit (and I realized that I was on the right track all along, I was just stubbornly trying to do a slightly different trick, which didn’t work). The formula is correct, and it is certainly an impressive result for a 16-year old, worthy of a second prize.

But no more. This is not a breakthrough. As it turns out, similar implicit solutions were well known in the 19th century. A formulation that differs from Ray’s only in notational details appeared in a paper by Parker (Am. J. Phys, 45, 7, 606, July 1977). Alas, such an implicit form is of limited utility; one still requires numerical methods to actually solve the equation.

Much of this was probably known to the judges of the competition, which is probably why they awarded the student second prize.

Hopefully none of this will deter young Mr. Ray from pursuing a successful career as a physicist or mathematician.

 Posted by at 10:20 am
May 222012
 

The Dragon capsule of SpaceX Corporation is on its way after a successful launch towards the International Space Station. If all goes well, it will dock with the ISS in two days’ time, making it the first commercial spacecraft to do so, and paving the way to eventual human flight to the ISS on board commercial vehicles. This really is the beginning of a new era.

And the end of an old one. The ashes of James Doohan, better known as Scotty to Star Trek fans, are reportedly on board the Dragon capsule, to fulfil the actor’s final wishes.

 Posted by at 11:39 am
May 152012
 

“This is it. The Big Bang Theory television show lost all its credibility for me. I could put up with the laugh track (though I cannot understand why they need a laugh track for a realistic drama series) but not with this utter contempt towards elementary logic. Here is what happened: in one episode (S1E15), Dr. Sheldon Cooper tells us that Missy is his fraternal twin sister. But then, in another episode (S3E17), Dr. Cooper purportedly says, “I have a twin sister whose assaults began in utero. If only I’d had the presence of mind to reabsorb her then I’d have a mole with hair on it”. But a real-life Dr. Sheldon Cooper would never make such a mistake: he would know very well that one can only reabsorb an identical twin. This blatant disregard for logic is an insult to the viewers’ intelligence. I am sorry, but this show is unwatchable. Change the channel, please.”

The preceding rant is best delivered, of course, in the voice of Dr. Sheldon Cooper. Fortunately, I am not Sheldon Cooper, and I will still enjoy TBBT when it returns for its next season in the fall. Nor do I have any plans of joining the ranks of nitpickers who demonstrate their presumed intellectual superiority by spending hours watching and re-watching television shows and movies just to find the odd goof. I swear I only noticed this one by accident!

 Posted by at 8:25 am
Apr 302012
 

I am reading about plans to introduce commercials on CBC Radio 2. Looks like a done deal unless the CRTC disagrees, which I think is unlikely.

What has been done to CBC Radio in the past 25 years is just unconscionable. They are turning a once world-class national broadcaster into a run-of-the-mill radio network that is more and more indistinguishable from its commercial counterparts.

Meanwhile, here in Ottawa, the capital of Canada, for much of the day there are no radio stations broadcasting anything that could be described as “high culture”. None. No classical music, no jazz, no arts programs, no literary programs, just commercial music, talk radio and the like.

Oh well. Thanks to the Internet, we can always listen to the BBC. Or ABC from Australia. Or Bartok Radio from Budapest. Or other national broadcasters from countries much smaller and much poorer than Canada who nevertheless believe that investing in high culture is not worthless elitism but an investment in the future.

 Posted by at 10:43 pm
Apr 162012
 

Last night, I was watching a documentary about the 1943 Nazi film Titanic, an attempt by Göbbels to twist the tragic story of the sinking for German propaganda purposes (Briefly: Titanic sank because of the greed and hubris of British capitalists and despite the heroic efforts of a German first officer.)

The story behind the movie is fascinating (director was arrested by the Gestapo and hanged himself, film was banned by Göbbels and only shown in occupied territories, never in Nazi Germany), but then they screw it all up with a complete fabrication. The ship that was used for the filming, the luxury ocean liner SS Cap Arcona, was herself sunk in May 1945 with about 5,000 concentration camp prisoners on board. The sinking happened in part because of a shake-up of responsibilities between Bomber Command and Fighter Command in the RAF, in the wake of the firebombing of Dresden. But according to the film I just saw, the sinking was deliberately planned by the Nazis who filled the ship with flammable fuel and intentionally put it out for the RAF to bomb. This is just a boldfaced lie (it’s not like the Germans had any fuel reserves left in April 1945, and they certainly didn’t need to resort to such an elaborate plot to end the lives of a mere 5,000 people; besides, several ships were hit that day, including an unmarked German hospital ship) and I keep wondering why, nearly 70 years after the end of World War 2, we are still being subjected to wartime propaganda.

Incidentally, the Web page I linked to above states that the sinking of the Cap Arcona was the world’s greatest ship disaster. Not so. That sad distinction belongs to the MV Wilhelm Gustloff, another German ship that was torpedoed by the Soviets in January 1945 while carrying over 10,000 evacuees, mostly civilians. More than 9,000 people died.

And while I was debating with myself whether or not to turn this into a blog post, I was listening to the noon newscast on CTV Ottawa. In the context of a sexual attack this morning on Metcalfe street, the reporter told us that “in a single day, nearly 5,300 cases of sexual assault are reported in Canada”. What? That is a humongous number. It is also wrong. What actually happened in a single day (April 19, 2006) was that nearly 5,300 victims of sexual assault and other violent offences requested assistance from victim service agencies across Canada. The number of “incidents involving sexual offences” was 27,094 in 2002; that translates into about 75 sexual assaults in a single day. Not 5,300.

To paraphrase Mark Twain, there are lies; there is history; and then there are statistics.

But perhaps “damn lies” is just a synonym for history?

 

 Posted by at 12:33 pm
Apr 152012
 

At the very end of tonight’s episode of The Simpsons, just before the end credits, we caught a brief glimpse of Pioneer 10 (or was it 11?), along with an extraterrestrial intently studying Carl Sagan’s famous golden plaque.

But wait a minute… stupid alien is holding the plaque upside-down. No wonder he can’t make sense of it.

And they didn’t get the shape of the RTG fins right. Can’t really blame them; way too many artistic depictions of Pioneer show the generators with the small, rectangular fins that, I believe, were on (non-nuclear) engineering mockups used during testing.

 Posted by at 8:55 pm
Apr 102012
 

I was reading about a place called Göbekli Tepe today.

This is a place in southeastern Turkey. It is the site of an archeological excavation; they are exploring the ruins of an old temple.

The ruins of a really old temple. Really, really, really old.

How old? Well… when the first Egyptian pyramid was still on the drawing board, Göbekli Tepe was already some 6,000 years of age. Indeed, when Göbekli Tepe was built, the place where I now live, Ottawa, was still covered by the Champlain Sea. The oldest ruins at Göbekli Tepe are 11,500 years old, take or leave a few centuries.

That is an astonishing age for a major stone structure like this. Wikipedia tells me that it was built by hunter-gatherers, but I have a hard time accepting that hypothesis: Stone construction on this scale requires highly specialized skills not to mention the organization of the necessary labor force. Maybe I lack imagination but I just can’t see how hunter-gatherer tribes, even if they have permanent village settlements, would be able to accomplish something on this scale.

But if it wasn’t hunter-gatherers, who were they? What kind of civilization existed in that part of the world 11,500 years ago that we know nothing about?

 Posted by at 8:15 pm
Apr 082012
 

I have no delusions about my abilities as a graphic artist, but hey, it’s from the heart. Happy Easter, everyone!

As to why we choose to celebrate the gruesome death on the cross and subsequent resurrection of a young man some 2,000 years ago, one whose sole crime was that he was preaching love and understanding among neighbors, with bunny rabbits laying gaudy-colored eggs and such nonsense, I have no idea. But then, I am just the clueless atheist here, so what do I know?

I only wish more people actually listened to that young man’s message, instead of choosing hatred and violence. The world would indeed be a better place.

 Posted by at 9:37 am
Mar 202012
 

I am holding in my hands an amazing book. It is a big and heavy tome, coffee table book sized, with over 600 lavishly illustrated pages. And it took more than 30 years for this book to appear finally in English, but the wait, I think, was well worth it.

The name of Charles Simonyi, Microsoft billionaire and space tourist, is fairly well known. What is perhaps less well-known in the English speaking world is that his father, Karoly Simonyi, was a highly respected professor of physics at the Technical University of Budapest… that is, until he was deprived of his livelihood by a communist regime that considered him ideologically unfit for a teaching position.

Undeterred, Simonyi then spent the next several years completing his magnum opus, A Cultural History of Physics, which was eventually published in 1978.

Simonyi was both a scientist and a humanist. In his remarkable, unique book, history and science march hand in hand from humble beginnings in Egypt, through the golden era of the classical world, through the not so dark Dark Ages, on to the scientific revolution that began in the 1600s and culminated in the discoveries of Lagrangian mechanics, thermodynamics, statistical physics, electromagnetism and, ultimately, relativity theory and quantum physics.

And when I say lavishly illustrated, I mean it. Illustrations that include diagrams, portraits, facsimile pages from original publications decorate nearly every single page of Simonyi’s tome. Yet it is fundamentally a book about physics: the wonderfully written narrative is well complemented by equations that translate ideas into the precise language of mathematics.

I once read this book, my wife’s well worn copy, from cover to cover, back in the mid 1990s. I feel that it played a very significant role in helping me turn back towards physics.

Simonyi’s book has seen several editions in the original Hungarian, and it was also translated into German, but until now, no English-language translation was available. This is perhaps not surprising: it must be a very expensive book to produce, and despite its quality, the large number of equations must surely be a deterrent to many a prospective buyer. But now, CRC Press finally managed to make an English-language version available.

(Oh yes, CRC Press. I hated them for so many years, after they sued Wolfram and had Mathworld taken off-line. I still think that was a disgusting thing for them to do. I hope they spent enough on lawyers and lost enough sales due to disgusted customers to turn their legal victory a Pyrrhic one. But that was more than a decade ago. Let bygones be bygones… besides, I really don’t like Wolfram these days that much anyway, software activation and all.)

Charles Simonyi played a major role in making this edition happen. I guess he may also have spent some of his own money. And while I am sure he can afford a loss, I hope the book does well… it deserves to be successful.

For some reason, the book was harder to obtain in Canada than usual. It is not available on amazon.ca; indeed, I pre-ordered the book last fall, but a few weeks ago, Amazon notified me that they are unable to deliver this item. Fortunately, CRC Press delivers in Canada, and the shipping is free, just like with Amazon. The book seems to be available and in stock on the US amazon.com Web site.

And it’s not a pricey one: at less than 60 dollars, it is quite cheap, actually. I think it’s well worth every penny. My only disappointment is that my copy was printed in India. I guess that’s one way to shave a few bucks off the production cost, but I would have paid more happily for a copy printed in the US or Canada.

 Posted by at 4:38 pm
Mar 172012
 

I have been exchanging e-mails with a friend. We discussed, among other things, Rush Limbaugh’s now infamous comments on Sandra Fluke.

In response to comparisons of Limbaugh to some of the vile comments made by left-wing personalities like Bill Maher in the past (who called, for instance, Sarah Palin a ‘cunt’), I said this:

“I also note that Limbaugh’s rant went way beyond the use of an offensive word: he discussed Susan [sic!] Fluke’s sexual habits repeatedly and in detail, and once he was done demonstrating his complete ignorance on the topic of birth-control drugs (no, the amount of birth control pills consumed is not related to the amount of sex a person has, he must have confused it with the pills he takes for sex; and no, Fluke was not discussing recreational use of birth control pills but specifically their widespread use to treat serious gynecological conditions) he actually asked her publicly to make a porn video of her sexual activities. And, unlike the liberal comedians mentioned (who are, after all, comedians) Limbaugh did this in all seriousness. If I had been in Fluke’s place, I’d have called Limbaugh a lecherous, drug-addled dirty old pig. Fluke was more of a lady than I am a gentleman, I guess.”

And then I realized that I should not be ashamed of my words. Instead of saying what I should do in Fluke’s place, let me just do it, plain and simple:

In my opinion, Limbaugh is a lecherous, drug-addled dirty old pig.

 Posted by at 11:00 am
Mar 112012
 

I have been meaning to write about this since last month, when news photographer Damir Sagolj won a World Press award for his photograph of a North Korean building complex with the well lit picture of Kim Il-Sung highlighting a wall:

I think it’s an amazing shot. All those drab buildings with their dark windows, and the single source of light is the portrait of the Great Leader represent North Korean society in a way words cannot. I can almost visualize this image as part of some post-apocalyptic computer game.

 Posted by at 11:09 pm
Mar 012012
 

Someone sent me this link (https://www.ted.com/talks/eli_pariser_beware_online_filter_bubbles.html).

It’s a talk about the growing prevalence of Internet content providers to present content that they presume you want to see. You go to Google News and the news you find is the kind of news Google thinks you like. You go to Facebook and the comments you see are the kind of comments Facebook believe you like. Comments from friends you were less likely to click on slowly vanish from sight… and you end up in a bubble of like-minded people, increasingly unaware of things that might challenge your thinking.

This is very bad. Indeed, I am beginning to wonder if perhaps the emergence of such information bubbles may be somewhat responsible for the increasing polarization in politics in many Western societies.

 Posted by at 11:36 am
Feb 272012
 

This is something I griped about before. Moments ago, I saw the following picture on the CBC Newsworld analog cable channel:

Yes, it does look like a ridiculous amount of blackness surrounding a small-ish picture. It turns out that I was looking at…

  • a standard-definition (4:3) broadcast signal on a 16:10 widescreen monitor, containing…
  • widescreen (16:9) original material letterboxed into the standard-definition (4:3) frame, containing in turn…
  • standard definition (4:3) material letterboxed into a wide-screen (16:9) frame, that in turn contained…
  • widescreen (16:9) original material.

Confusing? Well, perhaps this picture clarifies it a little bit:

  • The yellow bars at the top and bottom were added when the original 16:9 material was letterboxed into a 4:3 standard-definition frame;
  • The blue bars on the sides were added when this 4:3 material was letterboxed into a 16:9 broadcast frame;
  • The green bars were added when the widescreen 16:9 broadcast was reformatted for the standard-definition 4:3 analog standard;
  • The red bars are the unused area on my 16:10 monitor when I was watching this signal full screen.

Still complicated? Let me make it simpler, then. After years of trying (and failing) to sell us high-definition televisions, manufacturers realized that casual viewers can’t readily tell the difference between resolutions; they can, however, tell the difference if the shape is different. So they opted to develop a widescreen high definition format. (Back in the 1950s, a similar reasoning led the movie industry to change to a widescreen format. It was not for technical or artistic purposes; it was pure marketing.)

The end result? In this example, approximately 65% of my beautiful high-resolution display is unused, with a postage-stamp like picture occupying the center 35%.

Welcome to the 21st century.

 Posted by at 3:37 pm
Feb 262012
 

Christopher Plummer is one of my favorite actors. I don’t usually care about the Oscars, but tonight, I was really rooting for him. And at last, it came true: at 82, he became the oldest recipient of a well-deserved Academy Award.

 Posted by at 11:42 pm
Feb 242012
 

Looks like I am into signing petitions this week. I don’t like it, but I take it as a sign of the times that we live in.

Today, it’s the CBC’s turn; specifically, the unbelievable news that the CBC may begin dismantling its physical music archives next month.

I added the following comment when I signed the online petition: “Decades from now, the decision to discard these archives will be viewed as a grave, irreversible act of cultural vandalism. It is inconceivable that the leadership of the CBC is considering this. Then again, looking at what they’ve done to CBC Radio 2 and the Radio Orchestra, perhaps nothing should surprise me anymore…”

 Posted by at 2:15 pm
Feb 202012
 

I just finished doing our taxes. It’s not very complicated (I keep good books) but it still took a few hours. I feel drained… and not just in the wallet. Groan.

Speaking of Groans, I am re-reading the story about the 77th Earl of Groan, Mervyn Peake’s incredible trilogy about the mysterious castle of Gormenghast and its inhabitants. I became aware of this book some 10-odd years ago when the Canadian cable network Space showed the eponymous BBC miniseries; I had no idea what I was watching, but I got hooked by its atmosphere. Later, I bought the book and read it, and what a read it is! Now I decided to read it again, taking my time this time, enjoying every sentence, every turn of phrase. After spending hours with tax software, retiring to my bed with Gormenghast will be quite the relief.

The tax software I use is GenuTax. It is decent, perhaps not the best, but it has an advantage other tax packages lack: it does not require Activation nor does it incorporate other Draconian DRM technology. This is why I switched to this software many years ago. I am disgusted by software companies that treat us all like would-be criminals. Unfortunately, GenuTax is not doing well; their business model is a losing one (lifetime free upgrades) and I worry that they won’t be around much longer, which will be a pity.

 Posted by at 10:48 pm