Oct 062012
 

Wow. If these plots are to be believed, Voyager 1 may have reached the heliopause at last:

This is, well, not exactly unexpected but still breathtaking.

The discovery of the heliopause was one of the “holy grail” science objectives of the extended “interstellar” mission of the twin Voyager spacecraft. If confirmed, it means that Voyager 1 is the first man-made object to have entered the interstellar medium, traveling through a region in the outer solar system that is no longer dominated by charged particles from the solar wind. (Gravitationally, this is still very much our Sun’s domain; there are comets out there with elliptical orbits that extend to many thousands of astronomical units.)

Not bad for a spacecraft that was launched over 35 years ago and flew by Saturn just a few months into the presidency of Ronald Reagan. Its twin finished its flyby of Neptune when the Berlin Wall was still standing. And they are both still alive and well. Voyager 1 is more than 120 astronomical units from the Sun these days. It takes about 17 hours for its radio signal to reach the Earth. If all goes well, it has sufficient electrical power to operate its on-board instruments for another decade or so.

 Posted by at 12:40 pm
Oct 042012
 

55 years ago today, the Space Age began when the Soviet Union launched “Elementary Satellite 1”, better known as Простейший Спутник-1; or, in Latin transliteration, as (Prosteishii) Sputnik-1.

Inadvertently perhaps, but Sputnik-1 also launched what is nowadays called “radio science”: observations that utilize a spacecraft’s radio signal to determine the spacecraft’s position (and thus, the forces that act on the spacecraft) and the properties of the medium through which the signal travels. In the case of Sputnik-1, this meant deducing the density of the upper atmosphere (from the drag force acting on the satellite) and the electromagnetic properties of the ionosphere.

Sputnik-1 spent a total of about three months in orbit (22 days operational) before it fell back to the Earth. By then, the Space Race was running full steam ahead, culminating in the manned Apollo Moon landings in 1969… an accomplishment that, today, seems to be more in the realm of fiction than back in 1957.

 Posted by at 2:25 pm
Oct 022012
 

A few days ago, I was reading a Hungarian language blog about how over the decades the streetcar systems of Budapest and other Hungarian cities were decimated or outright eliminated. While many blamed the communist regime for this, unfortunately there was a worldwide trend back then to get rid of “obsolete” surface light rail and replace them with “modern” motorways.

Take the case of our fine capital city. Ottawa is about to embark on its costliest public works project yet, a more than two billion (!) dollar project to build a light rail network. The sad thing is that Ottawa once had a respectable surface light rail system. After searching a bit online, I was able to find a system map from 1948. How lucky we would be if this system were still in existence.

 Posted by at 5:06 pm
Oct 022012
 

For the past several minutes, I have been staring at a Smithsonian Institution photograph, showing a younger version of Grace Hopper at a UNIVAC console, presumably working on an early version of the COBOL compiler.

No, it’s not Grace Hopper that I was staring at, nor the vintage equipment, not even the prominent ashtraysmagnetic tape protection rings. It was the three gentlemen surrounding Admiral Hopper (okay, she wasn’t an admiral yet back then): remarkably, one of them is African-American while another is apparently of Asian descent. Such a picture would not be particularly unusual today, but more than 50 years ago? It’s astonishing. Pity the photo credits do not tell us who these gentlemen were whose talent and perseverance allowed them to overcome racist prejudice. Just as Grace Hopper herself overcame sexist prejudice and went on to become the oldest commissioned officer in the US Navy at the time of her final retirement, a few months shy of her 80th birthday.

 Posted by at 10:58 am
Sep 252012
 

How do you operate a streetcar line that is not electrified? Why, you can always have the streetcar pull its own generator.

This is how the streetcar line in Whitehorse seems to operate. Something I stumbled across as I was reading about the sad history of Ottawa’s long defunct streetcar service.

Curiously, the color scheme of this former Lisbon streetcar happens to be nearly identical to the traditional color scheme used for streetcars in the city of my birth, Budapest. Another city with a streetcar network that, while not completely destroyed, has been much diminished over the years by misguided urban planners.

 Posted by at 5:46 pm
Aug 082012
 

I am reading with astonishment an article in IEEE Spectrum on the origins of DOS. The author, a self-proclaimed expert on software intellectual property analysis, describes his attempt at a forensic comparison of early versions of MS-DOS and CP/M, to prove or disprove once and for all the allegation that MS-DOS was a result of theft.

But I find the article poorly researched, and also a thinly veiled attempt to plug the author’s company and analysis tools. Childish comparisons of identifier names and code fragments… really? The issue was never verbatim copying but the extent to which QDOS (which is the operating system Microsoft purchased and renamed) was derived from CP/M. It is clear that it was heavily influenced by CP/M, just as CP/M was heavily influenced by its predecessors, including operating systems written for the PDP-11. Does this constitute infringement? I certainly do not believe so. Indeed, something very similar (albeit more formal) occurred a little later, when the first IBM-compatible “clones” hit the market, and companies like American Megatrends, Award and Phoenix created binary-compatible versions of the IBM PC BIOS using “clean room” reverse engineering.

Some online commenters went so far as to ascribe ulterior motives to the author and question his sincerity. I think that is uncalled for. However, I do believe that this article should not have been published in its present form. At the very least, the author should have been advised by competent editors to tone down the plugs; to do a little bit more research on the topic; and to shift the emphasis from meaningless code comparisons to an analysis of the functional similarities between the two operating systems, the possible origin of these similarities, and the question of whether or not they might constitute infringement (and the extent to which the law may have changed, if at all, in this regard between 1982 and 2012).

 Posted by at 5:40 pm
Aug 062012
 

Lest we forget: the attack on Hiroshima occurred 67 years ago today. Little Boy was one of the few uranium bombs ever made (using plutonium that is produced in a nuclear reactor is a much cheaper alternative.)

I remain hopeful. Yes, it was exactly 67 years ago today an atomic bomb was first used in anger against human beings. But in three days, we will celebrate (if that is the right word) the 67th anniversary of the last use of an atomic bomb in anger against human beings.

[PS: One of these days, I’ll learn basic arithmetic. 2012 − 1945 = 67. Not 77.]

 Posted by at 6:20 pm
Jul 242012
 

Today would be the 115th birthday of Amelia Earhart, the pioneer female aviator. Google is celebrating with a Google Doodle, showing Ms. Earhart climbing onto a what appears to be a Lockheed Vega 5B (which is not the same as the famed two-engine Electra 10E in which she disappeared.)

Ms. Earhart disappeared over the Pacific Ocean on July 2, 1937, during an attempt to circumnavigate the globe. The exact circumstances remain a mystery. At the request of her husband, she was declared legally dead on January 5, 1939, by a California court.

The reason why I looked up her official date of death was that I came across “the official Website” of Ms. Earhart. I put this in quotes because I found it odd that a person who disappeared 75 years ago can have an “official Website”, but then, what do I know? So I went and looked to see what the site was. While the site’s stated purpose is “to honor the life, the legend and the career of Amelia Earhart”, it is fairly evident that the real goal is to market the Earhart brand. Indeed, in the Site Purpose section, they warn would be users with stern language: “Any use of the name, image or likeness of Amelia Earhart , without the express written consent of the estate is strictly prohibited.”

Now I know precious little about personality rights in the United States, but I found this warning curious. Be it far from me to pick a fight with lawyers, but exactly who are these people doing the prohibiting, and on what grounds?

The site is marked “© Family of Amelia Earhart”, but the FAQ states that any e-mail sent through this site “goes to the webmaster of CMG Worldwide, the company that represents the name/image/likeness of Amelia Earhart”. So this is a full-fledged marketing operation. Nothing wrong with that (in fact, I appreciate their candor) but that still leaves my question unanswered: exactly what rights do they have to Ms. Earhart’s name?

Well, if Wikipedia can be believed: none. Had Ms. Earhart been domiciled in Indiana at the time of her death, her estate would hold the rights for another 27 years or so. But in California, the personality rights for a celebrity expire after 70 years. So to the best of my knowledge, Ms. Earhart’s likeness and indeed, anything related to her personality, are now in the public domain. (Not necessarily photographs. The copyright status of those may depend on when the photographer died.)

But then it occurred to me to check Ms. Earhart’s site using archive.org’s Wayback Machine. Unsurprisingly, the site has been in existence for many years. Although its visual style changed, much of the text remains the same, including text in the Site Purpose section. And back in 2003 (the date of the earliest version archived by the Wayback Machine) Ms. Earhart’s personality rights would still have been protected under California law.

Meanwhile, Ms. Earhart’s disappearance must remain a mystery for now. The latest expedition to locate her aircraft was called off as it ran into unexpected difficulties.

 Posted by at 9:01 am
Jul 232012
 

Good-bye, Sally Ride. America’s first female astronaut died today, at age 61, after a battle with cancer. When she flew on board Challenger in 1983, Ride was also NASA’s youngest astronaut to have made it to space.

Ride is also known as the only person who publicly supported Roger Boisjoly, the Morton-Thiokol engineer who tried to warn NASA that Challenger was in mortal danger, only to be overruled by his bosses. Boisjoly himself died earlier this year, at age 73.

The world’s first female astronaut, or rather, cosmonaut, is still alive: Valentina Tereshkova is 75 this year, seemingly in good health (judging by her appearance in recent press photographs). May she enjoy many more happy years!

 Posted by at 6:08 pm
Jul 202012
 

43 years ago today, the lunar module (nicknamed Eagle) of Apollo 11 touched down in the Sea of Tranquility, fulfilling a centuries-old dream of humanity.

Too bad that the 40th anniversary of the last Moon landing is rapidly approaching. That, if you ask me, is four wasted decades of manned space exploration.

Incidentally, the book The Eagle Has Landed, by Jack Higgins, was the first English-language book I ever read, sometime in the late 1970s. It was given to me by my aunt (the one who, sadly, is no longer with us) when I complained to her that I was having a hard time improving my English. That particular book, along with several others, was lost when the post office lost a parcel from my Mom. Thanks to Amazon, I managed to replace them all, with one exception: an English-language collection of 11 science-fiction stories that was published in Soviet-era Moscow.

Reading books is a good way to learn a language. My French leaves a lot to be desired (being able to utter a meaningful sentence would be nice) but what little I know I was able to improve by trying to read Jules Verne’s De la Terre à la Lune in French. I first read that book (in Hungarian, of course) at the age of six, in 1969… just as Neil Armstrong and Buzz Aldrin landed on the Moon.

 Posted by at 12:45 pm
Jul 202012
 

I just came across a photograph of a building that looks like one of the abandoned edifices in the ghost city of Prypiat, right next to the Chernobyl nuclear power station. Indeed, the picture appeared in a Facebook blog that features many pictures from Prypiat… but this wasn’t one of them.

Instead, the picture was taken in Hungary, on the south shore of Lake Balaton. The building is an abandoned hotel that before the collapse of Communism served as a resort, owned by the Hungarian Industrial Association. I spent nights at that resort. In particular, I spent nights in this very building shown in the picture.

What I found most striking is that the building looks exactly the same as it did 30-odd years ago (except for the decay, of course). It was apparently never modernized. Never really renovated. Presumably, it was privatized some time after 1989, served as a hotel for a while, and then it was abandoned… but it still looks exactly the same (insofar as I can remember) as it did back in the late 1970s.

I guess I now have a better appreciation of how residents of Prypiat feel when they come across present-day photographs of their once proud town. It is an eerie feeling.

 Posted by at 10:42 am
Jul 162012
 

I just listened to an interesting story on NPR: how the Red Cross lost (and never regained!) the trust of American soldiers 70 years ago. It’s a cautionary tale about charging for things that were once free, and how that can irreversibly change perceptions.

The Red Cross made a mistake in 1942 when it obeyed a request from America’s then secretary of war and started charging GIs overseas, to eliminate tension that arose because British soldiers had to pay for similar services. Just how bad are the consequences? Seventy years later, when NPR’s reporter told a veteran that the Red Cross still offers donuts for free, the response was predictably skeptical: “stale donuts probably, too”.

 Posted by at 5:41 pm
Jul 112012
 

The other day, I came across a picture of Kosmonaut Yuri Gagarin, a floating deep space tracking station operated by the Soviet space establishment in the 1970s. The picture was actually posted to Facebook by The Planetary Society. The source of the photograph is a book, Soviet Robots in the Solar System, published by Springer in 2011.

I felt compelled to buy this book. The Soviet space program always fascinated me. I grew up in the 1960s and 1970s behind the Iron Curtain; yes, we heard about Apollo, but we heard just as much about Soyuz, Vostok, Lunokhod, Venera, not to mention the innumerable spacecraft named Cosmos, followed by a three-digit (later, four-digit) number, whose missions remained shrouded in secrecy.

Of course we now know that many of those Cosmos craft were, in fact, failed missions, including failed missions to Mars and Venus. The Soviets tended to hide their failures and announce missions only when (at least partial) success was already assured.

But it’s not like they were unsuccessful. Sure, they never managed to land a man on the Moon (or even take a human beyond Low Earth Orbit); their attempt to build a launch vehicle comparable to America’s Saturn V, the N-1, failed miserably. But they did land not one but two teleoperated rovers on the Moon decades before the American Sojourner mini-rover arrived on Mars. They experimented with autonomous deep space navigation. They could also claim the first successful soft landing on the surface of Mars (although Mars-3 only remained operational for a few seconds after the landing).

And then there is their most spectacular success story: the Venera series of probes to Venus. Their persistence (and their willingness to tolerate early failures) paid off: Venera 7 successfully reached the Venusian surface, Venera 9 transmitted the first black-and-white images from the planet, followed by the spectacular color panorama captured by Venera 13 and 14.

The tragedy is what happened to this space program afterwards. The US unmanned space program carried on, budget cuts and failures notwithstanding; Voyagers 1 and 2 are still transmitting from the edge of the solar system, a rover has been operating on Mars for the past eight years with another on its way, a probe is en route to Pluto, others are in orbit around Mercury and Saturn. Meanwhile, by the late 1980s, the Soviet unmanned program became a shadow of its former self, only to disappear pretty much completely with the collapse of the Soviet Union and the subsequent failure of Mars-96. More recently, there was hope that the program would be revived with Phobos-Grunt (a hope echoed in the aforementioned 2011 book); alas, that was not to be, as Phobos-Grunt also failed to leave Earth orbit and eventually crashed back onto the Earth (no doubt in the old days, it would have earned another Cosmos designation).

Anyhow, the book by Huntress and Marov arrived in my mailbox today, and apart from what seems to be a higher-than-usual number of trivial typos (one example: “back-and-white”; publishers really had gotten lazy ever since authors started delivering manuscripts electronically) it is a quality book indeed, providing a reasonably complete account of these Soviet efforts. As I am flipping through its pages, I am reminded of those newspaper and magazine articles or the occasional television report (in glorious black-and-white, of course) that captivated me so much as a child.

 Posted by at 10:07 pm
Jul 092012
 

I didn’t realize that the first ever photograph of the Earth taken from space predates Sputnik by more than a decade.

This amazing picture is one of several frames shot by a camera on board a captured V-2 rocket, launched from the White Sands Missile Range on October 24, 1946. Almost 66 years ago.

Amazing.

 Posted by at 11:04 pm
Jun 282012
 

Alas, Minitel is no more. After 30 years of operation, France Telecom will shut down the venerable service this Saturday. While the proprietary, closed architecture of Minitel never caught on outside of France, this “made in France” solution reached nearly half the inhabitants of France in its heyday. Today, Minitel is largely irrelevant thanks to the Internet (this is what doomed other closed architecture commercial online services, such as CompuServe.) Still, if The New York Times is to be believed, at least some farmers are going to miss this reliable service.

 Posted by at 2:48 pm
Jun 282012
 

The first American president who made a serious effort to introduce universal health care was Teddy Roosevelt, almost exactly 100 years ago. Teddy Roosevelt is of course also famous for the eponymous bear.

And now we have ObamaCare, upheld by the United States Supreme Court in a surprise decision, with conservative justice Roberts being the “swing vote”.

You put bear and care together and what you you have? A care bear, of course. Maybe supporters of ObamaCare will celebrate by sending plush care bear toys to the White House…

 Posted by at 1:02 pm
Jun 202012
 

I am reading a note written by a certain Alan C. Kay at the Xerox Palo Alto Research Center.

Kay describes a “personal computer for children of all ages”. This interesting and very detailed description includes, for instance, words like: “Once one has gotten used to the idea of no moving parts, he is ready for the idea of no keyboard at all! Suppose the display panel covers the full extent of the notebook surface. Any keyboard arrangement one might wish can then be displayed anywhere on the surface. […] This arrangement allows the font in which one is typing to be shown on the keys, special characters can be windowed, and user identifiers can be selected with one touch.”

The reason why I consider these words so remarkable is the publication date. Kay’s note was published in the Proceedings of the ACM National Conference, Boston… in August 1972.

 Posted by at 7:09 pm
Jun 182012
 

Elie Wiesel is a well known Holocaust survivor and Nobel laureate.

Wiesel was also a recipient of the Grand Cross Order of Merit of the Republic of Hungary.

Not anymore. He decided to repudiate the order. This is his means to protest the participation of László Kövér, Speaker of the Hungarian National Assembly, in a ceremony in Romania honoring the author József Nyirő, a member of Hungary’s national socialist Arrow Cross parliament in 1944-45.

Elie Wiesel had enough and I can’t blame him.

 Posted by at 1:52 pm
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 152012
 

I am really disappointed to learn this morning that the world will not come to an end December this year. According to a new discovery, the Mayan calendar may have had at least 17 baktuns, not 13 as previously believed, so we are good for something like another two millennia.

Just as I was getting ready to sell my house and all my earthly possessions…

 Posted by at 8:11 am