Category: Uncategorized

What is a Sudoku? A Sudoku (as explained here in the Wikipedia) is a number/logic puzzle that involves placing the numbers 1 through 9 on a 9-by-9 grid such that no number appears twice on the same row, column, or specially marked 3-by-3 box. Perhaps the real puzzle is why it should have become such a pop sensation in places from Hong Kong to New Zealand to the UK. Here is some coverage of the story from the BBC and Guardian. Nevertheless, a phenomenon it certainly is, and I am not one to shrink from hopping on the bandwagon.

I have been interested in brushing up on my Java skills, and this Sudoku craze has given something good to chew on. With that in mind, I have created Sudoku Satori, the Sudoku solving assistant. Try it out and let me know what you think. It’s in a pretty rudimentary state right now, but it sure works when it comes to solving these puzzles. It’s a simple matter to have the computer solve the puzzle for you. What this tool does is help you see the patterns so you can understand and solve the puzzle (hence the satori part).

I had come across David Rumsey’s historical map collection before, but this article at the
O’Reilly Network provides some nice background on how it came about.

Clay Shirky has posted the full text of his Ontology is Overrated talk. I mentioned this before, but now that the full text is up (including the illustrations from the PowerPoint presentation), it’s worth a read. Here is an example he brings out from the old Dewey Decimal System, which I sure remember from my school libraries growing up.

The one sentence summary of the talk is the title of part two of his talk: “The Only Group That Can Categorize Everything Is Everybody.”

Some blogs just go on and on about stuff that other people create, but occasionally you find a blog, like my friend Nabeel’s, where he doesn’t say too much, but every now and then he actually makes something. As it happens, Nabeel has stitched together a few services (most notably Google Maps) so that he can show you where the information you’re looking for is found. He calls it Geoogle. He starts with Yahoo to find a list of sites that match your search, then uses reverse domain lookup to find the servers address, followed by a web service that resolves addresses into latitude and longitude, which he can finally pour onto a lovely Google map. Got that? Not surprisingly, all the Boston hits are based in Boston. The string “Nabeel”, however, doesn’t return any pointing to the author of the site. His site may become so popular that he claims the top Nabeel spot after a while.

Well done, Nabeel!

Because I am a registered user of Keyhole‘s “Ultimate Interface to the Planet”, also known as Keyhole 2 LT, I was invited to beta test the upcoming release of Google Earth (Keyhole was purchased by Google last October). Damn, is it good! The new Google Earth is pretty much like the old Keyhole application, but it’s a little cleaner, it’s got some Google search and directions capability built into it, and most importantly, it’s got a vastly improved picture database. As a result it’s the most incredible atlas or map reference ever. Ever ever. You can fly around the Grand Canyon, zoom over the Cascades, or hover over your neighbor’s swimming pool. I have lost many hours of useful sleep playing with this insanely addictive program. Here are some ways to blow through the time:

• Visit every place you ever lived.
• Visit every place you ever went on vacation.
• Visit places that you want to go on vacation or are simply curious about (Norwegian fjords, Victoria Falls, Sugarloaf Mountain).
• Follow the paths of explorers like Lewis and Clark.

If you are the least bit of a map-o-phile, please beware: this is strong medicine. Your productivity is at risk. It is also more evidence of how quickly the world is changing. Encyclopedias bound as books are lost causes, but now atlases are equally doomed. Google Earth is far beyond anything else remotely like it. A description of the functionality is simple enough: Fly over the surface of the entire Earth in three dimensions at (almost) any altitude. But the experience defies description until you see it.

In case you were wondering about the name Keyhole, it was the name of a secret US satellite surveillance program. It’s easy to see why the whole enterprise is being re-branded Google Earth. First of all, they had to stick the Google name on it. But as a close second, who wants to be reminded just how much privacy they’ve already lost as peeping Tom satellites lift their latches and finger their blinds? My advice is to look up and smile from time to time, and for God’s sake don’t do anything incriminating out-of-doors.

My brother-in-law sent me this one today: PostSecret. The idea is to send an unsigned postcard with a secret on it. It’s an art project, and the cards the artist has put up so far are impressive little pieces of art in themselves. I have to guess he’s filtering out all the boring postcards on which someone has scrawled “I never flush public toilets.” In fact, the cards are so nice in some cases I start to wonder if the secrets are somewhat manufactured for effect. Still, there are some nice ones that have the ring of truth. I like the one that says

I miss feeling close to God.

… sounds like someone should consider moving back home to that Red State they grew up in. All this is reminiscent of the Apology Project, an installation by artist Allan Bridge that started in 1980 as an answering machine and an ad that encouraged people to call in and apologize for something bad they had done. That project grew and flourished for 15 years before the Bridge died. Here are some sample calls, including this dandy tit-for-tat tale from a Vietnam vet.

We all need to be absolved from time to time. Even so, nobody believes in the old cultural mechanisms that used to carry the load. These days, how many people would trust a priest with their secrets? It’s good to see innovation at work on the guilt frontier.

The MATLAB contest got Slashdotted over the weekend. The Slashdot thread linked to our contest pages but also to my paper hosted here on this site: In Praise of Tweaking: A Wiki-like Programming Contest. So we’ll see how much extra traffic I get to my site as a result.

I have always thought that the contest would be the kind of thing that Slashdot folks would like. Interestingly, the person who posted the thread observes “What makes the contest truly interesting is that the final phase is open source.” I agree with his assessment, of course, but it had the unfortunate side effect of making a lot of Slashdotters noisily point out that MATLAB itself is not open source, which is true enough, but a little beside the point. This observation ends up soaking up a lot of the conversation, but hey, it’s Slashdot. I’ll take what I can get.

Here’s a stranger-than-fiction story about music lost and regained. Actually, it’s more like nonfiction-inspired-by-improbable-fiction. If you saw Blade Runner, you may remember how Deckard zoomed around a digital photograph with his computer until he located a tiny but critical detail with a ridiculous level of magnification. A similar scene occurs in the funny but less memorable High Anxiety by Mel Brooks.

Now for the nonfiction part: someone finally took the time to look closely at a well-known picture and often-published picture of ragtime composer Scott Joplin’s piano. There, in plain view, was an unknown rag. The Rag Time Ephemeralist has the whole story of how the music was recovered. Here is the picture in question, and here is the (fragment of) recovered music. Knowing the story gives the music a haunting air. Lost but not lost, like a musical fossil, it had been floating in information limbo for a century. Give it a listen. As a curious side note, the Ragtime Ephemeralist article was written by the inimitable cartoonist Chris Ware.

Perhaps we are witnessing the birth of the new science of paleo-photography, or photoforensics, or maybe archaeo-archivology, in which lost worlds are recovered from their inadvertent appearance in someone else’s archives. With gigapixel projects like the modern View of Delft, how much of your life is already documented on someone else’s hard drive? Would you pay to see a gallery of distant or departed loved ones if those pictures were taken by security cameras?

Oh boy, have I found a great way to waste your time. If I know you well (and I think I do), you’re going to blow ten minutes easy writing pangram haikus. What’s a pangram? I’ll let font designer Mark Simonson answer that one: “A pangram is a sentence or phrase which contains every letter of the alphabet.” As such it is useful to font mongers plying their wares. Quick foxes, lazy dogs, etc. I’ll give you the link to the Wikipedia page for pangrams here, but you have to promise me you won’t read the combination pangram/palindrome. Some people should really be kept away from word games.

Anyway, font hacks like Simonson make a lot of these pangrams, so he built himself a tool: the Pangrammer Helper. Then, the web being what it is, someone decided to use his tool to make pangram haikus. And now that I’ve told you about it, you have to do it too. Don’t try to stop yourself; it won’t do you any good. And when you’re done, send me a copy. Here are mine.

I started with some dreary ninth grade pseudo-Eastern stuff.

a box of olives
a jumpy vendor coughing
wizened kumquats rot

After a while I warmed up…

Jazz up your pangrams;
show some alphabetic love.
“Quick red fox” my ass.

and finally

Need a quick web fix?
Try this dazzling site, by Jove!
Pangram haikus rock.

Your turn. How about a pangram/palindrome/haiku?