Comments are back, hello Captcha’s!

January 10th, 2006

After being motivated by a workmate (who when confronted by comment spam, hacked together a quick maths-based Captcha in an evening), I decided to install a Captcha plugin and re-enable comments.

(For the uninitiated, a Captcha is a “thing” that attempts to distinguish humans from computers – particularly handy for preventing comment spam)

I’ve gone with SecureImage as my Captcha. It requires the user to type in some random letters that are displayed in slightly distorted form for a comment to be posted. The plugin was nice and self-contained, some Captchas require the wordpress files to be hacked in various places, but all that was required was to drop the file into the “plugins” directory, then enable it through the WordPress interface.

One gotcha was the choice of font – by default, SecureImage expects to use a font called FreeSansBold. I don’t have this, and as a result got a blank image. Makes it unreasonably hard for the user to guess the random letters, in my opinion ;) . Changing the default font fixed all that though.

So, welcome back comments!

Sudokulet 1.1

January 8th, 2006

Sudokulet (a Sudoku solver for mobile phones) has now been upgraded to version 1.1.

The changes are pretty minor:

  • A proper “Exit” option. Some Nokias automatically add an exit option to a J2ME midlet but many devices do not… There is now always an exit option :)
  • An “About” option to get the version information, and web address for the product

The program is still free, although you have the option of making a small donation should you be feeling generous!

As before, it can be downloaded from the AITC web site at http://www.asman-it.com.au/products.html

Sudoku Solver for your Google Home Page

December 18th, 2005

Now that Google have release documentation on how to write widgets (or “modules”) for the Google Home Page, it seemed only logical to port the Sudoku Solver across.

So, you can now sign into your Google home page, read the headlines, check your stock quotes, check the weather, and solve that Sudoku you were working on during the trainride in!

You can find the details here. As the page discusses, we (AITC) have some plans for a more fully featured Sudoku “workshop” in this format. But, in the spirit of “release early, release often”, we’ve decided to make this simple version available now.

My Sudoku Solver can also take calls…

December 14th, 2005

AITC has just made available the first version of “Sudokulet” – a Sudoku solver (and player) written in J2ME which, for the layperson, means you can run it on your Java-enabled mobile phone. At last, a use for the pesky mobile phone!

You can get it from http://www.asman-it.com.au/products.html.

Its an early version, but hopefully some people will find it useful, or at least entertaining for a short while…. :)

(And the observant will notice that the 6 year old Asman IT website has changed its look. I can’t really claim its changed for the better, but at least its different! And, thanks to the complete absence of colour, should you ever choose to print out a page, you won’t run out of one particular colour in your print cartridge ;) )

Farewall interactivity

December 1st, 2005

Anyone who knows me will know thats it not such a good idea to try and set your watch by the regularity of my blog postings… ;) My enthusiasm (and spare time!) kind of comes and goes…

Nontheless, I spend at least a couple of minutes a day on my blog. Why? *&^*&^Y&*&^ Spam comments! Even though 99% of the comments go to moderation (depriving them of their valuable link count for search rankings), I still need to go in and clean them up. What seems to happen is their automated tools post an innocuous comment like “test” (which gets through the comment spam filter), and when they see that postings go online, they hammer away adding link after link (which goes straight into limbo, awaiting moderation).

When I have an infinite amount of spare time, I might try and get some captchas working. In the meantime, comments are now turned off. :(

Its that time of year again

October 16th, 2005

Got up nice and early today to take my road bike out for a little pedal. The weather was glorious – blue skies, but not too hot, maybe 20 degrees. It was early, around 7am, so traffic wasn’t too bad.

Would have been idyllic if it wasn’t for the 5 different magpies taking offense at my presence during the hour long ride. One of them was particularly persistant, swooping me for a good kilometre or so.

I don’t bear them any ill-will though. They’re just following standard defensive behaviour based on learned experience with other humans. Swooping season last 4-5 weeks typically, which is a tiny fraction of a year, and a bike helmet protects you from most of it.

Plus its a powerful training motivator. Amazing how much faster you pedal with a magpie snapping at your ear! ;)

Book Review: Going Native

October 10th, 2005

I’ve recently finished a book called “Going Native – living in the Australian Environment” by Michael Archer and Bob Beale. I was impressed enough to decide to jot down a few items in my blog about it…

The title says it all really – its primarily about how Australia, as a society, doesn’t seem to “think Australian”. We still have a very English way of looking at things – you only have to look around at the huge lawns and cottage gardens in one of the driest continents in the world to see that. :)

The book has some further case studies of how we are often the last to realise some of the assets and benefits our continent provides. It was news to me, for instance, that we are a net importer of Eucalyptus oil – Portugal is now the world’s biggest exporter of the stuff! Bit depressing, really!

But the book isn’t a guilt trip, “woe-is-me”, type book. You leave it feeling kind of inspired. There’s great case studies of farmers who are thriving by trialling crops of various Australian natives for niche markets. Theres interesting coverage of reasearch projects. And there’s a “big picture” by the end of it all about the kind of things we could be doing as a nation to better, more effectively and more sustainably use our resources.

I can see a lot of it won’t sit neatly with many. There’s a strong case put in there for the harvesting of kangaroos, for instance, which is anathema to some. And the crux of their sustainability suggestions is based on getting native resources to turn a profit so its in peoples interest to sustain it – its best described as “hard” rational environmentalism.

But all in all, I liked it. Eye-opening in places, inspiring in others. And definitely thought-provoking, no matter where you sit on the environmental issues. Certainly worth a read.

How much does a Prius save you?

September 9th, 2005

I’ve been a proud owner of a Prius for 18 months now. I love it – its got all the features I could want (cruise control, climate control, air-bags), drives nicely, and super low fuel consumption.

I’ve had plenty of chats with my friends about how much I save in petrol, but had some spare time this evening to actually calculate it. So you can relate your experiences to mine, I drive around 20,000km a year. I used to get around 4.6-4.8 litres to the 100km. After a recent move, however, my driving is mostly made up of frequent small trips so that figure is now more like 5.2l/100km.

So, with petrol prices at $1.20/litre I’m paying $1248 a year in petrol. For comparison, according to www.greenvehicleguide.com.au, the owner of a Subaru Forester would be paying around $2640 a year. (actually, I think the real figure would be higher – the quoted fuel consumption is 11l/100km which strikes me on the low side…).

So, I’m saving around $1400 every year. Or, to put that in more meaningful terms thats 3 1/2 iPod Nano’s every year. :) Not too bad!

Of course, its nothing compared to my mountain bike – the petrol savings are even higher there ;) – but impressive nontheless. Combined with the fact that there are pretty much no sacrifices for that saving (drives like a normal car, servicing costs are the same, uses normal petrol), its a great car. Its nice when being green carries a greater reward than just a warm inner glow!

Developer Bundles

July 25th, 2005

I’ve just spent the last half-hour downloading yet more tools I need onto my main workstation. My workstation is around 1 month old – consequently, it doesn’t yet have that “wealth” of utilities, tools and must have “thinggies” (its a technical term ;) ). So, when I find a project that I’d like to explore, I find that I need to satisfy a zillion dependencies!

(The cases in point tonight are CVSNT and the J2ME toolkit. Those who know me may have a clue as to what the project of interest is…. :) )

I have a utopian solution to this problem, based on Perl (as all good utopian solutions are!). Perl has the famous CPAN repository – full of indispensable modules to expand the library. Too many indespensable libraries, in fact. So there exist a range of “bundles” – metapackages that simply point to other packages. So, you can pull down the Bugzilla package which in turn pulls down all the Perl packages required by Bugzilla.

Be cool if you could do this for something like “Developer-0.6″, right? Automatically brings down GCC, CVS, MYSQL, etc. Well, it’d be nice…..

Google Earth and learning…

July 19th, 2005

Been on my TO DO list for some time, but I finally got round to downloading Google Earth. Wow! Those crazy Google guys have done it again! They’ve taken a way-cool app, jazzed it up, and put it in the public domain.

Now, I’m not going to get into the whole “Do No Evil” Google motto, or whether they are the great saviours of the Net, or a well disguised evil corporation. But as the hours have dripped away, flying over the globe with this software, I couldn’t help but notice that I was learning “stuff”. And enjoying it!

Geography was always a subject that bored me to tears in High School. Who cares where the capital of So-And-So is? Even when my sister went overseas, knowing the name of the city she was spending the next 6 months in was enough. But now, I have to “fly” there, check it out. Zoom in to ridiculous levels of detail. There’s something almost intangible – a kind of “zing” – to the whole experience that makes you want to check this stuff out.

When they talk about computer-aided education, this is what it should be about. Not some textbook transcribed onto a computer screen with a few hyperlinks for good measure, but something a little bit outside-of-the-square that makes people want to explore.

You know?

Now, the geek in me is sitting back and waiting for them to upload the maps of Mars into that baby – that will be incredible.! Can’t wait to be flying around the surface of mars, tracking down where the little NASA rovers are currently trekking… :)