We've had an infestation of whitefly on our herbs and lettuces. Absolutely smothering them. They've killed off the purslane, and they're retarding growth on all the rest. Little buggers.

I tried the brew described here of garlic, oil and soap. It seemed to work for a couple of days, but then they came back stronger than ever. Now I'm trying these yellow sticky traps. They certainly seem to be catching the bugs, but whether it'll make a dent I'm not sure. Might try combining the two techniques.

These sticky traps are really just glossy yellow cardboard with honey or some kind of sticky sugar syrup on them, so they wouldn't be hard to make. In fact, here's a howto for the project.

In case you hadn't heard, IceTV lost their case in the Federal Court. IceTV provide(d) an electronic programme guide (EPG) service commonly used by people with personal video recorders (PVR) that work like Tivo. In other words, you can say to your recorder "record The Simpsons whenever it is on" and the PVR, knowing the programme guide, can just schedule those recordings. Any time you want to watch some Simpsons, there'll be loads sitting there for you.

Fortunately for PVR users, there's alternative, though I suppose it's legally-dubious in that it uses screen scraping and the like to replicate the EPG. It works brilliantly though.

To my non-lawyerly eyes, this judgement seems rather far-ranging. It seems that basically any collection of data can now be covered by copyright, no matter how you recreate it. The court viewed the act of scheduling programmes on a television channel as a creative act. Having worked extensively with schedulers in a past life, I'd tend to agree, it is something these people agonise over. But I think the impact is going to be quite widespread.

For example, let's say I wanted to set up a web site that allows people to compare phone plans. I use publicly-available information about the various suppliers' pricing to build a database that is looked up to recommend a specific plan from a specific provider. This would now seem to be a breach of copyright. I work with people who design phone plans, and I can tell you it's a very creative process -- though perhaps not for the right reasons.

So this judgement seems to have impacts far beyond the commercial channels' obsession with preventing people form skipping their shitty, all-to-regular ads. It could, in fact, prevent efficient markets as in my example (though telcos go to great lengths there anyway). Is this a desirable outcome?

We've just saved $5,000 by deciding not to buy ducted heating for our house. Why were we thinking ducted heating? Well it's funny how the mind works, you end up on a path a long way from where you started. I'll step through it.

The house stays pretty cool in Summer, but it's pretty cold in Winter, so we were thinking heating. I've lived in far too many shitty rentals with draughts, no insulation and the only heating option being expensive, inefficient electric. London spoilt us for never being cold when at home.

So I started looking at gas heaters, the unflued portable kind, which come in around or under $1,000. Choice has a review of them and points out that they release CO and NOx, as well as water vapour, and the emissions can be bad for asthmatics (like Holly).

So I stepped up my thinking to a flued gas heater, to go in the fireplace in the lounge room. I didn't want one of these gas fire things that have the look of a real fire but don't actually do much int he way of heat. I want real heat, so I was looking at the nice fan-forced heaters. These start around $3,000 and go all the way up.

Now my parents have a brilliant ducted gas heating system in their house. It's lovely in every room in Winter. Prices for a small house like ours are apparently from $5,000, which was less than double what we were prepared to pay for the flued heating. You see how your mind steps up a notch without realising?

Anyway yesterday the quote came in for the ducted heating. $6270 including GST for a five-star efficient ducted system. We've ended up a long way from the grand or so I was originally thinking of. It forced something of a reality check.

If we spend a grand on a heater (actually should be a bit less) we can spend the rest on double glazing and upgrading our roof insulation. This has major additional benefits of Summer insulation and keeping out aircraft noise. To be completely serious, you only really need heating in a Sydney house for a month or two of the year. Nice to have for perhaps another month. Spending all that money for something used for a quarter of the year isn't sensible.

It's been an interesting journey, and has taught me that when you're looking at things you need to remember where you started. Go back to it and compare with the gold-plated option you're now contemplating.

Dave Cross just posted a link to the Programme for Opentech 2008 in July in London. While I've long missed all the awesome bands I've been missing in London, this is one of those events I really would love to go to.

There's really cool stuff like the stuff the mySociety guys going on over there. Hackers hacking government to make democracy work better.

I really enjoyed some of the random conferences I went to in London.

London Perl Workshop had really inspirational talks on people doing seriously awesome stuff in Perl.

Sadly defunct NTK put on a really impressive day called XCOM2002 showcasing people doing weird and cool shit with computers.

I'd love to start something like this here in Sydney. London, at the time, had NTK, which gave enormous amounts of publicity to really interesting geek stuff going on, which helped in getting the word out. Not sure there's the critical mass here, but there are certainly loads of people doing really interesting things.

Not sure how to get stuff going. I've certainly never made it to a Dorkbot here, so I'm as bad as everyone else.

Perhaps we need an NTK for Sydney? Who's up for starting one? I'd only be interested if there's some helpers. For geeks who didn't live in London between 1997 and 2006 (i.e., most of you) NTK (Need To Know) was a sarcastic weekly, purposely low-tech newsletter about what was happening in and around London. By and for geeks, particularly the charismatic Dave Green and Danny O'Brien. Wikipedia article.

About a year ago, I blogged about my shiny new bike, a Giant CRX City Pro. I was very excited about the hub gears on it. A Mark Jones found my post and asked me about it, so I figure I should share my response for anyone else considering buying it.

Glad you asked because I wouldn't recommend it!

The bike itself, frame, wheels, everything but the gearing is brilliant. A mate bought the (somewhat cheaper) deraileur version and is wildly happy with it. It's a really zippy geometry, really wants to go.

The big problem is the Nexus internal hub. It's a real pain in the arse. I was won over by the idea of zero maintenance gearing, but that just hasn't panned out.

To fix a puncture, you need a spanner and end up covered with grease getting the wheel off and on. It takes ages, and you'll get it wrong the first three or four times you do it, causing further problems. Chain tensioning isn't exactly easy, either.

What's more, a couple of weeks ago one of the anti-rotation washers (the yellow one in this picture as described here by the late, great Sheldon Brown) had one of the lugs break off, which meant the axle rotates. Taking it into the shop tomorrow.

So while I was after a much reduced maintenance bike, it really hasn't turned out that way. I managed to seriously screw things up the first few times I had punctures, requiring shop visits to sort it out and show me the right way. What's more, you need to carry a spanner and end up covered in grease.

Longest ride I've been on? Dunno, not that far, maybe 50kms. It's my commuter bike, so it normally only does 10km a day. If you're thinking of touring with it, be aware that the lowest gear isn't all that low, so loaded up and going up mountains wouldn't be good.

If I were buying again, I'd buy the derailleur version of the bike. For the price and the quality of the bike, it's an amazing deal. I might spend the difference in price on a hub dynamo and light set.

Holly and I went to see Malcolm Middleton, formerly of Arab Strap at the Hopetoun last night. Brilliant gig! As well as the miserable Scot, the two support bands were excellent, which is refreshing as "Special Guests" are often lousy.

First up were PapavsPretty, a bunch of 17 year olds with amazing talent. Their cover of Love Will Tear Us Apart was excellent, and kids playing a Yamaha DX7 that's older than them is quite amusing.

Second was Sui Zhen, a woman with a voice somewhat like the woman from Lamb. Delicate but playful songs. Quite enjoyed it.

In between sets we got talking to a couple of Belfast lads. Metal fan Mick of the cliched name looked a lot like Hank Von Helvete from Turbonegro, though I didn't point out that they're a Norwegian gay metal band.

Finally out came the miserable Scot. Brilliant, as always. He's a genius with an acoustic guitar, and the Prozac clearly isn't working.

The photo? From the dunnies at the Hopetoun. I was amused while I took a piss, anyway.

The government of Tasmania (that'd be the Lennon government, not Gunns in case you're confused) do things differently in Tasmania. They paid for a big DC power link from the island to the mainland, which was switched on just in the nick of time as Tasmania ran out of water to run its hydro dams. Apparently the link, built to export electricity to the mainland, has flowed almost exclusively in the other direction since it was built.

Anyway, when you're running cables it's very easy to stick a few fibres in the cable run, and that's what they did. Basslink includes a fibre connection to the mainland, which would be a boon to telecommunications services in the state. Currently the only active fibre is owned by the corporate gorilla Telstra, and as monopolies tend to do, they charge like there's no tomorrow. ISP Internode, which recently stopped selling residential ADSL2+ and 8 megabit ADSL1 plans, claims Telstra charges 6 times more for the Hobart-Melbourne route than they pay to ship data between Melbourne and the US.

This would, of course, all be solved if the fibre attached to Basslink were switched on. It's been sitting there since 2003, unused. Now it emerged that the company that Tasmania contracted to operate the fibre gets paid $2 million a year regardless of whether it's operating or not. So the company would need to guarantee at least $2 million in profit a year to do better than the alternative of letting the fibre sit on the bottom of the sea, dark.

This is the thing about privatisation which always ends up burning governments. The commercial world they're trying to entice holds all the cards, and has many other investment opportunities open to them. They have expensive and clever merchant bankers and lawyers, just waiting to negotiate the vendor (the government, that is, us) up against the wall. We see it time and again when previously "commercial in confidence" contracts between the private sector and governments are leaked or opened up: governments sell the family silver, but continue to take all the risks.

When negotiating these deals, the private sector always seems to manage to put in risk-avoiding clauses that leave the public sector carrying the can if it doesn't work out. With little risk, the private sector ends up just as bloated and inefficient (often even worse) as the public sector they replaced.

So if you're looking at the private sector to be more efficient, under the types of contracts that get signed, they're not. It costs more for private companies to raise money in the bond markets, so it's more expensive. And then they need a profit margin added on top. All up meaning it costs more, while tying the hands of governments for decades to come.

If you're a Tasmanian, check out Digital Tasmania and lobby your MPs to get this sorted. It's really very simple to fix. Just turn on the fibre!

While it would be a nice euphemism, Bug Girl attempted to order pubic lice over the Internet. Unsuccessfully, I might add.

From the comments:
However heinous it is to make a living selling pubic vermin over the internet, it is somehow even more despicable to take people's money and then NOT send them pubic lice.

No, not Club Kooky but Marcus Westbury at the Logies. Hilarious description of a surreal event.

Red carpet arrival. A spotter peers in limo window to see who of any interest is in the limo. "No one!" they call back to red carpet show director crew.

I thought I'd try out Firefox 3 for a bit. Part of my job is to stay up to date with the latest and greatest, and I was hoping the much-touted memory management enhancements would be a nice plus.

So far, I'm well impressed. AJAX- and JavaScript-heavy sites are vastly faster, so for example Gmail snaps open, Google Reader zips along. The CMS I use all day every day also flies. Most importantly, they really do seem to have plugged the memory leaks. By this time of day, I'd expect Firefox to be around 200 megs, having used a few AJAX sites quite heavily. Instead, it's around 115 megs with four tabs and two CMS windows open. It also seems to go down when you close tabs and windows, which is something that didn't happen before. It also remains quite zippy.

Haven't noticed any bugs or rendering weirdness yet, which is a good sign. Only problem so far is that Firebug isn't yet available. There's a version of it for Firefox 3, but it apparently has some issues. If I decide Firefox 3 is stable enough to use all the time, I'll try out the upgraded Firebug. Life without Firebug would be a much reduced life...

There's been a bit of discussion recently about Inbox Zero, getting your email inbox empty. Well I just discovered a rather radical approach to getting there. I accidentally deleted everything in the inbox. Thought I was in another folder and deleted all.

I've got backups, so if I find there's anything vital I'll be able to recover, but for now it's strangely liberating. Will see how I go.

I've always loved Hogarth's Gin Lane and Beer Street engravings. The post-industrialized world's first moral panic was due to the flood of cheap spirits, coupled with a bored and concentrated population. "Drunk for a penny, dead drunk for twopence" was the slogan of the gin palaces. Hogarth contrasted the debauched Gin Lane with the prosperous and healthy Beer Street, where the pawnbroker is out of business, the populace engaged in edifying pursuits. Kinda like the current vogue for talking about "binge drinking".

I've always wanted to buy some prints of these classic campaigning engravings. Periodically I look online and I invariably find "Gin Lane" but rarely "Beer Street" in the same format from the same vendor. Anyone got any suggestions to get this?

Alternative would be to print these public domain versions taken from Wikimedia Commons. Not sure the resolution is good enough though. I used to live around the corner from Hogarth's House and never made it there. I bet they would sell prints!

We spent the weekend staying with Scott and Katie down in Hobart. Had a really fantastic time hanging out with them, seeing the sights, drinking, eating, meeting some of their friends and catching up with our other mates who've moved down there, Martin and Jo.

Thursday night we were collected from the airport and taken back to their pad to be fed delicious mussels, rice paper rolls and pickled squid. Yummy! The seafood down there is spectacularly good and bloody cheap.

Friday we drove down to Cockle Creek on Recherche Bay, a gorgeous spot right down in the South-East of the state. The only sad part was seeing the moonscape left by clear-felling of trees by the rapacious logging company that owns Tasmania.

Friday night we hooked up with some of Scott and Katie's for a few drinks, then ate a fantastic meal down on the docks with Martin and Jo. More brilliant seafood (I had the ocean trout with sumac) and some good Tasmanian wine. The beers at the place were the fantastic (but overpriced on the mainland) Moo Brew, especially the really rich dark brew.

On Saturday we went to the amazing Salamanca Markets, which are a long strip of stalls selling great local food, tourist nick nacks and the like. I picked up an luscious blackberry jam and a small block of the most amazing, richly-flavoured percorino that had been aged two years. Lots of fun and the bratwurst made a good breakfast. Scott and I dropped into Parliament House for a tour of this big old building. Nice to see where all the dodgy decisions get made.

Saturday afternoon we drove around town a bit, and up Mount Wellington where the initial view was obscured by clouds, but just as we were leaving the clouds cleared and I got some good photos. We had a look at the outside of the Cascade Brewery, though the tours were all booked out so we missed out this time.

Today was another great day. We dropped in to see Martin and Jo's house, which is really incredible. They've been very fortunate to find such a lovely house, all ready to go. Next we all drove into town for a quick late seafood lunch on the docks again before we had to head to the airport.

Loads of fun and Hobart seems a beautiful town. Scott and Katie would love us to move down there, but I'm not sure I could cope with the cold so well. I'd miss the long, languid summers and the afternoons spent outside. I'm sure you get some of that down there, but not as much as in Sydney! On the plus side, it'd be the perfect place to grow all the fruit trees I want.

I took a bunch of photos as did Scott.

Australia has a long history of propping up the economies of the remote regions. You get tax breaks for living in remote areas, telecommunications providers are forced to provide phone services and we subsidise connecting them to the Internet. Australians have an emotional connection to the bush, despite the fact that most of us don't live there and a large proportion have never even been anywhere particularly remote.

I've been thinking about this recently after the new government's tender for a Fibre To The Node network stipulates that 98 percent of the population should have 12 megabit broadband. 12 megs is a pretty fat pipe, and you've got to wonder why they set the bar there -- was it based on any cost/benefit analysis or did they just pluck a number from the air? And where does 98% come from? What kind of density are those last few percent spread over?

What I've been considering is how much it makes economic sense to prop up all these places, and does it distort rational market incentives? For example, Australia has enormous farms in quite marginal land. Perhaps the best outcome would be to not farm these areas, given their fragility and the marginality of the business?

As another example, I once visited a family friend's enormous farm in South-West Queensland. Very dry, dusty land with a couple of sheep per square kilometre. The farmer had a main house on one side of the property and another small house on the other side of the property that was used only a couple of weeks a year. At the time, Telecom was forced to supply phone service to these remote areas at a maximum cost of $5,000 for installation. The microwave links to provision these services would have cost quite a few orders of magnitude more to supply. Because of this perverse incentive, the farmer had a phone installed at the little-used house, where previously they'd kept in contact with the main house via HF radio. So the taxpayer bore the cost of installing all this, when in reality it wasn't particularly needed.

The same idea comes in with this broadband subsidy. Now I'm sure every farmer out there would love to have metro-equivalent broadband, the ability to watch YouTube and the like. But do they really need it? I'm struggling to think of any business-essential application that would require the bandwidth and low-latency of broadband.

Telemetry from sensors would use very minimal bandwidth, and isn't all that latency-prone, so would be much more cost-effectively carried by other means. Access to weather reports and commodity prices isn't exactly high-bandwidth stuff: a 56k modem would do fine. Even having webcams strewn around a property so the farmer can keep an eye on things when away isn't going to use enormous bandwidth.

So what pressing issue requires a subsidy for this? It seems rather extravagent. The political sums don't add up either. These regions are almost all National voters, and would never elect Labor (despite the agrarian socialist Nats having more in common with the ALP than the reactionary, conservative Libs).

I've long argued that we should stop subsidising farming anything like as lavishly as we do. Farmers are business people like all others, so why do they qualify for such extravagent treatment, apart from some weird sentimentality?

At some point over the next year we're planning to renovate our kitchen. We did a very minor renovation soon after we moved in, replacing the lino floor and swapping in an Ikea bench/drawer unit, but we want to do something much more extensive.

One of the things I've been thinking about is getting the best energy efficiency out of our fridge. I've always found it a bit odd the way they're designed. Fridges work by pumping heat from the inside out to the coils normally located on the back. Wouldn't it be much more efficent to arrange the fridge similar to a split air conditioner, with the heat-release coils in a cooler location? My basic understanding of thermodynamics makes me think the higher the difference in temperature between the liquid carrying heat from inside the fridge and the air around the coils, the higher the efficiency.

Along these lines, I was wondering if efficiency would be improved by getting cooler air flowing over the coils. Since our house has a raised, wooden floor, this could be done by putting a grill in the floor, so that the convection draws cooler air from under the house over the coils. Obviously there needs to be a way for the warm air to escape as well. This arrangement should result in something of a chimney effect, with cool air drawn in at the bottom, passing over the coils, then escaping at the top.

So I dropped a note to the Alternative Technology Association who publish the excellent ReNew: Technology for a sustainable future magazine. I expected, possibly, to get a response in the magazine at some point in the future. To my surprise, I received a response the same day from Technical Editor Lance Turner.

A number of people have suggested this mod over the years, however the most important thing is that air can escape from the top of the fridge - ie, the fridge has at least a 50mm gap between it and any of the walls of the alcove, especially the top of the fridge. So long as there is enough space for air to flow freely, you will get convection happening as the condenser heats up.

Lance goes on to suggest a forced-air fan to actually blow over the condensor, particularly if you can get it to work only when the compressor is on. Quite a neat idea, but I'm keen to go with a passive approach.

So it seems that my idea has some merit, but only if there's a good way for the heat to escape. I'll look into having the hot air vent into the roof space, as well as the vent at the bottom. I think that should result in some pretty substantial efficiency gains.

Back when I used to listen to music on pieces of etched plastic, I had a simple classification system. Music was slotted into one of "Chilled", "Techno", "Hip hop", "Rock/Pop", "Classical", "Jazz", "Other". There could easily be overlap there, but because I was doing the classifying, it made sense to me.

When I started listening to mp3s, I carried over this basic system, with Rock and Pop split to separate categories and a couple of new ones added: "Reggae", "Radio" (for podcasts), "Country" (for Johnny Cash). My musical tastes got broader too, where in the 1990s I listened almost exclusively to electronic music, I started getting back into Rock, and some of the new musical forms like Post Rock (a ghastly term, worse than "Progressive <anything>".

The cracks started to show in my taxonomy. Godspeed! You Black Emperor ended up in "Chilled", yet Tortoise and M83 ended up in "Rock", by virtue of using guitars. Goldfrapp is in "Chilled", despite mostly being stomping electro, but something you could go to sleep to. I dunno, it doesn't make much sense now.

My new toy has prompted me to revisit this issue. I've long avoided music library software, preferring to browse by my own folder structure, and I despise shuffle in most circumstances, either choosing individual tracks or listening to whole albums. The Squeezebox allows me to browse by my directory structure, but it also has a bunch of other useful and cool ways to slice and dice my music, so the time has come to get my music tagged properly.

It's going to be a long process, tagging all my music. I've generally gone for <artist> - <album>/<trackno>.<trackname> but with so many, for example, Bowie albums, that's getting unmanageable too. So I might end up with artist/album/ after all, though I will never do the brain damaged thing iTunes does and move stuff from compilations into individual artist directories -- that's just dumb.

So I'll shortly be starting the Great Retagging. Any suggestions on tools and approaches?

The chemists' lobby group says banning the sale of cough medicine for children under two is "an insult to many parents". No, what's insulting is selling something that doesn't work, even in adults. Worse, unlike a placebo, these medicines contain drugs that can actually be quite dangerous.

Parents finding that their kids need something foul-tasting to resolve a persistent cough would be advised to find something vile but harmless. I wouldn't expect such advice from your local chemist though.

This is just to notify geeks out there that this data exists. I'm sure this will be of real interest to someone out there, perhaps someone building a mySociety for Australia.

The federal parliament's parliamentary library just published a paper called Postcodes in electoral divisions, and describes the postcodes in federal electoral divisions and the percentage of that postcode that is within a division. Very handy stuff, for a very narrow group of users.

The copyright statement at the end is probably boilerplate, because it certainly doesn't match up with the publication of such a useful dataset, paid for by the public.

PS: It's well worth signing up to library feeds as there's a wealth of useful stuff issued by this organisation. I've particularly appreciated the bills digests, which explain the purpose of bills before parliament in quite neutral language.

I've ordered something online and been given a tracking number from the company supplying it. Here's what I just saw when I looked up the tracking number.

I can tell you three things: One, I haven't taken delivery of the device. Two, I wasn't at home at 09:09 this morning. Three, that's not my signature. So whose signature is it?

I can only hope they've delivered it to my neighbour or something, otherwise the courier has committed fraud. Moral of the story: don't use Fastway!

It's starting to get cold in Sydney, so we're starting to think about heating and improving the house a bit. The front door has enormous gaps all around, and there's space between much of the skirting boards. This weekend I'm gonna fix the front door with some kind of automatic weather strip, as well as the squishy stuff around the sides and top edges.

I'll also look at caulking some of the skirting boards to stop any draughts. I might also consider blocking up some of the air vents, which were only ever required for gas lighting ventilation. Holly won't be keen on the idea, but we might have to look at curtains with pelmets to stop heat loss out the windows. With the right curtains, it should also reduce noise from the planes.

Speaking of gas, we're gonna get our fireplace fitted with a fan-forced, flued gas heater. These things aren't cheap, but they're very efficient and I reckon one should be able to warm the whole house enough for our needs.