30 November 2011

Fuel Caps

Remote release fuel filler covers on cars.  Every one I've seen is unlocked by pulling on a bowden cable.  So if it fails you can't unlock the flap.  You're never going to notice in normal use, you'll only notice when you go to fill the car.  Ergo it's going to be empty.  Effectively you've disabled the car!  If it's empty and you can't put fuel in it, you're stuck. 

Why not have it arranged so that pulling on the cable keeps the flap locked.  To unlock you *release* the tension on the cable rather than *applying* tension to unlock it.  Should it fail, the flap is unlocked, the car still works and you can fix it when convenient.

Don't the people who design cars spend even a few seconds thinking before they start building them?

24 November 2011

Scatter Cushions

It's not just the big things I don't understand; houses, cars, people's phobias. Who gets scatter cushions? They're scattered on beds and sofas. Cushions are there to protect you from something hard. To give a “cushioning effect”.

What on earth am I being protected from on a bed or a sofa?

17 September 2011

I continue to rave like a crazy person

Last post I talked about the externalised cost of insurance and what that insurance should cost. I don't know if it came across but I put the insurance cost in the *best possible* light.

This post I'll look quickly at a more likely cost to insure and what the cost of going uninsured would really be.

Firstly I halved the number of nuclear meltdowns. I ignored the reported accidents, didn't mention the fact that accidents in Japan and communist countries are generally never reported. It's unlikely that any insurance company would be so generous and I estimated the number of required plants assuming that the load is constant when it actually fluctuates and that they produce power 100% of the time when it's actually about 75%. I also ignored the new failure mode of nuclear power plants that has only existed for the past couple of years. Software attack of the control systems. http://en.wikipedia.org/wiki/Stuxnet Previous accidents have relied on humans to make errors. For instance turning off all the safety systems (Chernobyl) or failing to take into account likely natural conditions (Fukushima) or setting fire to the control systems (Three Mile Island). Now dedicated self replicating software has been written and released specifically targeted at nuclear facilities. The likelihood an attack of this type is difficult to estimate. However, given that there have already been successful attacks carried out by this method in the 2 years that it has existed then one might conclude that the likelihood is quite high, at least as high as human error.

So just running those more realistic figures. Rather than 30 plants, probably 70 are really needed. Rather than 2 containment breaches lets assume 4. Add another 4 by software attack. 15000 reactor years, divided by 70 plants, divided by 8 breaches comes to a major containment breach predicted to average every 27 years. We're still ignoring the 25 odd reported accidents that didn't catastrophically breach containment but  did release radioactive materials. To carry the risk an insurer is going to want to get at least twice the insured amount during that 27 year period. Previously I estimated the cost of evacuating Sydney (or Melbourne by inference) at 4 T$. That's a pretty conservative estimate really. New York lost one city block 10 years ago. Despite hanging their national pride on rebuilding, not a single office space has been completed in the intervening decade. I think it's safe to assume that the rebuilding of an entire city would take at *least* 10 years. During which time the workers of the city should have their lost wages covered. The average wage in NSW is 65 000 per year and roughly half the population are wage earners. So that's 2 million times 65 000 times 10 years. 1.3 T$ for lost wages alone. Compensation for lost business for companies would have to be at least that much, another 1.3 T$. The people would need to be housed and fed during that time as well, another T$ gone there. Then you'd need to build a new city, 4 T$ there or compensate people for their lost homes and businesses, and you'd still need to build them new infrastructure in whatever places they ended up, so the cost would be similar. So that's near as makes no difference to 8 T$. To cover that risk the insurers would want around 16 T$ every 27 years. About 600 G$ a year or 60 000 dollars a year for every wage earner in Australia. Alternatively you could charge an extra 3 dollars per kWh consumed. Almost all that money would go to off shore insurers and Australia would go bankrupt quick smart as it's about 2/3rds of our GDP.

The other alternative is to externalise the risk to the public of Australia. So we know roughly what the risk is. Somewhere between my two estimates of once every 27 years and once every 250 years. Personally I think it's closer to the 27 years than the 250. So what is the hazard? Well evacuating a capital city. But what does that mean to the average person in Australia? Let's say for a moment you're not actually evacuated... All good then? Somebody Else's Problem? Ok, for a start every business in Australia is connected in some intimate way with the capital cities. If you suddenly evacuated Sydney for example, all the major local corporations would go broke all at once. The international ones would leave. The banks have huge amounts of money tied up in property and business loans. About half the property they have lent on would instantly be worth nothing and the people who owed them the money would have no jobs. So all the banks would fold and take all your savings with them. The stockmarket would fall over as most corporations went into receivership, so your superannuation would be worth nothing. No-one would be able to borrow money and millions of people would put their properties up for sale as they had no money or job, so your property value would fall to virtually nothing. It's almost certain that the government, suddenly unable to raise tax and gifted with 4 million homeless unemployed people, would start to print money like mad. Expect hyperinflation to destroy any money you have under the mattress and reduce your wage (should you still have a job) to virtually zero.

Fun! But it gets better...

Food in Australia has some of the longest distances from farm to plate and some of the most oil intensive and corporate owned agriculture in the world. With the Australian dollar in freefall the corporations all broke and no foreign exchange with which to buy oil, food production would stop as would food transport. Expect food riots.

That's if you're not one of the evacuees. Imagine how much fun they would be having.

16 September 2011

Why can't people calculate cost?

I try to be funny on this blog, but now for something completely different.  I had the most annoying "conversation" at work today. I'm wanting to talk about work but there's already a conversation going about how coal or nuclear are the only options and renewables can't ever play a part. So as I couldn't work I "joined in". I tried to say that the only way either could compete with renewables on price was by externalising the costs. So their way of discussing that was to simply tell me I was wrong and talk over the top of my reasoning.

Since I can type here and no-one can talk over the top of me, I'm going to climb on my soap box and talk about externalised costs. The externalised cost of coal is well known: possibly making the planet uninhabitable. Also taking assets owned by all and using them for the benefit of a few without compensation. Nuclear is different. The upfront cost is known. It's between 4 and 10 dollars per watt, but lets call it 4 dollars per watt. Australia draws 222 billion kWh a year (CIA fact book). That's an average of about 25 GW. So that would cost about 100 G$ to install nuclear replacement. The interest payments on that would be about 5 G$/yr. Replacement would be another 5 G$/yr to keep them up to date. So that's 10 G$/yr. Can't externalise that, but what is externalised is the risk. If one blows up then everything downwind of it is rendered uninhabitable for about 100 years or so. (Which in economic terms is forever). So say it made a city like Sydney uninhabitable. Any normal business would have to have insurance to cover any public liability costs. So what would be the cost of public liability to cover that? First you have to have some idea of the risk. There have been around 25 nuclear accidents in the 15000 reactor years that we've racked up so far in all the reactors around the world. There have been really 4 reactor meltdowns that breached the containment completely. However 3 happened together so lets call them 2 meltdowns. So say you get 2 meltdowns (really 4) per 15000 reactor years. To supply Australia you'd need about the same number of reactors as Russia, about 30. 15000/2/30 is 250. So on average you would expect a major meltdown every 250 years. So to make it worth while for an insurance company to cover the “worst case” you should expect to pay somewhat more than 1/250 of the total worst case cost. Say 1/100th of the cost. So what is 1/100th of the cost of building a replacement city and compensating all the business that have lost money from the disruption. It's hard to say, but given that you'd need to build new factories, schools, roads, hospitals, railways, ports, dams, sewers, houses, opera houses etc lets say a million dollars per person. There's 4 million people in Sydney so that's 4 T$. So the externalised cost is 1/100th of that per year. 40 G$/yr. Add the non externalised cost and you get say 50 G$/yr to make 222 billion kWh. This ignores the cost of mining and enrichment.

Compare that to renewables. Powerplant level Photovoltaics are down to 1 dollar per watt, but the sun doesn't shine all the time. Say 10 dollars a watt effectively (surely a generous multiplier!). That's 250 G$ fully installed. Using the same maths as nuclear to estimate cost of borrowings and replacement after 20 years comes to 25 G$ a year. That's half the price! (even ignoring the cost of mining and enriching uranium and disposing of the waste and decommissioning the plants which is thought to be similar in cost to building them in the first place)

24 August 2011

Naughty Words

Well not the words themselves, but people's reactions to them. There's a film just coming out now (horrible bosses) which is a comedy about three serial killers who band together to kill three people they don't like. (rather than just say “avoiding them” for instance)

It's caused a storm of controversy, not about murdering people who have annoyed you, but something apparently much worse. The actors use potty words. That's what's got it an “R” rating. I'm amazed and have complete total absence of understanding. How on earth could murder be acceptable but potty words are not? I really can't comment on that further as I've got nothing to attach to as a point of reference. I'm completely baffled.

31 July 2011

Baseball Caps

I actually wear them, but who understands them? They never fit properly, they make you hotter instead of keeping you cool and your ears get sunburnt. Of course they look completely daft too, unless you wear them back to front. Then they look about as cool as wearing your shoes on the wrong feet.

29 July 2011


How could I possibly fail to understand something so simple and basic as a house. Yet somehow, I just don't get houses.

They're individually designed by university trained professionals in consultation with the end user. Then journeymen craftsmen visit the site and craft something unique, custom built and finished in the materials and colours you specify. It's not an instant process, they will work on it for months. Yet in the end, they're all exactly the same. Slightly modified rectangular boxes with 8 foot white ceilings and a pitched roof.

Seriously there's more variation in Cars which come out of a factory production line. They're not cheap either. Despite being made of such space age materials as pine and baked dirt. Sorry, I fell into sarcasm there. Compare them with say a boat, where every cubic inch is used, sometimes several times over, the space is simply wasted. It's not like land is free, it's damn expensive but you'd never know looking at a house. A 10m by 6m catamaran has sleeping accommodation for 10 people in 5 private sleeping areas, a shower, toilet, kitchen, sundeck, indoor/outdoor entertainment area along with all the boat related stuff like sail lockers and such. The furniture all comes included in the price and yet it's cheaper than a 5 bedroom house that comes with nothing and takes up a huge area. The boat is built to ride through crashing waves, but the slightest subsidence under a house and it cracks and breaks. An actual earthquake causes it to fall on your head and kill you. Most important of all, the boat is waterproof. When it rains, you stay dry inside! If you do find water gets in, everything is waterproof and you simply dry it out and it's good as new. Compare that to a house where if it gets wet inside you basically have to rip out everything including all the interior walls and start again.

It's just water

I'm not saying that you should build a boat on land, but surely there are better ways of building in the 21st century than baking dirt into little blocks and then gluing thousands of them together to make a house. I'm not finished with all the things I don't understand about houses, but more later.

26 July 2011


I can't be alone with this one. Is there anyone (including caravannista) who understand Caravans? Ok, so I'm a motorcyclist at heart. I happily head off on a multi week trip with a daypack on my back and nothing else. Hell, I travelled 6 months around the world with a backpack which was filled with Cave Diving gear, 2 tee shirts and a pair of shorts. So there's no way I'm going to get the concept of hooking up 3 tonnes of stuff to the back of the Camry, a tinny on the top and heading off to Brunswick Heads for a month in a caravan park.

Still, the concept that they sell is that it's “luxury touring”. You can take all your own little luxuries along that make the holiday a holiday. The funny thing is that the average caravan is more expensive than you could possibly imagine. I thought of them as being like souped up box trailers with windows. Not so. They're as expensive as a house! Ok, so only the most expensive caravans are more than the cheapest house, but even so, you're looking at 50 grand for a basic one. If it lasts 20 years and then is worth nothing that's 2500/year. If you put the 50 grand in an interest bearing deposit instead that's 3000/year. So having the van is costing 5500 every year. That's enough for 2 people to fly to Fiji and stay in a resort for a month every year. Hmmm let me think, if you like luxury: Month in a resort in Fiji or a month in a tiny box in a Caravan Park in Brunswick Heads sharing a toilet and wearing thongs in the shower to stave off tinea. That's even without site fees. It's 56 dollars a night for a square of concrete to park your van on and a shower stall next to the guy who blows his nose, compared to 80 dollars a night for an ocean view bure in Fiji with all meals thrown in.

This really is Brunswick Heads Caravan park, don't you wish you were there?
So there's no luxury involved. It's far from a cheap holiday. What is it that attracts people to caravanning? I can only assume that they just like to make everyone drive the whole Pacific Highway at 60 km/h on a long weekend.
This really isn't Brunswick Heads

25 July 2011

Lack of Perspective

I don't understand people's lack of perspective. Tiny things get blown out of all proportion and significant things are ignored completely.

I was at the Coffee Van today and one of the girls at work was complaining that she wasn't going to be able to feed her children if the Carbon Tax comes in. That's right, she wasn't going to be able to feed her children... Just like Southern Sudan I suppose. We can only hope that the UN will arrive with some aid to help the poor woman. Everyone around her was agreeing what a terrible thing the Carbon Tax was going to be. I did point out that the average Carbon burn in Australia is 6 tonnes per person and her contribution would be 135 dollars a year if there were no compensation (which there is, about 50% on average). No, apparently 135 dollars a year really is all that stands between her children and starvation. Someone did point out that she could give up one of her 10 large double decaf moccochino's on soy per week and cover the whole thing, but that's also apparently out of the question, so the kids will have to starve then.

Two Soy Latte double decafs thanks

If it was just one person then I could get over it, but the whole nation is gripped with fear about a tax of 135 dollars a year. (that's going to be 50% offset). The government has fallen from winning an election a few months ago to the lowest approval ratings *ever* recorded. People are *seriously* talking about an armed revolt. http://carbontaxrevolt.org/

The average wage in Australia is 65000 dollars a year and this tax is effectively about 65 dollars a year. About 1/1000th of an average wage earner's income. So we're taking to the streets with guns over that are we? Yet we happily hand over Income Tax which for an average person is 13000 dollars, plus a medicare levy of 975 dollars, plus 75 dollars flood levy, plus council rates of about 1000 dollars, leaving you with about 50000 dollars in the hand, which when you spend it attracts GST (like VAT) of 10% for another 5000 dollars in hidden tax. So we hand over an average of about 19000 dollars without a murmur of complaint, but less than a hundred bucks is the end of the world? Yes, apparently it is.

23 July 2011

Science Documentaries

I've never understood Science Documentaries.  They're pitched so low.  Clearly aimed at people who have no interest in science at all.

I've got a tip for the makers: the people with *no interest* will *not be watching*!

Can you imagine if they did the same with other shows like football?  Instead of the Sunday night game you got this:

"We're here to make football **FUN**.  We know you think Football is just a bunch of mindless morons running around and falling down, but if you look closely, Football has it's own special beauty.  Now we're not going to watch an actual game, played by professionals, we're going to get dressed in funny clothes and pretend to play Football with children who don't know the rules either!  Come on, it's going to be great!"

Two girls, a candle, a balloon and a rubber outfit, yet still boring

22 July 2011

I just don't understand

For years I've been saying, "I just don't understand".  Today I decided to collect my lack of understanding in one place.  I hope that it's not enough to pull into a singularity of confusion.

I'll start this blog off with the very first thing I noticed that tipped me off to the fact that I just don't "get" the world.

CARS....  I started my motoring life as a motorcyclist.  On my motorcycle I can pull in the clutch, change gears, blip the throttle, brake (front and rear independently as needed) and steer any amount from one lock to the other while I activate the indicator.  All without moving a hand or foot from their normal place.  Now that might not sound like a common task, but it happens at every corner!

Then I learnt to drive a car.  What a nightmare.  To steer you have to take your hands off the steering about 5 times to get from lock to lock.  The location of the horn button varies randomly depending on where you're steering.  The location of the indicator is different when you're on highbeam and low beam.  What the hell???  To change down in a corner I have to take one hand off the wheel to operate the gears.  And what gears!  On the bike you push down to go down gears and up to go up gears.  Not in the car.  Left then up for first, down and left to get second, up in the middle for third, you get the idea.  Between all those gears are neutrals!  Endless neutrals.  What are they for?  Who needs a neutral between 3rd and 4th?  Down below there are 3 pedals despite the fact I have only 2 feet.  I could have driven an automatic, then there are only 2 pedals, matching the usual number of feet, but that's of no help as they're arranged so only your right foot can work the pedals, leaving your left foot with nothing to do.

Surely there's room for something else to distract you from the road