Friday, February 22, 2008

Automatic number plate recognition

"As of 2006, systems can scan number plates at around one per second on cars travelling up to 100 mph (160 km/h).
...
The UK has an extensive Automatic number plate recognition CCTV network. Effectively, the police and Security services track all car movements around the country and are able to track any car in close to real time. Vehicle movements are stored for 5 years in the National ANPR Data Centre to be analyzed for intelligence and to be used for evidence.
"

models and frameworks

I looked up the definitions of models and frameworks from answer.com. Here is what I found:

Model
1. A small object, usually built to scale, that represents in detail another, often larger object.
2.
1. A preliminary work or construction that serves as a plan from which a final product is to be made: a clay model ready for casting.
2. Such a work or construction used in testing or perfecting a final product: a test model of a solar-powered vehicle.
3. A schematic description of a system, theory, or phenomenon that accounts for its known or inferred properties and may be used for further study of its characteristics: a model of generative grammar; a model of an atom; an economic model.
4. A style or design of an item: My car is last year's model.
5. One serving as an example to be imitated or compared: a model of decorum. See synonyms at ideal.
6. One that serves as the subject for an artist, especially a person employed to pose for a painter, sculptor, or photographer.
7. A person employed to display merchandise, such as clothing or cosmetics.
8. Zoology. An animal whose appearance is copied by a mimic.

Framework:
1. A structure for supporting or enclosing something else, especially a skeletal support used as the basis for something being constructed.
2. An external work platform; a scaffold.
3. A fundamental structure, as for a written work.
4. A set of assumptions, concepts, values, and practices that constitutes a way of viewing reality.


So if a model is a person employed to display merchandise and a framework is an external work platform such as a scaffold, then a framework is a specialization of a model. I.e. a person is an external work platform for displaying merchandise.

Thursday, February 21, 2008

Alice in Wonderland quotes

We were discussing the meaning of "architecture", "framework" and "model", and a quote from Alice in Wonderland was brought up. A quick search reveals perhaps we were bringing up two different quotes, each relevant to the conversation in a slightly different way...

The quote I think I meant:

`When _I_ use a word,' Humpty Dumpty said in rather a scornful tone, `it means just what I choose it to mean -- neither more nor less.'

`The question is,' said Alice, `whether you CAN make words mean so many different things.'

`The question is,' said Humpty Dumpty, `which is to be master - - that's all.'

The quote I think Len meant:

`Then you should say what you mean,' the March Hare went on.

`I do,' Alice hastily replied; `at least--at least I mean what I say--that's the same thing, you know.'

`Not the same thing a bit!' said the Hatter. `You might just as well say that "I see what I eat" is the same thing as "I eat what I see"!'

`You might just as well say,' added the March Hare, `that "I like what I get" is the same thing as "I get what I like"!'

`You might just as well say,' added the Dormouse, who seemed to be talking in his sleep, `that "I breathe when I sleep" is the same thing as "I sleep when I breathe"!'

Monday, February 11, 2008

Green Bans

Wikipedia indeed has an entry about the Green Bans

http://en.wikipedia.org/wiki/Green_ban


The Green Bans Park is described in

http://www.cfmeu-construction-nsw.com.au/pdf/GreenBansApril2005.pdf


An excerpt from this description is:

At Erskineville in inner Sydney one ban prevented the government selling land to developers to build units. This land has now been turned onto a park and is called Green Bans Park. In 1995 the Roads and Traffic Authority (RTA) decided to sell land at Erskineville to developers which would have resulted in the site being developed for housing units. The state government did not seem concerned that this working class suburb had one of the lowest ratios of public space to residents anywhere in Sydney. As the site was being used for open space by the local community there was huge opposition to the RTA plans to sell off the site. Council approached the RTA to hand over the site for use as open space but this was rejected unless Council paid full market rates for the site. Unfortunately the local council could not afford to pay full market rate for the site. The local community became organised and protested against the RTA sell off plans. The CFMEU supported the community move and placed a ‘Green Ban’ on the site. This meant that CFMEU members would be encouraged, not unions, to do any building work on the site if it was sold off to a developer. Because of this green ban and the radical protest of local residents the RTA received no offers at the auction it held as it would have been very difficult for any developer to build on the site. The State Election in 1996 saw the Australian Labor Party (ALP) Opposition promise to hand the site to the local Council for use as open space if it was elected to Government. This was done in 1997 with a handover celebration in the Park when the ALP was elected to government.

Thursday, February 7, 2008

Sword Swallowing

Somehow a discussion of the gag reflex ended up by me mentioning the video of the sword swallowing demographer at TED ("Technology, Entertainment, Design"). It's worth watching, as are some of the other talks by Hans Rosling.

The online webapp displayed in the talk (Gapminder) lets you look at world statistics, and can also be fun to toy with.

Synthetic Diamonds

I mentioned at lunch that a company offered a service to turn the cremated remains of your loved ones into synthetic diamonds. I incorrectly said that they're called "Soul Gems" (these are instead from the computer game Morrowind/Oblivion). The real name is "Life Gem".

Someone at lunch wondered whether the company actually transformed the ashes you send them. This possibility has also been raised by the snopes urban legend site...

Monday, February 4, 2008

Coke Zero

I couldn't help but notice today that there was only one kind of soft drink being consumed at lunch--Coke Zero (three of the eight diners at our table were drinking it). I had seen it before, but hadn't given it much thought. But today I wondered--out loud--what is the difference between Coke Zero and Diet Coke. Opinions ranged from "Coke Zero is less carbonated" to "No difference whatever, it's a marketing thing" to "Coke Zero tastes more like original Coke".

The consensus opinion from various web-sites that I visited seems to be that the only chemical difference between Coke Zero and Diet Coke is in the sweeteners: Coke Zero has about half the aspartame (Nutrasweet) but has more acesulfame potassium (ace-k) . Some commentators also claimed that Coke Zero uses the original Coke syrup formula, whereas Diet Coke uses a different formula.

But the more interesting response that emerged from the lunch-time conversation was a marketing angle: Diet Coke is aimed at women, but Coke Zero is aimed at men (who, I suppose, don't want to be seen as publicly dieting--something about our fragile masculine egos, I suppose). Coke Zero is marketed as being "calorie free" rather than "diet".

Final note: apparently there are something around 20 flavours of Coke these days, including "Diet Black Cherry Vanilla Coke"--sounds yucky.