Make a Difference

Day: April 22, 2009

Conficker Again

I have had two computers in today which were infected with the dreaded Conficker Worm. This was the first time I had seen it in the wild.

You can download a free Conficker (sometimes called Downadup) removal tool from Sunbelt Software, makers of the superb Vipre Anti Virus/Anti Spyware.

If you keep your computer up to date with Windows updates you should be safe. If you are already infected, Conficker will stop you accessing Windows update, and possibly other security sites. It may also stop you transfering files from CDs, DVDs or Flash drives to your computer.

If you find you are unable to access certain websites, including Windows updates, download and run the Conficker removal tool. If your computer won’t let you download the tool, take a flash drive you have not used in your computer (because otherwise you may infect any computer you plug it into), and go a friend’s house or wherever you can get internet access.

Download and save the SSClean.exe file, and take it back to your place. Run the SSClean program from the flash drive. If you are infected you will get a message saying you need to restart and scan again. Do so.

You should now be able to download and run any Windows updates. Then run a full virus scan with your normal anti-virus. Then run SSClean again.

Another Boat Intercepted

That’s the fifth boat in a fortnight, the forteenth since the federal Labor government made changes to immigration policy last September.

No doubt we will soon be hearing repeats of the ‘Jesus was a refugee‘ motto, with the implication that anyone who questions the instant acceptance into Australian society of anyone who turns up must therefore be unchristian and uncaring. Because if you turn anyone away, then you would have turned Jesus away.

It’s all very well wanting to appear compassionate. And if appearance is all you care about, then sure, let’s just take anyone who has the money or other means to push their way to our shores.

But the fact is we cannot take everyone who would like to come. We don’t have the water, we don’t have the infrastructure to take a large proportion of all the refugees in the world, certainly not in a short period of time, and equally certainly not without careful planning.

And the wish of others to come has to be balanced against the right of those already here to be protected from people would would bring to Australia the violence or intolerance or whatever it is they want to escape from in their homeland.

In other words, we have to be selective. We should be generous. If we want to continue to be able to be generous, we must also be careful about how many, and who, come to Australia.

Those who appear in Australian waters uninvited may not be, and probably are not, the most needy or deserving. They are simply those who have the money or other means to try to shortcut a system of review that is designed to find and help those most in need of help. In the case of the last few boats, the people on them had already travelled half way around the world, and through at least half a dozen countries to get here.

A truly compassionate approach will do everything reasonably possible to discourage illegal immigration, because the need to shelter, feed and process illegal immigrants, and to provide them and their children with medical care and education, all takes money and resources that could be spent finding and welcoming people who do not have the resources to push their way to the head of the queue.

As I have noted before, the result of the Labor government’s wanting to appear compassionate is actually more suffering, both for those who come expecting a softer welcome and are turned away, and for those who wait in refugee camps around the world, and will have to wait longer because resources that could have gone to preparing them to come to Australia must instead be utilised supervising queue jumpers.

Numeracy Test Answers And Explanations

The questions at the end of the article on NAPLAN testing (a few posts below) were selected from those close to the end of the paper. They are among the harder questions

Question One.

Each person gets two votes. So there will be twice as many votes as people. Add up the number of votes shown by each bar in the graph to get a total number of votes. Divide that total by two. There are twenty-six votes, so there are thirteen people in the club.

Question Two.

I had to stop and think about this one. There are two unknown factors of 96. One factor divided by the other = six. So (at least) one of the two factors is divisible by six.

The next step, unless you are very brainy, is to write down the six times table: 1×6=6,2×6=12, 3×6=18, 4×6=24. We can stop there, because 4×24=96. So we know 4 and 24 are the two mystery factors.

We can check by remembering that the problem tells us their product is 96, and that one divided by the other is 6. 24 x 4 = 96. 24 divided by 4 is 6.

Question 3.

Total weight lifted = 26kgs. The bar weighs 4kgs. So the total amount of weights to be added to the bar is 22kgs. Divide this by two to get the amount to put on each side = 11kgs.

Of the weights shown, what combination will make 11kgs? Three 2kg weights, and one 5kg weight. So to show the total number of weights used, you would shade six 2kg weights, and two 5kg weights.

These questions are not easy – but why should they be? Most of the questions, like problems one and three in my examples, involve  commonplace, real life applications of maths skills.

I won’t wish students and teachers good luck. Too much everyday success or failure is blamed on luck or the lack of it.

With good teaching and conscientious study, you don’t need good luck.

Best Chance Yet For Extra-Terrestrial Life

Scientists at the Geneva Observatory in Switzerland have found an earth-like planet orbiting the red dwarf start Gliese, about 20 light years away. The planet’s gravity is too high to support life in forms similar to those of living things on Earth.

But the estimated average temperature of the planet is 0-40 degrees Celsius. This means that most of the water on the planet will be in liquid form.

On Earth, anywhere there is liquid water, there is life.  So the chances are very good indeed that some sort of life exists on the newly discovered planet.

Let’s go say hello!

A Few Windows Tips

1. Don’t install Apple’s Bonjour programme.

Bonjour is meant to simplify network setup and connectivity between your computer and ‘smart’ devices. In fact Windows handles network setup perfectly well, and Bonjour simply adds another layer of complication. In some cases it will stop internet access completely. If you are running Vista and install service pack 2 (still at RC stage), and then find you have no internet access, Bonjour is almost certainly the cause.

Google lists about 1.5 milion pages if you search under Bonjour problems. One of those problems is that it installs itself on your system without your permission. That’s just rude.

Check to see whether it is installed on your computer. If it is, uninstall it.

2. Don’t install Magentic wallpapers or screensavers.

You may be offered these, or already have them, if you use (why?) Incredimail.  They look pretty, but can cause a number of problems, including making Internet Explorer pop up a difficult to get rid of blank page whenever the screensaver kicks in.

3. If you use Office 2007 and have lost or cannot see the ribbon, right click on the menu bar and uncheck ‘Minimize the Ribbon.’

Climate Changing On Climate Change

This from the current edition of The Professional Edge, the journal of the Association of Professional Engineers and Geo-Scientists of Saskatchewan. This links to a PDF file. See from page ten on.

A couple of excerpts:

Add a dash of guilt and fear of the apocalypse, and how can the citizenry resist the call to “save the planet”? But when you stop and think about it, the apocalyptic predictions don’t quite make sense scientifically…

Therefore the suspicions of any scientist should be aroused by glib assertions like “the science is settled” or “there is a consensus,” because this is not how scientists and engineers operate. Al Gore’s movie and books are so appallingly riddled with mistakes and outlandish exaggerations that they would be laughable if they weren’t taken so seriously by so many…

There has grown a whole industry of  taxpayer-funded climate modellers whose equations can’t reproduce last week’s weather let alone past climate change at all, but whose crystal balls universally forecast impending disaster (and of course the urgent need for more research money)…

Why haven’t physicists pointed out the basic mistakes in the science? Why haven’t more geoscientists stood up to correct the misconceptions about natural, long-term climate change?

Via Small Dead Animals

Strangely, Something Worthwhile at Durban II

The U.N. Durban II (Geneva) conference for racism and anti-semitism was planned and organised by the world’s worst perpetrators of racism and human rights abuses. A representative of Libyan dictator Col. Muammar Qaddafi, Mrs. Najjat al-Hajjaji, has chaired the Durban II Preparatory Committee for the past two years, and at the beginning of the conference was elected chair of the Durban II Main Committee.

The rank hypocrisy of Durban II was exposed before the world this week when UN Watch surprised the Libyan chair — by bringing a victim of Qaddafi torture to confront her on Libya’s brutal torture and scapegoating of five Bulgairan nurses and a Palestinian doctor.

From UN Watch – this links to the video.

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