Sunday, December 09, 2007
Wednesday, December 05, 2007
Saturday, November 24, 2007
Friday, November 23, 2007
Polyethylene Oxide - "tubeless siphon"
Last Friday, during our science session, we played with a Polyethylene oxide solution which was dyed pink. This experiment is called the "tubeless siphon" and is an example of a non-Newtonian fluid, probably because it doesn't obey the usual rules. It is used it to illustrate the strength of the hydrogen bonds.
Here's how it works.
Simply pour the solution from one beaker to another. As soon as it begins to pour, put the pouring beaker into an upright position, as if to stop pouring. You'll notice that the viscous solution continues to pour or siphons into the other beaker. Clever, huh?
Watch the video! (shot from my mobile phone)
Monday, November 19, 2007
MacBook Pro gets hard disk upgrade
Upgrading the internal hard disk in my MacBook Pro seems to be a bi-annual task these days. The demand for fast, large data storage continues to grow at a rapid pace. I've upgraded to the Hitachi 250gb, 5200rpm disk, opting for faster disk rather than more space, that comes with the 300gb 4200rpm model. Will the available storage capacity be double that of today, in six months time?
Labels:
hard disk,
macbook pro,
storage,
technical
Friday, November 16, 2007
Tuesday, November 13, 2007
Mixed aged teaching
Classes 4 and 5 are researching famous people using the Internet in preparation for writing a biography. This class of mixed aged children have been grouped by ability and it is a wonderful example of how children in the future will no longer be grouped simply because they share a birthday in the same school year. Thinking about it now, it sounds like complete madness that grouping children by age is indeed sensible or helpful for learners, whom we know, learn at different rates. It was wonderful to observe the success of this initiative, and see children brimming with confidence amongst their peers.
Sunday, November 11, 2007
Train line is back in service for the first time in 12 years.
Max, who IS the most wonderful person in the world, helped me put my model railway back into service after 12 years of disuse. Everything was found exactly how it was left, and after some gentle encouragement, we managed to get some of the trains moving again. The whole track was built around the perimeter of the loft space in the family home, making it quite an experience for a little boy of 3 years.
Max had great fun playing with the toy cars which can be placed on a transporter, which took me back to how I had modelled this on my experience of using the French Motorail. One day, I might tell you the whole story of how our car ended up in a completely different place to us, the family, on holiday to the south of France.
Max had great fun playing with the toy cars which can be placed on a transporter, which took me back to how I had modelled this on my experience of using the French Motorail. One day, I might tell you the whole story of how our car ended up in a completely different place to us, the family, on holiday to the south of France.
Friday, November 09, 2007
Friend's Reconnected
Internet now restored after troubleshooting another broadband problem. I'm amazed that what is quite a simple process is made tricky by manufacturers. Most routes configuration could be automatic, and a wizard need only request username and password. Working with Windows is a tribulation in itself as you dismiss notification after notification warming you that life will end in 60 seconds unless you scan for viruses. If it's so vital, i'd rather it just got on and done it. No wonder i'm busier than ever helping people through the nightmare.
Wednesday, November 07, 2007
Friday, November 02, 2007
3rd Billericay Scouts on the driving range
Scouts from Orion Troop developed their golf swings this evening at The Belvedere Golf Club this evening. We had the son of a former champion give instruction. However, what was more interesting was the way the scouts helped each other. Those who knew gave advice to novices. The smart ones exchanged advice for more golf balls, clearly they're not lacking in ingenuity either.
Monday, October 29, 2007
Wednesday, October 24, 2007
Thursday, October 18, 2007
Monday, October 15, 2007
Saturday, October 13, 2007
Friday, October 12, 2007
Thursday, October 11, 2007
Wednesday, October 10, 2007
Friday, October 05, 2007
Thursday, October 04, 2007
Wednesday, October 03, 2007
Monday, October 01, 2007
Saturday, September 29, 2007
Sunday, September 23, 2007
Saturday, September 22, 2007
Wednesday, September 05, 2007
Sunday, August 12, 2007
Friday, August 10, 2007
Wednesday, August 08, 2007
Sunday, August 05, 2007
Saturday, August 04, 2007
Friday, August 03, 2007
Sunday, July 15, 2007
Friday, July 13, 2007
Friday, July 06, 2007
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