Always worth a look inside
I joined UWCRCN when it opened 17 years ago. The labs were completely empty and the budget impressive so I went through the Pasco catalogue and ordered everything I wanted. On my list were two electro...
Pump up the volume
I've often used balloons as the theme for a design lab exercise and was wondering how to give it a new twist when I came across these mini pumps on eBay. They were really cheap so I wasn't expecting...
Lord Rayleigh
By the way Lord Rayleigh is not the same person as Walter Raleigh who according to my distant memories from old encyclopaedias introduced potatoes and smoking to Great Britain, anyway he was a Sir not...
Water world
There has been an interesting image making its appearance on the web showing what it would look like if you put all the Earth's water into a sphere and placed it on the Earth. The point being made is...
Driven to diffraction
This one is the diffraction of light by a circular aperture. I have to admit that there aren't so many occasions in the course where we really need to show things in 3D but occasionally its useful. This...
Arrows on the brain
I'm sure that when I try to go to sleep tonight I'm going to have arrows rotating inside my head. Well when you've gone to the trouble to make one arrow you might as well make many. I'm quite pleased...
Arrow in arrow out.
And here is my latest 3D offering the rotating arrow. Well I always find that some students don't understand where the cross and point symbols come from when drawing field lines, now they'll know.I drew...
Tomato Sketchup
I liked SMART tech on facebook so get updates on their products.SMARTnotes 11 is now out so I had a look to see what new features there are. It seems that notes 11 has an inbuilt web browser which will...
I'm a lumberjack am I OK?
In Norway we burn wood in the winter to heat our houses. We have electricity as well but the wood burning stove adds heat with character. You can buy wood from local farmers but real men chop their own...
The sound of one hand rotating
What is it about making your fingers perpendicular to each other that's so funny. Today I gave my class one of the many 10minute testlets designed to make sure they read between classes. This one was...