Archive for May 1st, 2008
Fun with the Van der Graff and Animoto
Posted by: ozymandias1 on: May 1, 2008
- In: Education | Physics | Science | Static Electricity | youtube
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We had the usual fun with the Van der Graff today. The weather was rather accommodating, and it tallied nicely with the last class before the long weekend. I have never got a student’s hair to stand up dramatically, but i was drying the canvas belt with a hairdryer when I realised I could help [...]
When is a kilogram not a kilogram?
Posted by: ozymandias1 on: May 1, 2008
- In: Education | Physics | Science | youtube
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Many physics students will be familiar with the fact that the prototype kilogram is kept in a high-security vault in Paris. What I didn’t realise was that the mass of this specimen is changing, albeit very slightly. So here’s the question; if this is the one and only true version of the kilogram, and it [...]
Tags: Edddie Izzard, the kilogram
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