The creative whizzes in 2B (2011) came up with several brilliant variations on the homopolar motor design I gave them. I filmed them with my Blackberry so you don’t really get a sense of how fast they were spinning. They have so little friction that they keep turning for several minutes after the current is switched …
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Local Knowledge…
There was not much snow in evidence from my balcony yesterday. Since I don’t ski very well I thought this was probably a good thing. The locals all seemed very confident that it was going to snow but I have little confidence in weather forecasts. It started to snow at about 8pm and it is still …
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Nuclear Fusion 2…
This article was written by Ludvig Nuclear fusion is arguably one of the most important reactions that takes place. All elements, including those that make up our bodies, are the results of nuclear fusion. Briefly, nuclear fusion is the merging together of atomic nuclei. Bonding together even the lightest nuclei e.g. hydrogen and helium, requires …
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Chip Cup Rockets…
The rockets have quite a wide cross-section so there is lots of drag – that’s why they ones with smaller motors don’t go very far. The explosion from the motors before they land is designed to push out a parachute. These simple designs don’t have parachutes but it is quite simple to add one. In …
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Einstein’s Theory of Relativity (Part Two)…
As promised some months ago, here is some further information about Einstein’s theory of relativity. This is not on the Common Entrance syllabus but if you have ever wondered what E=mc2 actually means, then watch the following. It would probably be a good idea to read this post first. Don’t expect to understand it all …
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Moon Crash…
Am I the only one to have missed that there is a major event happening in space on Friday 9th October at about midday? NASA is crashing a space craft into a crater at the pole of the moon. Four minutes later they are flying another vehicle through the plume of dust and debris that …
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Quizizz Based Upon the Winky Ent 2020 Paper…
Hopefully the problems with this are now fixed. Use the same username every time you play if you want to improve your score.
A Quizizz Based Upon the 2021 KS Theory Paper…
In this quiz you do not get more points for answering more quickly. https://quizizz.com/join?gc=38207095
A Kahoot! Based Upon the 2020 KS Theory Paper…
Eagle owls…
I like the Latin names of different species. They are normally named with their genus then their species so humans are Homo sapiens. The genus is always capitalised and the whole name is in italics. I have always liked it when the genus and species are the same. I think this stems from when I …
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