Three Gyroscopes – Part 4
Introduction As a child I loved playing about with magnets – I still do. They can move heavy objects – such as lifting cars at a scrap yard. They can also move light (-weight!) objects [more…]
Introduction As a child I loved playing about with magnets – I still do. They can move heavy objects – such as lifting cars at a scrap yard. They can also move light (-weight!) objects [more…]
Introduction Cipher – meaning zero (0), nothing or an empty set. Decipher – to make something out of that seemingly meaningless nothing. Caroline or ‘Old Trout’ (as we affectionately remember her) was a brilliant mathematician. [more…]
Introduction In part one we looked at how a gyroscope seems to defy gravity. This is accomplished by angular momentum. We’ll come back to that later 🙂 In part two we looked at how a [more…]
I’ve posted these images before, but for a bit of Christmas fun I’ve added some titles. Hope that you all have a very merry Christmas and a great new year. Cheers. © text & [more…]
Introduction The “flat earth” people like to disseminate their woeful ideas. Therefore, let us spend some little time to think about the earth that we all live upon. In particular its spherical (well, almost) shape [more…]
Introduction I woke up one morning thinking, “I’ll write a few articles for GP about the gyroscope. How hard can that be?”. Hmm… Well it turns out that that was a really stupid idea. Are [more…]
If you’ve been following along (well done you!) then you might recall that we need a fast switch that works at a very high voltage for the laser’s pump lamp and, indeed, for the laser [more…]
Lamp Light And Laser Light Pulsed lasers, like this, use an intense burst of white light (lasting fractions of a second) to stimulate the electrons in the laser’s gain medium. In the above photo you [more…]
Introduction First of all, it’s great to see that Going-Postal is still up and running. It’s always a pleasure to write an article and have it published here. It’s also good to see a lot [more…]
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