At the end of September, Doc Mike Finnley posted an interesting article about early pocket calculators that caught my eye (I avoided reading any comments). I enjoyed his construction notes, given many of these older [more…]
Introduction Some of you may know that the Doc has been ill after falling off of a ladder. A very bad accident and I was lucky not to break anything (other than my confidence at [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 have always loved snowflakes. On a chairlift, with your head down into a biting wind, one is allowed about twenty minutes to study them settling on your clothes. They have two classes of symmetry; [more…]
Placing the spacecraft in lunar orbit had not been easy. Compounding the difficulty, the engine firing, which would put the spacecraft in the right spot, had to happen while the spacecraft was out of contact [more…]
A soulmate is a person with whom one has a feeling of deep or natural affinity. This may involve similarity, love, romance, platonic relationships, comfort, intimacy, sexuality, sexual activity, spirituality, compatibility and trust. I recently came [more…]
Ah Cricket – the wonderful sound of leather on willow followed by a cucumber sandwich and cup of tea. Rather coldly defined on Wikipedia as “a bat and ball game played between two teams of [more…]
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