Colour blindness and Bayes’ theorem

Following from my last post, there’s more to say about colour blindness in my family. This time we’ll look at my side of the family.  My maternal grandfather was red-green colour blind. That means my mother is a carrier of red-green colour blindness, with a “faulty” (well, “alternative” would be better) X-chromosome.  And as a […]

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Colour vision

We’ve known for a while that child number 1 (male) is red-green colour blind. This comes as no surprise – with his maternal grandfather being the same. The genes responsible lurk on the X-chromosome. That means mother is a carrier of red-green colour blindness, and child number 1 had a 50:50 chance of picking up […]

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Static hair

It’s one of those annoying laws of nature that the times you want to do a demonstration of static electricity with a Van der Graaf generator are the times when the atmosphere is least suited to it. Damp conditions equals a damp demonstration. But yesterday was really good. No Van der Graaf generator needed – […]

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Sucking up Spaghetti

No. I’m not talking about 6 year old boys sticking one end in their mouth and sucking.  I’m talking about vacuuming-up old bits of uncooked spaghetti on the kitchen floor. So, on taking the vacuum cleaner over the kitchen floor at the weekend, I could see that there were a few broken strands of uncooked […]

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