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...de la Serre, a French army captain, visited the school and described his system of 12 raised dots representing sounds which could be combined to form words. Braille experimented with Barbier’s system and, by the time he was 20, he had simplified it so that each letter of the alphabet could be represented by six raised dots arranged in three rows. The dots are precisely...

...de-silencing’ mechanisms are examples of epigenetic mechanisms. The word ‘epigenetic’ means ‘above or beyond genes’ and is used to refer to the way the expression of genes can be altered as described above. The 5-HTT gene codes for the serotonin transporter protein – that is, it provides cells with the ‘instructions’ needed to make the protein. As a...

...de mer. And it was absolutely beautiful overlooking the sea in Cascais. We had a discussion, and we said, Sam, do you want to keep doing triathlons, or would you prefer to get another job? And his answer was, definitely triathlons, Dad. And then we made another decision. Is this a bucket list, or can he become a professional? Can he become an elite triathlete? And then I...