Diary – 6 January 2007

I was ready for the depression but it still doesn’t stop it hitting. Doing the Royal Institution Christmas Lectures was such an exhilarating, exhausting six-month roller-coaster ride. The climax was a two-week adrenaline-charged loop-the-loop staging what felt like five wild maths pantos. Then the last lecture is given, filmed and delivered and bang, the ride comes to an end and I’m spat out the other side on my own again.