Yesterday we had a trip down to Palmerston North to see The Da Vinci Machines exhibition. Quite fascinating. Everybody knows some of the machines that Da Vinci drew. But I had no idea of the sheer volume or complexity of his work. He had even invented a rudimentary robot from a suit of armour powered internally by cogs and pulleys. Some of the exhibits could be tested which kept my youngest busy as he already knew everything. Oh for the naievity of being seven. The exhibition has now finished in Palmerston North. You can visit it in Nelson, Dunedin or Christchurch and I really think it is worth a visit.