As I was working I noticed that the way I designed the differential gearing actually created a spare drive that sat directly below the emperor's feet, or where they would be if he were to sit in the chariot.
Having designed and built several clocks during my career it suddenly occurred to me that when you look at the face of a clock both hands have the same center.
He was so tenacious he defied the distraction of women by refusing to have them in his presence, just as later in life he denied his blindness by calling for more and more candles.
I started by looking at what others had done before me. You see, over the years there have been attempts by many different people to reconstruct the chariot.
I think most artists find it difficult to part with their work but it's the parting that keeps us alive and keeps us working. In the case of the chariot, although it's been sold I actually still have it, just in another form.
I took lots of photographs and had planned to write a treatise on how it worked, but I quickly got bored with that idea and wrote a scientific fairy tale instead.
If you look closely you can see that they are all interconnected, symbolic of a never-ending circle in which it is simply impossible for the dog to catch the rabbit.
In practical terms the South Pointing Chariot was a simple direction finder. It could have been made to point in any direction - north, south, east or west.
In the fairy tale the painting represents the here and now. The book is actually divided into five sections, through which the key character, the muse, leads us.
Once upon a perfect night, unclouded and still, there came the face of a pale and beautiful lady. The tresses of her hair reached out to make the constellations, and the dewy vapours of her gown fell soft upon the land.
The chariot was purchased by a private collector who took it home to New York. I take pleasure in knowing that it was built to last for at least a thousand years.
The original item looked like a little hand cart with the figure of a man mounted on a platform between the wheels. The man's outstretched arm always pointed south.
