The nautilus shell spiral is a logarithmic spiral similar to other spirals such as the Golden Mean or phi spiral, but with slightly different proportions. A close approximation of a Golden Mean spiral, based on the Fibonacci whole number sequence.The spiral of the chambered nautilus as well as other logarithmic spirals can be found throughout the human body and nature. The drawing of the inner ear and a image of a star cluster nebula are just two examples which can be seen with a microscope or a telescope.
I started this lamp with a wire base that is soldered together. Nautilus – Living fossil
The Nautilus (in Greek 'sailor') has survived relatively unchanged for 450 million years and is one of the only shells to survive from the Dinosaurs era. This is why the Nautilus is sometimes referred to as a "living fossil". The Nautilus is a nocturnal creature and spends most of its time in the great depths of the ocean. The Nautilus shell, lined with mother-of-pearl, grows into increasingly larger chambers throughout its life and so has become a symbol for expansion and renewal.
I looked at the shell for reference but did not measure.Nautilus shell and Phi Dating back to Hindu myth, the Nautilus Shell was mentioned as a symbol of many things in the creation. It is also a symbol for the inner beauty of nature. The Nautilus shell is one of the known shapes that represent the golden mean number. The golden mean number is also known as PHI - 1.6180339... The PHI is a number without an arithmetic solution, the digits simply continue for eternity without repeating themselves. The uniqueness of the golden mean is that it can be found in all living forms such as the human skeleton, the shell and the sunflowers seeds order. Plato called this value - "The key for the universe physics".
The Golden Mean number is widely used in art, architecture and religious symbols. Artists like Da Vinci and Kandinsky have used the golden mean in their paintings. The Guggenheim museum, planned by Frank Lloyd Wright, is shaped like the shell.
The light is 12" x 12" x 6" and uses a 7 watt night light bulb Researchers found that humans will consider art work, architecture and even a face beautiful that have the golden mean proportions.
About 7 months ago with help from our daughter Norm and I tore apart our kitchen. Walls, sheet rock, all the electric, ceiling, beams under the floor, floor all had to be replaced. I have been doing the dishes in the tub on my knees for that entire time, not so bad I became very handy with paper plates. But now a few days before Christmas my boys Nick and Gil put it back together. So very nice to do the dishes standing up!
Before it started snowing today I cracked some old walnuts for the Jays and put them on the frozen bird bath. Winifred the Loyal (Winnie) knows a good walnut when she smells one and couldn’t figure why I would place them just out of her reach.
House guests Duke and Reo 2 and 3 years old. 
