. . . . . The Nautilus, of the order Nautilus, is a tropical tetrabranchiate cephalopod with a multi-chambered, spiral shell. As the Nautilus grows, its shell structure describes a mathematical curve called a logarithmic spiral, which also approximates the "Fibonacci Number" series, or the so-called "golden ratio". Each Nautilus shell is cut cleanly in half to reveal the beautiful, pearlized interior. Each is 6-7 inches at at widest point, and sold by the cut half-shell. |
| MINIMUM ORDER TOTAL MUST BE $15. All of the Jensan Scientifics study materials have been reviewed by qualified scientists and educators, and no matter what size the set, information sheets are always included. The details of rock and mineral sample selections are proprietary to Jensan Scientifics. For individual questions, we welcome e-mail or calls! "Our progress as a nation can be no swifter than our progress in education" -- J. F. Kennedy
"It is mandatory that scientific art must be utilized to keep young minds engaged for the generations to come - as they are now pampered by a deep technology that demands that art and science be interrelated." - Sarah Kennedy, CEO, Jensan Scientifics LLC |