Zoetrope Sealife This projection was successfully applied

This projection was successfully applied in a new type of astrolabe that offered remarkable advantages over its predecessors because it could be used in any Northern latitude

Crafted of wood with green paint finish accented with brass corner pieces and clasp

Beautifully made working reproduction Rojas astrolabe

The Nocturnal is available in a larger desk model miniature desk version

Zoetrope Sealife This projection was successfully appliedThis reproduction of an early optical device employing the phenomenon of "Retinal Persistence" or Image Retention" is a fine piece for explaining how animated movies work. Sir Issac Newton experimented with this concept in the seventeenth century. In 1834 English mathematician George Horner proposed an apparatus that employed a cylindrical form, an open drum with slots at the top and an image strip placed at this bottom. This item is based on his