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17th and 18th century
Crafted of wood with green paint finish accented with brass corner pieces and clasp
The Nocturnal is available in a larger desk model miniature desk version
This vertical disk sundial from the end of the 16th century is an unusual piece: one side has an effigy of King Philip II of Spain and the other side is a sundial
Miniature of Tide computer made by H
Zoetrope Sealife 17th and 18th centuryThis 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
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