Showing Results 1 - 8 of 8
This illustration of an armillary sphere is from a treatise on astronomy, Sefer mareh ha-ofanim (The Appearance of the Heavenly Beings), by Solomon ben Abraham Avigdor. The treatise was mostly a…
The rule of the aforementioned fifth and sixth items, which concern going to bed and rising. It is stated and summarized from what has been said in the past, that sleep being so harmful…
This elaborate Italian kabbalistic manuscript depicts the inner processes of the divine (the sefirot) in the shape of a tree (in Hebrew, ilan), or tree of life. Visualization plays an important part…
This illustration of the (Aristotelian) cosmos appears in an eighteenth-century manuscript of Neḥmad ve-na‘im (Nice and Pleasant), David Ganz’s posthumously published book on astronomy.
This foldout calendar is a beautifully illuminated feature that appears in a sefer ‘evronot. Works of this genre were Jewish calendar handbooks for calculating the dates of religious holidays and…
This diagram of the cosmos is from a treatise on astronomy, Sefer mareh ha-ofanim (The Appearance of the Heavenly Beings), by Solomon ben Abraham Avigdor. The treatise was mostly a translation of…
To the Most Serene Great Prince of Etruria, Hero and Admirable Man, Cosmo the Third
To the Most Serene Great Prince.
In this era of ours, Most Serene Great Prince, when the various branches of…
In order to know whether our comet was one of the those that the astrologers described, it is necessary to…