Ἀγεωμέτρητος μηδεὶς εἰσίτω
Cities of Russia
Motto: "Сoncordia discors"
Edition - unique.
Gilded(24Kt) and patinated brass
Diameter of 270 mm.
The device should be installed not further than 200 km from Moscow. It measures the local apparent time and an apparent time in terms of summer (day sawing) and winter time. The gnomon has a nodus allowing registering the beginning of zodiac months. The accuracy of the scale of summer and winter time is 5 minutes. The accuracy of the scale of apparent time is 7 mines 30 s. The device allows observing the sun movement across the east hemisphere. The names of cities are etched on a disc according to their geographical longitude. In the moment when the gnomon shade falls on the city name there is a true noon in this city.
