The moon has always had an irresistible charm for human beings, and human beings even use this as a reference for time passing and the focus of scientific analysis. In the 18th century, Dresden, Germany, was not only the center of precision watchmaking, but also the center of astronomical observation and lunar research. To be precise, it was the systematic mapping of the lunar surface. At the Mathematics and Physics Salon in Zwinger, Dresden, astronomers use telescopes to map celestial bodies with visible topographical features in detail. Saxony’s milestones in lunar research are now displayed in the scientific history series of the Mathematical Physics Salon, which belongs to the National Art Gallery of Dresden. This pavilion was co-sponsored by Lange and has recently completed renovations and reopened to the public.
1815 RATTRAPANTE PERPETUAL CALENDAR and Lunar Instrument, Ernst Fischer, Dresden, 1875
Since the creation of the first astronomical clock in the 14th century, the horological world has moved towards a clear goal, dedicated to simulating the movement of the moon, the more accurate the better. The technical challenge of this complex device is how to get closer to the length of the new moon, which is 29 days, 12 hours, 44 minutes, and 3 seconds. Lange’s moon phase display only needs to be adjusted once every 122.6 years, and the accuracy is extremely high.
Lange returned with a good reputation in 1994. Since then, the watch factory has launched no less than 12 movements with moon phase display. One of them is based on Lange’s famous design, named LANGE 1 MOONPHASE, and the other is 1815 RATTRAPANTE PERPETUAL CALENDAR, which came out this year. The coating of the moon phase disk is another noteworthy place. Its flickering color comes from the interference effect of light waves, and only reflects the blue part of the visible spectrum.
LANGE 1 MOONPHASE and the Carving of the Moon, Edward Lyell, Ahenhold Observatory, Treptower, 1900
In the series of the Mathematical Physics Salon, chronographs and lunar science exhibits appear at the same time, which shows that the moon is extremely attractive to the two related fields of astronomy and precision watchmaking.
Ernst Fischer from Dresden spent eleven years successfully sculpting the positive shape of the moon based on photos and observations. This lunar instrument presents plains, craters, and mountains, which are amazing in both size and plasticity. Because the moon’s movement was synchronized with the earth, it was not possible to draw the ‘dark’ side of the moon. It was not until 1959 that the Soviet Lunik 3 satellite orbited the moon to break the dilemma. 1815 RATTRAPANTE PERPETUAL CALENDAR is equipped with a chronograph chronograph stopwatch, perpetual calendar, moon phase display and power reserve indicator. At first glance, it is really difficult to find this watch combined with such a large number of complicated devices.
1815 RATTRAPANTE PERPETUAL CALENDAR, placed on the map of the moon, William Gotthalf Rohrmann, Leipzig, 1824
The longest refracting telescope in the world is 35 meters long and is located at a astronomical observatory in Berlin-Trepto. The observatory was created by Friedrich Simon Archenhold and is now named after him. The design of the moon carving was also inspired by his ideas. On the basis of a tenfold magnification, the floating sculpture created the terrain of the moon. The charm of LANGE 1 MOONPHASE is being displayed in its extremely accurate and realistic charming profit and loss month.
Wilhelm Gotthelf Lohrmann, an astronomer and land surveyor working in Dresden, has been systematically observing the surface of the moon, and in 1824 published research report. He was appointed Director of the Mathematical Physics Salon in 1827, and later headed the newly-established Technical Academy. He was also Ferdinando. Adolf. One of Lange’s teachers. The recently launched Lange 1815 RATTRAPANTE PERPETUAL CALENDAR combines the extraordinary technology of the chronograph stopwatch with the precise performance of the perpetual calendar into a fascinating combination.