Weasley Clock
Article excerpt
The various magic-tech objects in the Harry Potter books + movies are often ingenious and imaginative (omnioculars, Dumbledore’s Pensieve). Few stand out in my mind as vividly as the Weasley Clock. This build from maker lakeprojects turned out great (cool to see it done in German, too!). Via Instructables: I can not remember when exactly, but at one point I thought it would be very cool to have a proper working Weasley. It sholuld be a gift for my mom, who loves Harry Potter and is a huge fan of Molly Weasley. So I designed and produced this clock, which can display the location of 5 people, ever via GPS tracking or by using an app on each users phone.
The ATMOS from Jaeger-LeCoultre is a unique mechanical clock. This pendulum clock has been available for purchase since the early 1930s and is still sold today, almost identical in construction, by JLC.
The ATMOS clock uses the smallest temperature fluctuations to continuously generate energy and maintain a power reserve. Behind the extremely smooth-running movement is a hermetically sealed pressure can filled with ethyl chloride, which reacts extremely sensitively to temperature fluctuations and thus generates movement via a metal bellows: if the temperature rises, the gas in the pressure can expands and vice versa. This pressure difference drives a mechanism that in turn winds the clock. A temperature change of just one degree can generate enough energy to keep the clock going for two days. The clock therefore does not need to be wound by hand and will run almost indefinitely as long as it is exposed to the natural fluctuations of the ambient temperature.
Jaeger-LeCoultre’s ATMOS is not only a technical jewel, but also an aesthetic one. It combines traditional craftsmanship and innovative technology to create a timepiece that measures time naturally and delights clock lovers around the world.
The following is an overview of the evolution of the Atmos clock. Since its invention in 1928, the legendary Atmos clock from Jaeger-LeCoultre has been redesigned again and again. Its special feature: an almost “eternal movement“ that is powered by the breath of the world. It has always been a dream of watchmaking to construct a clock that requires no external forces to run, a perpetual motion machine, so to speak. The trick: a hermetically sealed capsule, the so-called pressure box, reacts to temperature fluctuations and thus winds the watch, without human intervention. The very delicate movement, which is designed to be extremely efficient, can thus run for many decades. A temperature fluctuation of just one degree Celsius is enough to keep the watch running for 48 hours. A masterpiece of engineering! In the following, we will try to take up the history of the models and go into the technical differences as well as the aesthetically timeless combination of classic and modern. I hope you enjoy getting to know and exploring the different calibers and variations…
Alexander Heeg Burkarderstraße 36 97082 Würzburg Tel.: +49 1788170215 E-Mail: info@atmos-atelier.de
Rüdiger Heeg Wilhelmstraße 59 63741 Aschaffenburg Tel.: +49 1759371074 E-Mail: zz-zahnraedchen@hotmail.de