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2. Automatic quartz - Wikipedia

   en.wikipedia.org/wiki/Automatic_quartz

   Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [1] (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the inconvenience and environmental impact of ...

3. Seiko - Wikipedia

   en.wikipedia.org/wiki/Seiko

   The King Seiko 56KS movements were the same as those used in Grand Seiko’s 56GS series, Seiko Lord Matic watches, and Seiko chronometers. It was also introduced in 1968 and featured an automatic, 28,800 bph movement with 25 jewels and a 47-hour power reserve.

4. Solar-powered watch - Wikipedia

   en.wikipedia.org/wiki/Solar-powered_watch

   A Casio solar-powered watch, manufactured no later than 2009. Typically, sunlight and artificial light are absorbed by a solar panel behind the crystal. The dial is either on a layer above or actually on the solar panel. This solar panel converts the light into electrical energy to power the watch.

5. Spring Drive - Wikipedia

   en.wikipedia.org/wiki/Spring_Drive

   The Spring Drive uses a conventional mainspring [3] and barrel [4] along with automatic and/or stem winding to store energy, just as in a mechanical watch. [3] However, the escapement and balance wheel in mechanical watches is replaced by Seiko's Tri-synchro Regulator system, a phase-locked loop wherein a rotor, which Seiko refers to as a "glide wheel", is powered by the mainspring barrel via ...

6. Solar tracker - Wikipedia

   en.wikipedia.org/wiki/Solar_tracker

   The effective collection area of a flat-panel solar collector varies with the cosine of the misalignment of the panel with the Sun.. Sunlight has two components: the "direct beam" that carries about 90% of the solar energy [6] [7] and the "diffuse sunlight" that carries the remainder – the diffuse portion is the blue sky on a clear day, and is a larger proportion of the total on cloudy days.

7. Mars rover Perseverance reaches top of Jezero Crater ahead of ...

   www.aol.com/news/mars-rover-perseverance-reaches...

   NASA’s Perseverance Mars rover used its right-front navigation camera to capture this first view over the rim of Jezero Crater on Dec. 10, 2024, the 1,354th Martian day, or sol, of the mission.