Circadian clock

The Description of Circadian clock

Site Editorial Commentary：It is very hard to live without the circadian clock.

## Circadian Clock: A Unique Android Clock App

Explore the intricate mechanics of time with the Circadian Clock, a visually stunning and interactive Android application. This app goes beyond a simple time display, offering a fascinating glimpse into the inner workings of a clock mechanism, enhanced with a user-friendly interface.

### Detailed Mechanism:

The Circadian Clock presents time through a complex system of interconnected gears and rotating elements, providing a unique and engaging way to visualize time's passage. Here's a breakdown:

* **The Outer Ring:** A green outer ring with 5 primary and 300 smaller partitions completes 59/300 turns per minute, or 11.8 turns per hour.
* **Seconds Gear:** The green seconds gear, driven by the outer ring, rotates counterclockwise, completing a full rotation in a minute. Its axis completes a clockwise turn around the minute crown in one hour.
* **Minutes Hand:** The blue minutes hand rotates on the central axis, linked to the seconds gear's axis, completing a full rotation every hour.
* **Planetary Wheels:** A series of planetary wheels, including two blue and one third, that drive the fourth blue planetary wheel. The fourth wheel progresses clockwise, completing two rotations on itself and one full turn around the clock sphere every 12 hours.
* **Hours Indicator:** The big red triangle, indicating the hours, is mounted on the fourth planetary wheel. It rotates clockwise and provides rigidity to the entire structure.
* **Day and Night Cycle:** The big red triangle drives the yellow planetary wheels, representing the day-night cycle, with the yellow crown completing a full rotation every 24 hours.
* **Week Cycle:** The red triangle also drives the magenta planetary wheels, representing the days of the week, with the magenta crown completing a full rotation every week.

### Interactive Features:

The Circadian Clock offers a highly interactive experience:

* **Layer Control:** Buttons allow you to toggle various layers of the clock, revealing or hiding different components like the seconds gear, hour sphere, and the day/night cycle.
* **Customization:** Dragging allows you to move the clock around the screen and resize it using a pinch-to-zoom gesture.
* **Time Adjustment:** Dragging and rotating the red triangle allows you to manually adjust the time. The clock then uses an algorithm to reset to the system time.

### Additional Information:

* **Developer:** Maurici carbó
* **Website:** www.nummolt.com
* **Technical drawings:** Available at http://www.nummolt.com/CircadianClock/
* **Blog Post:** http://nummolt.blogspot.com/2014/03/posted-new-circadian-clock-at-google.html

### note from the Developer:

The term 'circadian' refers to the approximately 24-hour cycle. This app is a clock, with multiple layers showing overlapping mechanisms. While the app itself doesn't directly represent the biological circadian cycle, one of its layers depicts the day-night cycle. A live wallpaper version is also available.

**Paid Version:** Available at https://play.google.com/store/apps/details?id=com.nummolt.circadian.clock.wallpaper