Liquid-level type buoyancy world clock
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 张明德
- Publication Date
- 2010-12-29
- Estimated Expiration
- Not applicable · inactive patent
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Abstract
Description
(1) Technical field
[0001] The invention relates to a clock structure, in particular to a world clock structure which adopts a liquid level buoy type to display the time around the world. (2) Background technology
[0002] As we all know, the ancient people lived a simple life and had nothing to do except eating, fishing, hunting and making tools, so they worked at sunrise and rested at sunset, and there was no need to fight for time. Furthermore, when human beings live in groups and have transactions, it is nothing more than "the day and China are the market, and the transaction retreats." Later, with the increasing number of personnel, especially after the rise of agriculture, human beings gradually realized the importance of time. The concept of time varies with the level of human civilization. From the early "immediate effect" to measuring time with gauges or sundials, to the measurement that requires accurate time, the invention of "leakage" and the invention of water ...