mean solar hour

简明释义

平太阳小时

英英释义

例句

1.Farmers often rely on mean solar hours to determine the best times for planting and harvesting.

农民通常依赖平均太阳小时来确定最佳的种植和收获时间。

2.During daylight saving time, the adjustment in clocks can make mean solar hours seem inconsistent.

在夏令时期间，时钟的调整可能使得平均太阳小时显得不一致。

3.To accurately set your watch, you need to understand how mean solar hours relate to standard time.

要准确地设置你的手表，你需要了解平均太阳小时与标准时间的关系。

4.The timekeeping system is based on the concept of a mean solar hour, which is defined as the average length of an hour throughout the year.

这个计时系统基于平均太阳小时的概念，定义为一年中每小时的平均长度。

5.The concept of mean solar hours is essential for understanding the Earth's rotation and its effect on time.

理解地球的自转及其对时间的影响，平均太阳小时的概念至关重要。

作文

The concept of time has fascinated humanity for centuries, serving as a fundamental element in our daily lives and activities. One of the most intriguing aspects of measuring time is the idea of the mean solar hour, which plays a crucial role in how we understand and organize our days. In simple terms, a mean solar hour refers to the average length of an hour based on the position of the sun in the sky. This measurement is essential for synchronizing our clocks and ensuring that our schedules align with the natural rhythms of the Earth. Historically, timekeeping was largely dependent on the sun's movement. Ancient civilizations observed the sun’s path across the sky, dividing the day into segments based on its position. However, this method was not without its flaws. The Earth's elliptical orbit and axial tilt cause variations in solar time, leading to discrepancies in how long a solar hour can actually be. To address this issue, the concept of the mean solar hour was introduced. A mean solar hour is defined as 1/24th of a mean solar day, which is approximately 24 hours. This means that regardless of the sun's actual position in the sky at any given moment, we can rely on the mean solar hour for a consistent measurement of time. This standardization allows us to maintain a uniform system of timekeeping that can be used across different regions and cultures. In modern society, the significance of the mean solar hour becomes even more apparent. With the advent of technology and the global interconnectedness of our world, accurate timekeeping is vital for everything from transportation to communication. Time zones were created to accommodate the differences in solar time across various locations, but they are all ultimately based on the mean solar hour. For instance, when it is noon in one part of the world, it may be early morning or late evening in another, depending on the time zone and the corresponding mean solar hour. Moreover, the mean solar hour has implications beyond mere convenience. It also influences our biological rhythms and daily routines. Our bodies are naturally attuned to the cycles of day and night, and the mean solar hour helps regulate our sleep patterns, eating habits, and overall well-being. Disruptions to this cycle, such as those caused by travel across time zones or irregular work schedules, can lead to negative health effects, highlighting the importance of maintaining a connection to the mean solar hour. In conclusion, the mean solar hour is a foundational concept in our understanding of time. It provides a framework for organizing our lives, coordinating activities, and aligning our biological rhythms with the natural world. As we continue to advance technologically and culturally, the relevance of the mean solar hour remains steadfast, reminding us of the intricate relationship between time and our existence. Understanding this concept not only enhances our grasp of timekeeping but also deepens our appreciation for the natural phenomena that govern our daily lives.

时间的概念吸引了人类几个世纪以来的关注，作为我们日常生活和活动的基本元素之一。测量时间的一个最引人入胜的方面是“平均太阳小时”（mean solar hour）的概念，这在我们理解和组织日常生活中发挥着至关重要的作用。简单来说，mean solar hour指的是基于太阳在天空中的位置计算出的平均小时长度。这一测量对于同步我们的时钟和确保我们的日程安排与地球的自然节奏一致至关重要。从历史上看，时间的计算在很大程度上依赖于太阳的运动。古代文明观察太阳在天空中的轨迹，将一天划分为根据其位置的不同段落。然而，这种方法并非没有缺陷。地球的椭圆轨道和轴倾角导致太阳时间存在变化，从而导致实际太阳小时的长度存在差异。为了解决这个问题，“平均太阳小时”的概念应运而生。mean solar hour被定义为平均太阳日的1/24，约为24小时。这意味着无论在任何给定时刻太阳在天空中的实际位置如何，我们都可以依靠mean solar hour来获得一致的时间测量。这种标准化使我们能够维持一个可以跨越不同地区和文化的统一时间计算系统。在现代社会中，mean solar hour的重要性变得更加明显。随着技术的发展和全球互联性的增强，准确的时间计算对于从运输到通信等各个方面都是至关重要的。时区的设立是为了适应各个地点之间太阳时间的差异，但它们最终都是基于mean solar hour。例如，当世界某个地方是中午时，另一个地方可能是清晨或深夜，这取决于时区和相应的mean solar hour。此外，mean solar hour不仅仅影响便利性。它还影响我们的生物节律和日常生活。我们的身体自然地与昼夜循环相协调，而mean solar hour有助于调节我们的睡眠模式、饮食习惯和整体健康。打破这种周期的干扰，例如由于跨时区旅行或不规律的工作时间，可能会导致负面的健康影响，这突显了与mean solar hour保持联系的重要性。总之，mean solar hour是我们理解时间的基础概念。它为组织我们的生活、协调活动以及将我们的生物节律与自然世界对齐提供了框架。随着我们在技术和文化上的不断进步，mean solar hour的相关性依然坚定不移，提醒我们时间与我们存在之间复杂的关系。理解这一概念不仅增强了我们对时间计算的掌握，也加深了我们对支配日常生活的自然现象的欣赏。