equation of time

简明释义

均时差时差

英英释义

例句

1.Understanding the equation of time 时间方程 is crucial for accurate navigation at sea.

理解<equation of time>对于海上导航的准确性至关重要。

2.To adjust for the equation of time 时间方程, he modified his clock to ensure it was synchronized with solar time.

为了调整<equation of time>，他修改了他的时钟，以确保它与太阳时间同步。

3.The differences in sunrise and sunset times can be attributed to the equation of time 时间方程.

日出和日落时间的差异可以归因于<equation of time>。

4.Farmers often consult the equation of time 时间方程 to plan their planting schedule.

农民们常常参考<equation of time>来规划他们的种植时间表。

5.The astronomer explained how the equation of time 时间方程 affects the accuracy of sundials.

天文学家解释了<equation of time>如何影响日晷的准确性。

作文

The concept of the equation of time is one that often perplexes those who are not well-versed in astronomy or the science of timekeeping. At its core, the equation of time refers to the discrepancy between solar time and clock time. This difference arises due to two main factors: the elliptical shape of the Earth's orbit around the Sun and the tilt of the Earth's axis. Understanding this concept is essential for anyone interested in how we measure time and how it relates to the natural world. To grasp the importance of the equation of time, we must first consider how time has been measured throughout history. Ancient civilizations relied on sundials, which directly tracked the position of the sun in the sky. However, as societies advanced and the need for more precise timekeeping grew, mechanical clocks were developed. These devices, while more accurate in a controlled environment, did not account for the variations introduced by the equation of time. As a result, people began to notice that their clocks did not always align with the position of the sun, leading to confusion and the need for adjustments. The equation of time can be illustrated through a simple example: imagine a day in which the sun rises at 6:00 AM according to a sundial but your clock shows 6:10 AM. This ten-minute discrepancy is a result of the equation of time, which varies throughout the year. In some months, the difference can be as much as 16 minutes, while in others, it may be negligible. This variation is primarily due to the eccentricity of the Earth's orbit and its axial tilt, which affects the speed at which the Earth moves in relation to the sun. For practical purposes, the equation of time is crucial for astronomers, navigators, and even casual stargazers. It allows them to convert between solar time and the time indicated by their clocks, ensuring that they can accurately track celestial events. For instance, when planning an observation of a solar eclipse or a meteor shower, knowing the equation of time helps enthusiasts determine the best times to view these phenomena. Moreover, the equation of time serves as a reminder of the complexities of our planet's movements. It underscores the fact that time is not a uniform, constant entity; rather, it is influenced by various astronomical factors. This understanding can deepen our appreciation for the natural rhythms of the universe and the intricate dance of celestial bodies. In conclusion, the equation of time is a fascinating topic that bridges the gap between timekeeping and astronomy. By recognizing the differences between solar time and clock time, we gain insight into the workings of our planet and its relationship with the sun. Whether you are an amateur astronomer or simply curious about the nature of time, exploring the equation of time can enhance your understanding of the world around you. As we continue to advance technologically, it remains vital to remember the natural phenomena that govern our lives, reminding us that time is more than just numbers on a clock; it is a reflection of the universe itself.

“时间方程”的概念常常让那些不精通天文学或时间测量科学的人感到困惑。从根本上说，“时间方程”指的是太阳时间与钟表时间之间的差异。这种差异主要由于两个因素引起：地球绕太阳的椭圆形轨道和地球轴的倾斜。理解这一概念对于任何对我们如何测量时间以及它与自然世界的关系感兴趣的人来说都是至关重要的。要理解“时间方程”的重要性，我们首先必须考虑历史上人们如何测量时间。古代文明依赖日晷，直接跟踪太阳在天空中的位置。然而，随着社会的发展，对更精确的时间测量的需求不断增长，机械钟被发明出来。这些设备虽然在受控环境中更为准确，但并未考虑“时间方程”所引入的变化。因此，人们开始注意到他们的钟表并不总是与太阳的位置一致，这导致了困惑和调整的需要。“时间方程”可以通过一个简单的例子来说明：想象一天，太阳根据日晷在早上6:00升起，但你的钟表显示6:10。这十分钟的差异就是“时间方程”的结果，它在一年中会有所变化。在某些月份，差异可能高达16分钟，而在其他月份则可能微不足道。这种变化主要是由于地球轨道的偏心率和其轴的倾斜，这影响了地球相对于太阳运动的速度。出于实际目的，“时间方程”对于天文学家、航海家甚至普通的观星爱好者来说至关重要。它使他们能够在太阳时间和钟表指示的时间之间进行转换，确保他们能够准确跟踪天文事件。例如，在计划观察日食或流星雨时，了解“时间方程”有助于爱好者确定最佳观看时间。此外，“时间方程”提醒我们地球运动的复杂性。它强调了时间并不是一个均匀的、恒定的实体；相反，它受到各种天文因素的影响。这种理解可以加深我们对宇宙自然节奏的欣赏以及天体之间错综复杂的舞蹈。总之，“时间方程”是一个迷人的主题，它架起了时间测量和天文学之间的桥梁。通过认识太阳时间与钟表时间之间的差异，我们深入了解了地球的运作及其与太阳的关系。无论你是业余天文学家还是对时间的本质感到好奇，探索“时间方程”都可以增强你对周围世界的理解。随着我们技术的不断进步，牢记支配我们生活的自然现象仍然至关重要，这提醒我们时间不仅仅是钟表上的数字；它是宇宙本身的反映。