Greenwich apparent time

简明释义

格林尼治视时

英英释义

例句

1.The discrepancy between local solar time and Greenwich apparent time (格林威治视太阳时) can lead to scheduling issues.

当地太阳时与格林威治视太阳时之间的差异可能导致调度问题。

2.When planning the event, we need to synchronize our watches to Greenwich apparent time (格林威治视太阳时) to avoid confusion.

在规划活动时，我们需要将手表同步到格林威治视太阳时以避免混淆。

3.The ship's captain adjusted the navigation charts to account for the difference between local time and Greenwich apparent time (格林威治视太阳时).

船长调整了航海图，以考虑当地时间与格林威治视太阳时之间的差异。

4.Astronomers use Greenwich apparent time (格林威治视太阳时) to calculate the positions of celestial bodies.

天文学家使用格林威治视太阳时来计算天体的位置。

5.At noon, the sun reached its highest point in the sky, marking Greenwich apparent time (格林威治视太阳时) for the day.

中午时分，太阳达到了天空中的最高点，标志着当天的格林威治视太阳时。

作文

The concept of time has always been a fundamental aspect of human civilization. As societies evolved, the need for a standardized way to measure time became apparent. One significant development in this regard is the establishment of the concept known as Greenwich apparent time. This term refers to the local solar time at the Prime Meridian in Greenwich, London, which is considered the reference point for timekeeping across the globe. Understanding Greenwich apparent time is crucial for various fields, including navigation, astronomy, and even daily life activities.Historically, the measurement of time was closely tied to the position of the sun. People would rely on sundials and other natural indicators to determine the time of day based on the sun's position in the sky. However, as trade and exploration expanded, it became necessary to have a more consistent and universal method of measuring time. This led to the establishment of time zones and the adoption of the Prime Meridian as the starting point for these zones.Greenwich apparent time is calculated based on the position of the sun relative to the Earth. It represents the mean solar time at the Prime Meridian, which is located at 0 degrees longitude. This means that when the sun is at its highest point in the sky at Greenwich, it is considered noon in Greenwich apparent time. As one moves east or west from this line, local solar time will vary, leading to the creation of different time zones.One of the most significant impacts of Greenwich apparent time is its role in navigation. Sailors and explorers relied heavily on accurate timekeeping to determine their position at sea. By knowing the local time at their location and comparing it to Greenwich apparent time, they could calculate their longitude. This was essential for safe and accurate navigation, especially during long voyages where landmarks were not visible.In addition to navigation, Greenwich apparent time also plays a vital role in astronomy. Astronomers use this reference point to track celestial events and make observations. By understanding how Greenwich apparent time correlates with the positions of stars and planets, they can create more accurate models of the universe and predict astronomical phenomena.Moreover, in our daily lives, Greenwich apparent time serves as a foundation for the global timekeeping system we use today. The adoption of Coordinated Universal Time (UTC), which is based on Greenwich apparent time, allows people from different parts of the world to synchronize their activities. Whether it's scheduling international flights, coordinating business meetings, or simply keeping in touch with friends across the globe, Greenwich apparent time ensures that everyone is on the same page.In conclusion, Greenwich apparent time is more than just a measurement of time; it is a critical component of how we understand and interact with the world. From navigation and astronomy to everyday life, this concept has shaped our society in profound ways. As we continue to advance technologically, the importance of accurate timekeeping will only increase, making our understanding of Greenwich apparent time all the more essential for future generations.

时间的概念一直是人类文明的基本方面。随着社会的发展，标准化测量时间的需求变得显而易见。在这方面，一个重要的发展是建立了被称为格林威治太阳时的概念。这个术语指的是位于伦敦格林威治的本初子午线的地方太阳时间，被认为是全球时间保持的参考点。理解格林威治太阳时对于航海、天文学甚至日常生活活动等多个领域至关重要。从历史上看，时间的测量与太阳的位置密切相关。人们依靠日晷和其他自然指示器来根据太阳在天空中的位置判断一天的时间。然而，随着贸易和探索的扩大，拥有一种更一致和普遍的测量时间的方法变得必要。这导致了时区的建立以及本初子午线作为这些时区起点的采用。格林威治太阳时是基于太阳相对于地球的位置计算的。它代表了本初子午线的平均太阳时间，这个位置在经度0度。这意味着，当太阳在格林威治的天空中达到最高点时，在格林威治太阳时下被认为是正午。随着人们向东或向西移动，当地的太阳时间会有所不同，从而导致不同的时区的形成。格林威治太阳时最显著的影响之一是它在导航中的作用。水手和探险家在确定他们在海上的位置时非常依赖准确的时间测量。通过了解他们所在位置的当地时间并将其与格林威治太阳时进行比较，他们可以计算出自己的经度。这对于安全和准确的导航至关重要，尤其是在长途航行中，地标不可见的情况下。除了导航，格林威治太阳时在天文学中也发挥着重要作用。天文学家使用这个参考点来跟踪天体事件并进行观测。通过理解格林威治太阳时如何与星星和行星的位置相关，他们可以创建更准确的宇宙模型并预测天文现象。此外，在我们的日常生活中，格林威治太阳时也是我们今天使用的全球时间系统的基础。协调世界时（UTC）的采用基于格林威治太阳时，使来自世界各地的人们能够同步他们的活动。无论是安排国际航班、协调商务会议，还是仅仅与全球朋友保持联系，格林威治太阳时确保每个人都在同一页面上。总之，格林威治太阳时不仅仅是时间的测量；它是我们理解和与世界互动的重要组成部分。从导航和天文学到日常生活，这一概念以深刻的方式塑造了我们的社会。随着我们在技术上的不断进步，准确时间测量的重要性只会增加，使我们对格林威治太阳时的理解对未来几代人而言变得更加重要。