precession of the equinoxes

简明释义

分点岁差

英英释义

例句

1.Many ancient cultures built their calendars around the precession of the equinoxes 春分的岁差 to track seasonal changes.

许多古代文化围绕precession of the equinoxes 春分的岁差建立他们的日历，以追踪季节变化。

2.The precession of the equinoxes 春分的岁差 is caused by the gravitational pull of the sun and moon on the Earth’s equatorial bulge.

由于太阳和月球对地球赤道隆起的引力作用，导致了precession of the equinoxes 春分的岁差。

3.Astrologers often consider the precession of the equinoxes 春分的岁差 when interpreting zodiac signs.

占星家在解读星座时常常考虑到precession of the equinoxes 春分的岁差。

4.The ancient Greeks were fascinated by the phenomenon known as the precession of the equinoxes 春分的岁差, which they believed affected the timing of their agricultural seasons.

古希腊人对被称为precession of the equinoxes 春分的岁差的现象深感着迷，他们认为这影响了农业季节的时间。

5.In astronomy, understanding the precession of the equinoxes 春分的岁差 is crucial for accurate star mapping.

在天文学中，理解precession of the equinoxes 春分的岁差对准确的星图绘制至关重要。

作文

The universe is a vast and intricate system, governed by physical laws that have fascinated humanity for centuries. Among these phenomena is the precession of the equinoxes, a term that describes the gradual shift in the orientation of Earth's rotational axis. This phenomenon occurs due to gravitational forces exerted by the Sun and the Moon on Earth’s equatorial bulge. As a result, the positions of the celestial poles and the equinoxes move over time, completing a full cycle approximately every 26,000 years. The precession of the equinoxes (春分点的回归) thus affects the timing of the seasons and can influence various aspects of astronomy and navigation.Understanding the precession of the equinoxes is crucial for astronomers as it helps them accurately predict celestial events. For instance, when ancient civilizations observed the stars, they relied heavily on the stability of the night sky. However, due to the precession, the position of stars changes slowly over millennia. In ancient times, the North Star was Thuban, but today, it is Polaris. This shift has implications for navigation, as sailors and explorers have historically used stars to guide their journeys.Furthermore, the precession of the equinoxes has cultural significance as well. Different cultures have developed their calendars based on the observation of celestial bodies. The changes brought about by this astronomical phenomenon can lead to discrepancies between the solar calendar and the lunar calendar, affecting agricultural practices and religious observances. For example, the timing of festivals that are tied to specific seasons may need to be adjusted as the equinoxes shift.In addition to its historical and cultural implications, the precession of the equinoxes also plays a role in our understanding of climate change. Some scientists theorize that the cycles of precession, along with other factors like axial tilt and orbital eccentricity, contribute to long-term climate patterns known as Milankovitch cycles. These cycles can influence glacial and interglacial periods, demonstrating the interconnectedness of astronomical phenomena and Earth’s climate.Moreover, modern technology has allowed us to study the precession of the equinoxes with greater precision than ever before. Astronomers use satellite data and advanced telescopes to monitor the positions of stars and planets, providing insights into the mechanics of our solar system. These observations can help refine our understanding of gravitational interactions and the fundamental forces that shape our universe.In conclusion, the precession of the equinoxes is a captivating astronomical phenomenon that intertwines with various aspects of human knowledge, from navigation and agriculture to climate science and cultural practices. By studying this phenomenon, we not only enhance our understanding of the cosmos but also gain insights into the rhythms of life on Earth. The ongoing exploration of the universe continues to reveal the complexity and beauty of the natural world, reminding us of our place within it. As we look to the stars, we are also reminded of the cyclical nature of time and the ever-changing dance of the celestial bodies above us.

宇宙是一个庞大而复杂的系统，受物理法则的支配，这些法则吸引了人类数百年的关注。在这些现象中，有一个术语叫做precession of the equinoxes（春分点的回归），它描述了地球自转轴方向的逐渐变化。这个现象是由于太阳和月球对地球赤道隆起施加的引力而发生的。因此，天体的极点和春分点随着时间的推移而移动，完成一个完整的周期大约需要26000年。因此，precession of the equinoxes影响着季节的时间，并可能影响天文学和导航的各个方面。理解precession of the equinoxes对于天文学家来说至关重要，因为它帮助他们准确预测天文事件。例如，当古代文明观察星星时，他们在很大程度上依赖于夜空的稳定性。然而，由于岁差，星星的位置在千年间缓慢变化。在古代，北极星是图班，但今天，它是北极星。这种变化对导航有重要影响，因为水手和探险者历史上一直使用星星来指引他们的旅程。此外，precession of the equinoxes还具有文化意义。不同的文化根据天体的观察制定了自己的日历。由于这一天文现象带来的变化，可能导致太阳历与阴历之间的差异，从而影响农业实践和宗教仪式。例如，与特定季节相关的节日的时间可能需要调整，因为春分点在移动。除了历史和文化的影响外，precession of the equinoxes还在我们理解气候变化中发挥着作用。一些科学家理论认为，岁差周期以及其他因素如轴倾角和轨道偏心率，可能会影响被称为米兰科维奇周期的长期气候模式。这些周期可以影响冰川期和间冰期，展示了天文现象与地球气候之间的相互联系。此外，现代技术使我们能够比以往更精确地研究precession of the equinoxes。天文学家利用卫星数据和先进的望远镜监测星星和行星的位置，从而提供关于我们太阳系机制的见解。这些观察可以帮助我们完善对引力相互作用和塑造我们宇宙的基本力量的理解。总之，precession of the equinoxes是一个迷人的天文现象，它与人类知识的各个方面交织在一起，从导航和农业到气候科学和文化实践。通过研究这一现象，我们不仅增强了对宇宙的理解，还获得了对地球生命节奏的深刻见解。对宇宙的持续探索不断揭示自然世界的复杂性和美丽，提醒我们在其中的位置。当我们仰望星空时，也提醒我们时间的循环性质以及我们头顶天体的不断变化舞蹈。