solar day

简明释义

太阳日

英英释义

例句

1.A solar day 太阳日 is defined as the time it takes for the Earth to complete one full rotation on its axis.

一个太阳日 solar day被定义为地球完成一次完整自转所需的时间。

2.In some cultures, the start of a new solar day 太阳日 is celebrated at sunset rather than midnight.

在某些文化中，新太阳日 solar day的开始是在日落而不是午夜庆祝的。

3.The length of a solar day 太阳日 is approximately 24 hours, although it can vary slightly due to the Earth's elliptical orbit.

一个太阳日 solar day的长度大约是24小时，尽管由于地球的椭圆轨道，它可能会略有变化。

4.Astronomers often use the concept of a solar day 太阳日 to calculate the positions of celestial bodies.

天文学家常常使用太阳日 solar day的概念来计算天体的位置。

5.Farmers plan their activities based on the length of the solar day 太阳日 during different seasons.

农民根据不同季节的太阳日 solar day的长度来规划他们的活动。

作文

The concept of a solar day is fundamental to our understanding of time and the natural rhythms of life on Earth. A solar day is defined as the period it takes for the Earth to rotate once on its axis relative to the Sun, which is approximately 24 hours. This cycle is what governs our daily activities, from waking up in the morning to going to bed at night. Understanding the solar day helps us appreciate the intricacies of our planet's motion and its impact on our lives.Historically, civilizations have relied on the solar day to organize their societies. Ancient cultures observed the movement of the Sun across the sky and developed calendars based on this knowledge. The Egyptians, for example, created sundials to measure time during the day, while the Mayans developed a complex calendar system that incorporated the solar day into their agricultural practices. This demonstrates how the solar day has been a guiding force in human development.In modern times, the solar day remains crucial for various scientific and practical applications. For instance, astronomers study the solar day to understand celestial mechanics and the behavior of other planets. By comparing the solar day of Earth with those of other celestial bodies, scientists can gain insights into the conditions necessary for life and the potential for habitability elsewhere in the universe.Additionally, the solar day plays a significant role in fields such as agriculture and ecology. Farmers depend on the predictable patterns of daylight and darkness to determine the best times for planting and harvesting crops. The length of the solar day varies with the seasons, influencing plant growth and animal behavior. For example, many animals have adapted their reproductive cycles to align with the changing lengths of the solar day, ensuring that their offspring are born during optimal conditions.However, the concept of the solar day is not without its complications. The Earth's axial tilt and elliptical orbit around the Sun cause variations in the length of the solar day throughout the year. This phenomenon leads to the creation of leap seconds, which are occasionally added to Coordinated Universal Time (UTC) to keep our clocks in sync with the Earth's rotation. Such adjustments highlight the dynamic nature of the solar day and the need for precise timekeeping in our increasingly globalized world.Moreover, the advent of technology has introduced new ways of measuring time that go beyond the traditional solar day. Atomic clocks, for instance, provide unparalleled accuracy and have revolutionized navigation systems, telecommunications, and financial transactions. Despite these advancements, the solar day remains a constant reference point in our daily lives, reminding us of our connection to the cosmos.In conclusion, the solar day is more than just a unit of time; it is a vital element that shapes our existence on Earth. From ancient civilizations to modern scientific endeavors, the solar day influences our routines, agricultural practices, and understanding of the universe. As we continue to explore the complexities of time and space, the significance of the solar day will undoubtedly remain a cornerstone of our quest for knowledge and harmony with the natural world.

“太阳日”的概念是我们理解时间和地球自然节律的基础。“太阳日”被定义为地球相对于太阳自转一次所需的时间，约为24小时。这个周期支配着我们的日常活动，从早上醒来到晚上入睡。理解“太阳日”有助于我们欣赏地球运动的复杂性及其对我们生活的影响。历史上，各个文明依赖“太阳日”来组织社会。古代文化观察太阳在天空中的运动，并根据这一知识制定日历。例如，埃及人创造了日晷来测量白天的时间，而玛雅人则开发了一种复杂的日历系统，将“太阳日”纳入他们的农业实践中。这表明“太阳日”一直是人类发展的指导力量。在现代，“太阳日”仍然对各种科学和实际应用至关重要。例如，天文学家研究“太阳日”，以理解天体力学和其他行星的行为。通过比较地球的“太阳日”和其他天体，科学家可以深入了解生命所需的条件以及宇宙中其他地方的宜居性潜力。此外，“太阳日”在农业和生态学等领域也发挥着重要作用。农民依赖可预测的日夜模式来确定最佳的播种和收获时机。“太阳日”的长度随着季节的变化而变化，影响植物生长和动物行为。例如，许多动物已经适应了它们的繁殖周期，以与“太阳日”的变化相一致，确保它们的后代在最佳条件下出生。然而，“太阳日”的概念并非没有复杂性。地球的轴倾角和围绕太阳的椭圆轨道导致“太阳日”的长度在一年中有所变化。这种现象导致了闰秒的产生，偶尔会添加到协调世界时（UTC）中，以保持我们的时钟与地球的自转同步。这些调整突显了“太阳日”的动态特性，以及在我们日益全球化的世界中对精确计时的需求。此外，科技的出现引入了超越传统“太阳日”的新时间测量方式。例如，原子钟提供了无与伦比的准确性，彻底改变了导航系统、电信和金融交易。尽管这些进步，“太阳日”在我们的日常生活中仍然是一个恒定的参考点，提醒我们与宇宙的联系。总之，“太阳日”不仅仅是一个时间单位；它是塑造我们在地球上存在的重要元素。从古代文明到现代科学努力，“太阳日”影响着我们的日常生活、农业实践和对宇宙的理解。随着我们继续探索时间和空间的复杂性，“太阳日”的重要性无疑将继续成为我们追求知识和与自然界和谐的基石。