atomic time

简明释义

原子时原子钟时间

英英释义

例句

1.Scientists use atomic time to synchronize experiments across different laboratories.

科学家们使用原子时间来同步不同实验室的实验。

2.For high-speed trading, financial institutions depend on atomic time for accurate timestamps.

对于高速交易，金融机构依赖于原子时间来获取准确的时间戳。

3.The International System of Units (SI) defines the second based on atomic time.

国际单位制（SI）基于原子时间定义了秒的长度。

4.The precision of atomic time measurement has improved over the years.

对原子时间测量的精确度在这些年里有所提高。

5.The GPS satellites rely on atomic time to provide accurate positioning data.

GPS卫星依赖于原子时间来提供准确的定位数据。

作文

In our modern world, the concept of time is something we often take for granted. We rely on clocks and calendars to keep our lives organized and structured. However, the way we measure time has evolved significantly over the years. One of the most precise methods of measuring time today is known as atomic time, which is based on the vibrations of atoms. This method of timekeeping has revolutionized our understanding of time and has numerous applications in various fields, including science, technology, and even everyday life.Atomic time refers to a system of measuring time that uses the natural frequency of atoms as its standard. Specifically, the most commonly used atoms for this purpose are cesium-133 and rubidium. These atoms oscillate at incredibly stable frequencies, allowing for an unprecedented level of accuracy in time measurement. For example, the International System of Units (SI) defines the second based on the vibrations of cesium atoms; one second is defined as the duration of 9,192,631,770 cycles of radiation corresponding to the transition between two hyperfine levels of the ground state of cesium-133 atoms.The development of atomic time began in the mid-20th century, when scientists sought to create a more reliable and consistent way to measure time than traditional mechanical clocks or even astronomical observations. The introduction of atomic clocks marked a significant milestone in this endeavor. These clocks are capable of measuring time with an accuracy of about one second in millions of years, making them the most precise timekeeping devices ever created.The implications of atomic time extend far beyond just keeping track of seconds and minutes. In the realm of global positioning systems (GPS), for instance, accurate time measurement is crucial. GPS satellites rely on atomic clocks to provide precise location data. Without atomic time, the accuracy of GPS would be severely compromised, leading to potential errors in navigation and timing.Moreover, atomic time plays a vital role in scientific research. Many experiments in physics and other sciences require precise timing to ensure accurate results. For example, in particle physics, researchers often use atomic clocks to synchronize experiments that involve high-speed particles. This synchronization is essential for understanding fundamental questions about the universe and the nature of matter.In addition to its applications in technology and science, atomic time also influences our daily lives in ways we might not immediately recognize. The synchronization of time across different regions of the world is largely facilitated by atomic time. Coordinated Universal Time (UTC), which is the time standard used globally, is based on atomic time and is adjusted with leap seconds to account for variations in the Earth's rotation. This ensures that our clocks remain accurate and aligned, regardless of where we are in the world.In conclusion, atomic time is a remarkable advancement in our ability to measure time with precision. It has transformed various aspects of our lives, from navigation and scientific research to the very way we perceive and coordinate time. As technology continues to evolve, the importance of atomic time will only grow, paving the way for new discoveries and innovations that rely on accurate time measurement. Understanding and mastering the concept of atomic time is essential for anyone interested in the intricacies of timekeeping and its profound impact on our world.

在我们现代世界中，时间的概念是我们常常视为理所当然的。我们依赖时钟和日历来保持生活的组织和结构。然而，测量时间的方式随着岁月的推移发生了显著变化。今天，最精确的时间测量方法之一被称为原子时间，它基于原子的振动。这种计时方法彻底改变了我们对时间的理解，并在科学、技术甚至日常生活的各个领域有着广泛的应用。原子时间是指一种使用原子的自然频率作为标准来测量时间的系统。具体来说，最常用于此目的的原子是铯-133和铷。这些原子以极其稳定的频率振荡，使得时间测量的准确性达到了前所未有的水平。例如，国际单位制（SI）将秒定义为铯原子两个超精细能级之间的跃迁所对应辐射的9192631770个周期的持续时间。原子时间的发展始于20世纪中叶，当时科学家们寻求创造一种比传统机械钟表或天文观测更可靠和一致的时间测量方法。原子钟的引入标志着这一努力的重要里程碑。这些时钟能够以每百万年仅误差一秒的精度测量时间，使其成为有史以来最精确的计时设备。原子时间的影响远不止于跟踪秒和分钟。在全球定位系统（GPS）的领域，准确的时间测量至关重要。GPS卫星依赖原子钟提供精确的位置数据。如果没有原子时间，GPS的准确性将受到严重影响，导致导航和计时中的潜在错误。此外，原子时间在科学研究中也发挥着重要作用。许多物理学和其他科学领域的实验需要精确的计时以确保结果的准确性。例如，在粒子物理学中，研究人员通常使用原子钟来同步涉及高速粒子的实验。这种同步对于理解宇宙的基本问题和物质的性质至关重要。除了在技术和科学中的应用外，原子时间还以我们可能未立即意识到的方式影响着我们的日常生活。全球不同地区的时间同步在很大程度上得益于原子时间。协调世界时（UTC），这是全球使用的时间标准，是基于原子时间并通过闰秒进行调整，以考虑地球自转的变化。这确保了无论我们身处世界何地，我们的时钟保持准确和一致。总之，原子时间是我们以精确度测量时间的显著进步。它改变了我们生活的各个方面，从导航和科学研究到我们对时间的感知和协调方式。随着技术的不断发展，原子时间的重要性将只会增加，为依赖精确时间测量的新发现和创新铺平道路。理解和掌握原子时间的概念对于任何对计时的复杂性及其对我们世界的深远影响感兴趣的人来说都是至关重要的。