atomic clock

简明释义

原子钟

英英释义

例句

1.Many smartphones now rely on signals from an atomic clock 原子钟 for accurate timekeeping.

许多智能手机现在依赖于来自原子钟 atomic clock 的信号来保持准确的时间。

2.The atomic clock 原子钟 in the laboratory is accurate to within a billionth of a second.

实验室里的原子钟 atomic clock 精确到十亿分之一秒。

3.Scientists use an atomic clock 原子钟 to synchronize GPS satellites.

科学家使用原子钟 atomic clock 来同步GPS卫星。

4.The world's most precise atomic clock 原子钟 can measure time with incredible accuracy.

世界上最精确的原子钟 atomic clock 可以以惊人的准确性测量时间。

5.An atomic clock 原子钟 is essential for scientific research that requires precise timing.

在需要精确计时的科学研究中，原子钟 atomic clock 是必不可少的。

作文

The concept of time has fascinated humanity for centuries. From sundials to mechanical clocks, our quest for accurate timekeeping has evolved significantly. One of the most remarkable advancements in this field is the invention of the atomic clock, which has revolutionized our understanding and measurement of time. An atomic clock is a type of clock that uses the vibrations of atoms to measure time with incredible precision. Unlike traditional clocks that rely on mechanical parts or the movement of the sun, atomic clocks are based on the natural frequency of atoms, typically cesium or rubidium. This allows them to maintain accuracy within a few billionths of a second over long periods.The first practical atomic clock was developed in the 1950s, and since then, these devices have become essential for various applications. For instance, they are crucial in global positioning systems (GPS), telecommunications, and even in scientific research. The precision of an atomic clock ensures that GPS satellites can provide accurate location data, which is vital for navigation and mapping services.Moreover, atomic clocks play a significant role in defining the international standard for the second. The International System of Units (SI) defines one second as the duration of 9,192,631,770 cycles of radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom. This definition highlights the importance of atomic clocks in maintaining a universal time standard that can be used across the globe.The technology behind atomic clocks is also advancing rapidly. Researchers are now exploring optical lattice clocks, which utilize lasers to trap atoms and measure their frequencies. These new clocks promise even greater accuracy, potentially allowing us to redefine the second once again. As we continue to push the boundaries of timekeeping, the implications for science and technology are profound.In addition to their practical applications, atomic clocks also raise interesting philosophical questions about the nature of time itself. As we measure time with increasing precision, we must ponder what time truly is. Is it merely a human construct, or does it exist independently of our perception? The advent of atomic clocks challenges us to think deeper about these fundamental questions.In conclusion, the invention of the atomic clock represents a significant milestone in our quest for understanding time. Its unparalleled accuracy has transformed various fields, from navigation to scientific research, and continues to influence our daily lives. As technology progresses, we can only anticipate further advancements in timekeeping that will deepen our understanding of this elusive concept. The atomic clock not only measures time but also invites us to reflect on its essence and our relationship with it.

时间的概念吸引了人类几个世纪。从日晷到机械钟，我们对准确计时的追求发生了显著变化。其中一个最显著的进步是原子钟的发明，它彻底改变了我们对时间的理解和测量。原子钟是一种使用原子的振动来测量时间的钟，其精度令人难以置信。与依赖机械部件或太阳运动的传统钟表不同，原子钟基于原子的自然频率，通常是铯或铷。这使得它们在长时间内保持几亿分之一秒的准确性。第一台实用的原子钟是在20世纪50年代开发的，从那时起，这些设备在各种应用中变得至关重要。例如，它们在全球定位系统（GPS）、电信甚至科学研究中都至关重要。原子钟的精确性确保GPS卫星能够提供准确的位置数据，这对于导航和地图服务至关重要。此外，原子钟在定义国际标准秒方面也发挥着重要作用。国际单位制（SI）将一秒定义为铯-133原子基态两个超精细能级之间的辐射周期的9,192,631,770个周期的持续时间。这个定义突显了原子钟在维护全球通用时间标准中的重要性。原子钟背后的技术也在迅速发展。研究人员现在正在探索光学晶格钟，这种钟利用激光捕获原子并测量其频率。这些新型时钟承诺提供更大的准确性，可能允许我们再次重新定义秒。随着我们继续推动计时的边界，科学和技术的影响深远。除了它们的实际应用，原子钟还引发了关于时间本质的有趣哲学问题。当我们以越来越高的精度测量时间时，我们必须思考时间究竟是什么。它仅仅是一个人类构造的概念，还是独立于我们的感知而存在？原子钟的出现挑战我们深入思考这些基本问题。总之，原子钟的发明代表了我们理解时间的重大里程碑。其无与伦比的准确性改变了从导航到科学研究等各个领域，并继续影响我们的日常生活。随着技术的进步，我们只能期待进一步的计时进展，这将加深我们对这一难以捉摸的概念的理解。原子钟不仅测量时间，还邀请我们反思其本质以及我们与时间的关系。