An atomic clock is a precise timekeeping device that relies on the known frequency standard of an element to keep time. Atomic...
[关键句] We've programmed it to match an atomic clock if the waterways continue to flow at their present rate. If the rivers run faster in the future on average, the clock will get ahead of standard time. If they run slower, you'll see the opposite effect.(第三段最后三句) 译文:...
Today’s most accurate atomic clock would take around 30 billion years to lose even one second.
根据第一段“Today’s state-of-the-art atomic (原子的) clocks have proven Einstein right. Even advanced physics can’t decisively tell us what time is, because the answer depends on the question you’re asking.(如今最先进的原子钟已经证明爱因斯坦是对的。即使是高级物理学也不能明确地告诉我们...
未来发展方向包括: 芯片级原子钟(Chip-Scale Atomic Clock)的微型化; 量子时钟利用离子阱技术突破现有精度极限; 与物联网结合的自主授时网络,降低对GPS的依赖。 时钟已超越简单计时工具范畴,成为维系数字文明运转的基础设施,其发展持续推动着人类对时间本质的探索。
New species evolve as substantial changes to the genotype and phenotype occur relative to sister groups and common ancestors. The molecular clock is a hypothetical device that measures when such speciation events occur based on the accumulation of changes in regions of the genome that do not code ...
Atomic Clock Among Popular Science's Best Of What's New
clock synchronization in computers ensures that all system clocks within a network are showing the same time. algorithms like network time protocol (ntp) are used to synchronize clocks within a few milliseconds of coordinated universal time (utc). this is critical in many computing and networking ...
What is the Doomsday Clock and how is it set? Image:The clock as of 28 January 2025. Pic: AP The Bulletin of the Atomic Scientists first launched the initiative in response to the threat of nuclear war in the 1940s. After the US dropped atomic bombs on Hiroshima and Nagasaki at...
A clock is a device specifically designed to indicate time using digits or hands on a dial, while a timepiece is a general term for devices that measure or indicate time.