地球的旋转正在加速, 缩短了几天, 并提出了关于飞跃秒的未来的问题。 Earth's rotation is speeding up, making days shorter and raising questions about the future of leap seconds.

地球的旋转速度更快, 使几天稍微短一点 以毫秒。 Earth is spinning faster, making days slightly shorter by milliseconds. 今年最短的一天是7月10日 不到24小时的1.36毫秒。 The shortest day this year was July 10, 1.36 milliseconds under 24 hours. 预测的天数会更短。 More short days are predicted. 这影响到计算机和卫星的计时,因为计算机和卫星依赖原子钟。 This affects timekeeping in computers and satellites, which rely on atomic clocks. 自1972年以来, 27个秒被添加到UTC以适应更慢的旋转,但地球的加速意味着这些添加正在减慢. Since 1972, 27 leap seconds have been added to UTC to adjust for slower rotation, but Earth's acceleration means these additions are slowing. 科学家们正在考虑到2035年消除跳跃秒,如果地球继续加速,可能出现负跳秒。 Scientists are considering the removal of leap seconds by 2035 and the possibility of a negative leap second if Earth continues to speed up.