世界上最短的时间单位叫做“那诺秒”。这个单位在1960年开始正式使用。我们通常感到一秒钟已经很短了,但一个“那诺秒”居然等于1.0×10-9秒。在一秒钟内,光可跑近30万千米,但在一个“那诺秒”内,它只行进约30厘米。可见,“那诺秒”这一单位之小了。 The shortest time unit in the world is called “Nanosecond”. This unit was officially used in 1960. We usually feel that a second is already very short, but a “nanosecond” actually equals 1.0 10-9 seconds. In one second, light can run nearly 300,000 kilometers, but in a “nanosecond”, it only travels about 30 centimeters. It can be seen that the unit of “nanosecond” is small.