The millisecond is a relatively smallTime unit, the symbol is ms, 1 second=10 minutes and seconds;1 minute/second=10 centiseconds;1 centisecond=10 milliseconds;1 millisecond=1000 microseconds;1 microsecond=1000nanosecond；1 nanosecond=1000picosecond。The minimum exposure time for a typical camera is one millisecond.
1 second (s)=10 minutes and seconds (ds)=100 centiseconds (cs)=1000 ms[2]=1000000 microseconds (μ s)=1000000000 nanoseconds (ns)=10000000000000 picoseconds (ps)=10000000000000000 femtoseconds (fs)=100000000000000000000 attoseconds (as)=10000000000000000000000 attoseconds (zs)=10000000000000000000000000000000000 one second (ys)
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The unit of time can range from very small to very largedescribeIs time unit conversion[1]。
One second
（second）
A heartbeat of a healthy person lasts about one second.AmericanEating 350 yuan every secondPizza。The earth revolves around the sun for 30 kilometers every second, while the sun travels 274 kilometers in the Milky Way at the same time.One second is not enough for the moonlight to reach the earth (1.3 seconds).In the traditional sense, one second is one sixtieth of one sixtieth of a day, but scientists have given a more precise definition: the duration of 9 192 631 770 cycles of the hyperfine energy step transition of the ground state of cesium 133 atom is called one second (s in English).
One minute and one second
（decisecond）
In the fable, the time of "blink of an eye" is one tenth of a second (abbreviated as ds).The human ear needs one tenth of a second to distinguish the echo.Voyager 1, an aircraft flying far away from the solar system, flies about two kilometers away from the sun every tenth of a second.The hummingbird can flap its wings 7 times at this time.The tuning fork tuned from A to C vibrates 4 times.
One centisecond
（centisesond）
One hundredth of a second (cs)
One millisecond
（millisecond）
That is one thousandth of a second;ten−3(seconds to the minus third power of 10)(English abbreviation ms)[2]
The minimum exposure time for a typical camera is one millisecond.A housefly flaps its wings every three milliseconds;Bees fan every five milliseconds.As the moon's orbit around the earth gradually broadens, it takes two milliseconds longer to make a circle every year.In computer science, an interval of 10 milliseconds is called a jiffy.
microseconds
（microsecond）
One millionth of a second;ten−6(seconds to the minus sixth power of 10)
Light can travel 300 meters in this time, which is about the length of three football fields. However, sound waves at sea level can only travel 1/3 mm.The high-speed commercial stroboscope flashes for about 1 microsecond at a time.A barrel of explosive starts to explode about 24 microseconds after its lead wire is burned out.
One nanosecond
（nanosecond）
One billionth of a second;ten−9(seconds to the minus 9th power of 10)
Light travels only 30cm (less than one step) in a nanosecond in vacuum.It takes about 2-4 nanoseconds for a PC microprocessor to execute an instruction (such as adding two numbers).Another rare subatomic particle, the K meson, has a lifetime of 12 nanoseconds.
One picosecond
（picosecond）
One trillionth of a second;ten−12(seconds to the negative 12th power of 10)
The fastest transistor operates in picoseconds.A rare subatomic particle b quark produced by a high-energy accelerator can exist for 1 picosecond before decay.The average time of hydrogen bond between water molecules at room temperature is 3 picoseconds.
One femtosecond
（femtosecond）
That is, one billionth of a second;ten−15(seconds to the negative 15th power of 10)
One of a moleculeatomIt takes 10 to 100 femtoseconds to complete a typical vibration.It usually takes hundreds of femtoseconds to complete a rapid chemical reaction.The interaction of light with pigment on the retina (the process of producing vision) takes about 200 femtoseconds.
A fraction of a second
（attosecond）
That is, 10 billionths of a second;ten−18(seconds to the negative 18th power of 10), Ato seconds (as)
Scientists use microseconds to time instantaneous events.
Researchers have used stable high-speed lasers to generate light pulses that last only 250 milliseconds.Although this time interval is unimaginably shortPlanck timeIt's still a long time.Planck time is about 10-25 milliseconds, which is considered as the shortest possible duration.
One second
（zeptosecond）
That is, one billionth of a second;ten−21(minus 21 seconds of 10) (English abbreviation zs)
One second
（yoctosecond）
That is, one billionth of a second;ten−24(minus 24 seconds of 10)
