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How many seconds is a second? ?
Universal time unit conversion:

1 sec = 1000 ms (milliseconds)

1 sec = 1, 000,000 microseconds (microseconds)

1 sec = 1, 000,000,000 nanoseconds (ns)

1 sec = 1, 000,000,000,000,000 picoseconds

1 sec = 1.0 billion femtoseconds

The conversion rate between seconds, milliseconds, microseconds, nanoseconds, picoseconds and femtoseconds is 1000.

Extended data:

Millisecond is a relatively small unit of time, called ms for short. The minimum exposure time of a typical camera is one millisecond. A housefly flaps its wings every three milliseconds; Mosquitoes flap their wings every 20 milliseconds; Bees flap their wings every five milliseconds. Because the moon's orbit around the earth is gradually widening, it takes two milliseconds more for it to make a circle every year.

Microseconds, μs for short. During this time, light can travel 300 meters, which is about the length of three football fields, but the sound wave at sea level can only travel 1/3 mm, and the high-speed commercial stroboscope flashes about 1 microsecond at a time. A barrel of explosives began to explode about 24 microseconds after the fuse blew.

Nanosecond, ns for short. Usually used as a unit of memory reading and writing speed. Light can only travel 30 centimeters (less than one step) in a nanosecond in a vacuum. It takes about 2 to 4 nanoseconds for a microprocessor of a personal computer to execute an instruction, such as adding two numbers. Another rare subatomic particle, the k meson, exists in12ns.

Picosecond, ps for short. The fastest transistor runs in picoseconds. A rare subatomic particle B quark produced by high-energy accelerator can exist 1 picosecond before decay. The average existence time of hydrogen bonds between water molecules at room temperature is 3 picoseconds.

Femtosecond is also called femtosecond, or fs for short. The oscillation period of visible light is 65438 0.30 to 2.57 femtoseconds. It takes 10 to 100 femtoseconds for an atom in a molecule to complete a typical vibration. It usually takes hundreds of femtoseconds to complete a rapid chemical reaction. The interaction between light and pigments on the retina (the process of producing vision) takes about 200 femtoseconds.

References:

Baidu Encyclopedia-Time Unit

Baidu encyclopedia-microsecond

Extended data

hour

An hour is a unit of time. The hour is not the basic unit of the international system of time units (the basic unit of the international system of time units is seconds), but an auxiliary unit of time coordinated with the basic unit of the international system of units. Except leap second, one hour is generally equal to 3600 seconds, or 60 minutes, or 1/24 days. "H" is often used in English or mathematics.

minute

Minutes, also called minutes, are units of time. Minute is English, which means "tiny" and also means min. Engraving = 15 minutes, word =5 minutes (usage in southern Fujian and Guangdong).

second

Seconds is the basic unit of time in the international system of units, with the symbol S, sometimes marked with English abbreviations as sec.

The prefix of the international system of units is often combined with seconds to make a finer division, such as ms (millisecond, thousandth of a second), us (microsecond, millionth of a second) and ns (nanosecond, billionth of a second). Although the international unit prefix system can also be used to extend time, such as ks (thousands of seconds), Ms (millions of seconds) and Gs (billions of seconds), it is rarely used in this way, and people are still used to using 60-decimal minutes, hours and 24-decimal days as the extension of seconds.

Less than a second.

centimetre

Centimeter is a unit of less than one second and more than one millisecond, that is, one hundredth of a second (0.0 1 second), or cs for short.

millisecond

Millisecond is a relatively small unit of time, which is one thousandth of a second (0.005438+0 seconds), or ms for short. The minimum exposure time of a typical camera is one millisecond. A housefly flaps its wings every three milliseconds; Mosquitoes flap their wings every 20 milliseconds; Bees flap their wings every five milliseconds. Because the moon's orbit around the earth is gradually widening, it takes two milliseconds more for it to make a circle every year. In computer science, the interval of 10 millisecond is called an instant.

microsecond

The microsecond is one millionth of a second (10 minus 6 seconds), or μs for short. During this time, light can travel 300 meters, which is about the length of three football fields, but the sound wave at sea level can only travel 1/3 mm, and the high-speed commercial stroboscope flashes about 1 microsecond at a time. A barrel of explosives began to explode about 24 microseconds after the fuse blew.

nanosecond

Nanosecond (nanosecond) is one billionth of a second (10 minus 9 seconds), also referred to as "nanosecond", and is often used as the unit of memory reading and writing speed. Light can only travel 30 centimeters (less than one step) in a nanosecond in a vacuum. It takes about 2 to 4 nanoseconds for a microprocessor of a personal computer to execute an instruction, such as adding two numbers. Another rare subatomic particle, the k meson, exists in12ns.

picosecond

Picosecond is one thousandth of a nanosecond (10 minus 12 seconds), also referred to as "picosecond". The fastest transistor runs in picoseconds. A rare subatomic particle B quark produced by high-energy accelerator can exist 1 picosecond before decay. The average existence time of hydrogen bonds between water molecules at room temperature is 3 picoseconds.

femtosecond

Femtosecond is also called femtosecond, that is, 10 minus 15 seconds, or fs for short. It is the unit of measurement for measuring the length of time. 1 femtosecond is only one thousandth of 1 second, which means 1e? 15 second or 0.00 1 picosecond (1 picosecond is, 1e? 12 second). Even at the speed of 300 thousand kilometers per second, it can only travel 0.3 micron in a femtosecond, which is less than 1% of a hair. The oscillation period of visible light is 65438 0.30 to 2.57 femtoseconds. It takes 10 to 100 femtoseconds for an atom in a molecule to complete a typical vibration. It usually takes hundreds of femtoseconds to complete a rapid chemical reaction. The interaction between light and pigments on the retina (the process of producing vision) takes about 200 femtoseconds.

One second

A second, also known as a second, millisecond and microsecond, is equivalent to 10 minus 18 seconds, or AS for short. Is the shortest measurable time, the lifetime of neutral π meson. If the age of the universe is tens of billions of years, then the negative 18 times of 10 is equivalent to 1 second. Scientists use attosecond to record instantaneous events. The researchers used a stable high-speed laser to generate light pulses with a duration of only 250 attosecond.

second

Zeptosecond, that is, 10 minus 2 1 second, or zs for short.

moment

Jiffy, in physics, is about three times the negative 24 seconds of 10.

0.25 seconds

Yoctosecond, that is, 10 minus 24 seconds, or ys for short. 0.3ys is the lifetime of W and Z bosons [1], and 23ys is the half-life of hydrogen isotopes.

planck time

Planck time is 10 minus 43 seconds, which is the shortest observable time in theory.