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Second (s)
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Second (s)

Second

The second (s) is the base unit of time in the International System of Units (SI). It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom. This precise definition allows for accurate and consistent measurements of time across various scientific and practical applications.

Origin:

The second has its origins in ancient Babylonian astronomy, where the day was divided into 24 hours, each hour into 60 minutes, and each minute into 60 seconds. The concept of dividing time into smaller units became more standardized over time, particularly in the 17th century, when the development of more accurate clocks led to a need for precise measurements of time. The modern definition, based on the cesium-133 atom, was adopted in 1967 by the International System of Units (SI) to ensure consistency and precision in timekeeping across scientific fields. The second is now universally used as the fundamental unit of time.

Second

The second (s) is the base unit of time in the International System of Units (SI). It is defined as the duration of 9,192,631,770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the cesium-133 atom. This precise definition allows for accurate and consistent measurements of time across various scientific and practical applications.

Origin:

The second has its origins in ancient Babylonian astronomy, where the day was divided into 24 hours, each hour into 60 minutes, and each minute into 60 seconds. The concept of dividing time into smaller units became more standardized over time, particularly in the 17th century, when the development of more accurate clocks led to a need for precise measurements of time. The modern definition, based on the cesium-133 atom, was adopted in 1967 by the International System of Units (SI) to ensure consistency and precision in timekeeping across scientific fields. The second is now universally used as the fundamental unit of time.

Convert Second to other time-converter units

1 Second = 1 Second

1 Second = 1000 Millisecond

1 Second = 1000000 Microsecond

1 Second = 1000000000 Nanosecond

1 Second = 1000000000000 Picosecond

1 Second = 0.0166666667 Minute

1 Second = 0.0002777778 Hour

1 Second = 0.0000115741 Day

1 Second = 0.0000016534 Week

1 Second = 3.805175038e-7 Month

1 Second = 3.168808781e-8 Year

1 Second = 3.168808781e-9 Decade

1 Second = 3.168808781e-10 Century

1 Second = 3.168808781e-11 Millennium