Second Converter
Convert Second to Shake and more • 33 conversions
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Unit Explanations
Second of Arc"
Source UnitA second of arc, also known as an arcsecond, is a unit of angular measurement that is equal to 1/3600 of a degree or 1/60 of an arcminute. It is used primarily in fields that require precise angular measurement, such as astronomy, navigation, and mapping. An arcsecond is a small unit, reflecting the requirement for high precision in measurements of celestial objects and angles on the Earth's surface. The notation for a second of arc is usually represented by a double prime symbol ("), following the degree and arcminute symbols.
Current Use
Today, the second of arc is indispensable in astronomy for measuring the positions and movements of celestial objects with high precision. It is also used in geodesy and cartography to define the precise angular relationships between points on the Earth. Additionally, arcseconds are employed in the calibration of telescopes and other optical instruments where small angular measurements are critical.
Fun Fact
An arcsecond is roughly the angle subtended by a U.S. dime at a distance of 2.4 miles.
Shakeshake
Target UnitThe shake is a non-SI unit of time defined as 10 nanoseconds (10^-8 seconds). It is primarily used in nuclear physics and related fields to measure very short time intervals. The term 'shake' originated from the phrase 'a shake of a lamb's tail,' highlighting its ephemeral nature. This unit is applied to phenomena occurring at extremely high speeds, such as reactions in particle physics, where conventional units like seconds may be impractical due to their larger magnitude. Thus, the shake serves as a more precise measurement for these rapid events.
Current Use
Today, the shake is primarily used in fields such as nuclear physics, high-energy physics, and astrophysics. Its use is essential in contexts where events occur within nanoseconds, such as the decay of particles or the timing of events in particle accelerators. It allows physicists to communicate time intervals succinctly when discussing high-speed phenomena.
Fun Fact
The shake is so short that it is not typically encountered in everyday life, making it a unit that is mostly confined to scientific discussions.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Second of Arc
angle • Non-SI
Definition
A second of arc, also known as an arcsecond, is a unit of angular measurement that is equal to 1/3600 of a degree or 1/60 of an arcminute. It is used primarily in fields that require precise angular measurement, such as astronomy, navigation, and mapping. An arcsecond is a small unit, reflecting the requirement for high precision in measurements of celestial objects and angles on the Earth's surface. The notation for a second of arc is usually represented by a double prime symbol ("), following the degree and arcminute symbols.
History & Origin
The concept of dividing a circle into degrees and further into minutes and seconds dates back to ancient Babylonian astronomers, who used a sexagesimal (base-60) number system. The division of a degree into 60 parts, known as minutes, and each minute into 60 parts, known as seconds, allowed for more precise measurement and calculation of angles in the study of celestial bodies. This system became widespread with the work of Greek and later Islamic scholars, who advanced astronomical knowledge and navigation.
Etymology: The term 'second' in this context comes from the Latin 'secunda', meaning 'second division' or 'second order', referring to its place in the hierarchical division of degrees.
Current Use
Today, the second of arc is indispensable in astronomy for measuring the positions and movements of celestial objects with high precision. It is also used in geodesy and cartography to define the precise angular relationships between points on the Earth. Additionally, arcseconds are employed in the calibration of telescopes and other optical instruments where small angular measurements are critical.
💡 Fun Facts
- •An arcsecond is roughly the angle subtended by a U.S. dime at a distance of 2.4 miles.
- •The Hubble Space Telescope can resolve images with an angular resolution of about 0.05 arcseconds.
- •In one parsec, which is a unit of astronomical distance, a star would have a parallax angle of one arcsecond.
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Shake
time • Non-SI
Definition
The shake is a non-SI unit of time defined as 10 nanoseconds (10^-8 seconds). It is primarily used in nuclear physics and related fields to measure very short time intervals. The term 'shake' originated from the phrase 'a shake of a lamb's tail,' highlighting its ephemeral nature. This unit is applied to phenomena occurring at extremely high speeds, such as reactions in particle physics, where conventional units like seconds may be impractical due to their larger magnitude. Thus, the shake serves as a more precise measurement for these rapid events.
History & Origin
The concept of the shake dates back to the mid-20th century, particularly during the development of nuclear physics. It was introduced as a practical unit for measuring short time intervals that were frequently encountered in experimental physics, especially in the context of radiation and particle interactions.
Etymology: The term 'shake' is derived from the colloquial expression 'a shake of a lamb's tail,' which signifies a brief moment in time.
Current Use
Today, the shake is primarily used in fields such as nuclear physics, high-energy physics, and astrophysics. Its use is essential in contexts where events occur within nanoseconds, such as the decay of particles or the timing of events in particle accelerators. It allows physicists to communicate time intervals succinctly when discussing high-speed phenomena.
💡 Fun Facts
- •The shake is so short that it is not typically encountered in everyday life, making it a unit that is mostly confined to scientific discussions.
- •The term 'shake' became popular among physicists as a whimsical way to express extremely short time intervals, highlighting the creativity in scientific nomenclature.
- •In relation to everyday measurements, a shake is 0.00001% of a second, illustrating just how instantaneous this unit of time is.
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