Convert Electron radius (classical) to furlong (US survey) Online | Free Length Converter

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Classical Electron Radius


The classical electron radius is a theoretical length scale associated with the electron, derived from classical electromagnetism. It represents the size of a hypothetical sphere where the electron’s electrostatic energy equals its rest mass energy.



  • Its value is approximately 2.818 × 10⁻¹⁵ meters (about 2.8 femtometers).



  • Calculated using fundamental constants: the electron charge, mass, and the speed of light.



  • It is not the actual physical size of the electron (which is considered point-like in quantum mechanics), but a useful scale in classical physics.



  • Used in scattering theory and classical electron models.



Key facts:



  • Classical electron radius ≈ 2.818 × 10⁻¹⁵ m



  • Represents an electromagnetic length scale, not a physical size



  • Important in classical models of electron behavior



This radius helps bridge classical and quantum views of particle physics.


Furlong (US Survey)


The furlong (US survey) is a traditional unit of distance used in U.S. land surveying, defined as 1/8 of a U.S. survey mile, or exactly 660 U.S. survey feet. Since one U.S. survey foot equals approximately 0.3048006096 meters, the US survey furlong is about 201.1684 meters long.


While the difference between the US survey furlong and the international (standard) furlong is extremely small (just a few micrometers), it was significant in precise land measurements, particularly in legal and cadastral surveying contexts.


Key Conversions:



  • 1 US survey furlong = 660 US survey feet



  • 1 US survey furlong ≈ 220 yards



  • 1 US survey furlong ≈ 201.1684 meters



  • 8 US survey furlongs = 1 US survey mile



As of 2023, the U.S. has officially deprecated the use of the survey foot (and by extension the survey furlong) in favor of the international foot, but it may still appear in historical and legal documents.



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Convert Electron radius (classical) to Other Length Units

🔄 Electron radius (classical) to centimeter
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🔄 Electron radius (classical) to nautical league (int.)
🔄 Electron radius (classical) to league (statute)
🔄 Electron radius (classical) to nautical mile (UK)
🔄 Electron radius (classical) to nautical mile (international)
🔄 Electron radius (classical) to mile (statute)
🔄 Electron radius (classical) to mile (US survey)
🔄 Electron radius (classical) to mile (Roman)
🔄 Electron radius (classical) to kiloyard
🔄 Electron radius (classical) to furlong
🔄 Electron radius (classical) to furlong (US survey)
🔄 Electron radius (classical) to chain
🔄 Electron radius (classical) to chain (US survey)
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🔄 Electron radius (classical) to rod (US survey)
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🔄 Electron radius (classical) to cubit (UK)
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🔄 Electron radius (classical) to finger (cloth)
🔄 Electron radius (classical) to nail (cloth)
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🔄 Electron radius (classical) to microinch
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🔄 Electron radius (classical) to caliber
🔄 Electron radius (classical) to centiinch
🔄 Electron radius (classical) to ken
🔄 Electron radius (classical) to Russian archin
🔄 Electron radius (classical) to Roman actus
🔄 Electron radius (classical) to vara de tarea
🔄 Electron radius (classical) to vara conuquera
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🔄 Electron radius (classical) to cubit (Greek)
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