The long reed is a traditional and now largely obsolete unit of length historically used in land measurement and surveying, with its exact value varying by region and era.

What does the classical electron radius represent?

It is a derived length scale representing a characteristic scattering length in particle physics, not the physical size of an electron.

How to Convert from Long reed to Electron radius (classical)?

Q: Why convert from long reed to electron radius (classical)?

This conversion links historical length measurements to a fundamental physical scale, useful in physics education, research, and when interpreting old measurement records.

This tool converts measurements from the historical long reed unit to the classical electron radius, providing a bridge between traditional land distance units and fundamental physical length scales.

Long reed

Electron radius (classical)

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Long reed to Electron radius (classical) Conversion Table

Long reed	Electron radius (classical)

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Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

Long reed to Electron radius (classical) Conversion Table
Long reed	Electron radius (classical)

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What Is This Tool?

This converter transforms length values measured in long reeds—a traditional and now-obsolete unit used in historical land and surveying contexts—into the classical electron radius, a fundamental physical length scale important in particle physics and electromagnetic scattering.

How to Use This Tool?

Enter the length value in long reeds that you wish to convert
Select the conversion direction from long reed to electron radius (classical)
View the result displayed in electron radius units based on the conversion formula
Use the converted value for educational, research, or analytical purposes

Key Features

Converts from the historical long reed length unit to the classical electron radius scale
Provides a direct link between traditional measurement units and fundamental physical constants
Includes use cases relevant to historical metrology and advanced physics fields
Simple formula-based conversion with a fixed conversion factor

Examples

2 Long reeds equal 2 × 1135722888044100 = 2271445776088200 electron radius (classical)
0.5 Long reed equals 0.5 × 1135722888044100 = 567861444022050 electron radius (classical)

Common Use Cases

Interpreting and converting distances in historical land deeds and old maps
Translating antiquated surveying measurements for property restoration
Calculations in physics involving Thomson scattering and electromagnetic interactions
Bridging traditional units with microscopic physical scales in educational contexts

Tips & Best Practices

Consider the historical and regional variability of the long reed when interpreting results
Use this conversion mainly for symbolic, educational, or research-oriented purposes
Verify historical measurement context to reduce approximation errors
Combine with physics formulas involving classical electron radius for relevant calculations

Limitations

The length of the long reed differed by locality and period, so conversions can be approximate without exact historical context
The classical electron radius is a theoretical quantity, not an actual physical dimension
Applications of this conversion are mainly symbolic or educational rather than practical for direct measurement

Frequently Asked Questions

What is a long reed?: The long reed is a traditional and now largely obsolete unit of length historically used in land measurement and surveying, with its exact value varying by region and era.
What does the classical electron radius represent?: It is a derived length scale representing a characteristic scattering length in particle physics, not the physical size of an electron.
Why convert from long reed to electron radius (classical)?: This conversion links historical length measurements to a fundamental physical scale, useful in physics education, research, and when interpreting old measurement records.

Key Terminology

Long reed: A traditional, now obsolete, unit of length used historically for land measurements; its value varies depending on historical and regional context.
Classical electron radius: A derived length scale in physics representing the characteristic scattering length related to the electron, defined by classical electromagnetic theory.

Quick Knowledge Check

What is the classical electron radius primarily used for?

Measuring the physical size of electrons

Providing a characteristic scattering length in physics

Measuring distances in land surveys

Why might conversions from long reed be approximate?

Because the long reed is a theoretical construct

Because the long reed’s exact length varied historically by location and period

Because it is a modern SI unit

What is the conversion rate from 1 long reed to electron radius (classical)?

1 long reed equals 1135722888044100 electron radius (classical)

1 long reed equals 0.5 electron radius (classical)

1 long reed equals 1000 electron radius (classical)

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