Convert pound-force foot to Rydberg constant
Please provide values below to convert pound-force foot [lbf*ft] to Rydberg constant [Ry], or Convert Rydberg constant to pound-force foot.
How to Convert Pound-Force Foot to Rydberg Constant
1 lbf*ft = 6.21970759687452e+17 Ry
Example: convert 15 lbf*ft to Ry:
15 lbf*ft = 15 × 6.21970759687452e+17 Ry = 9.32956139531178e+18 Ry
Pound-Force Foot to Rydberg Constant Conversion Table
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Pound-Force Foot
The pound-force foot (lbf·ft) is a unit of torque or moment of force, representing the force of one pound-force applied at a perpendicular distance of one foot from the pivot point.
History/Origin
The pound-force foot originated from the Imperial system of units, primarily used in the United States, to quantify torque in mechanical and engineering contexts before the widespread adoption of the SI system.
Current Use
Today, the pound-force foot is still used in certain engineering fields, particularly in the United States, to measure torque in automotive, mechanical, and structural applications, although the SI unit newton meter is more common internationally.
Rydberg Constant
The Rydberg constant (Ry) is a physical constant that represents the highest wavenumber (inverse wavelength) of any photon in the hydrogen atom's emission spectrum, used to calculate spectral lines.
History/Origin
Named after the Swedish physicist Johannes Rydberg, the Rydberg constant was introduced in the late 19th century as part of Rydberg's formula to describe the spectral lines of hydrogen, significantly advancing atomic physics.
Current Use
The Rydberg constant is used in quantum physics and spectroscopy to determine energy levels of hydrogen and other hydrogen-like atoms, and in calculations involving atomic spectra and quantum mechanics.