Convert pound-force inch to Rydberg constant
Please provide values below to convert pound-force inch [lbf*in] to Rydberg constant [Ry], or Convert Rydberg constant to pound-force inch.
How to Convert Pound-Force Inch to Rydberg Constant
1 lbf*in = 5.1830897022906e+16 Ry
Example: convert 15 lbf*in to Ry:
15 lbf*in = 15 × 5.1830897022906e+16 Ry = 7.77463455343591e+17 Ry
Pound-Force Inch to Rydberg Constant Conversion Table
| pound-force inch | Rydberg constant |
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Pound-Force Inch
Pound-force inch (lbf·in) is a unit of torque representing the torque resulting from a one-pound-force applied at a perpendicular distance of one inch from the pivot point.
History/Origin
The pound-force inch has been used historically in engineering and mechanical contexts to quantify torque, especially in the United States, based on the imperial system of units. It originated from the need to measure rotational force in machinery and automotive applications.
Current Use
Today, pound-force inch is still used in engineering, automotive, and mechanical fields to specify torque values, particularly in the United States. It is often converted to SI units like newton-meters for international standardization.
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.