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Dynamic duos: the building blocks of dimensional mechanics
Marc A Fardin1,2, Mathieu Hautefeuille3, Vivek Sharma2,4
1CNRS, Institut Jacques Monod, Université de Paris, F-75013 Paris, France. marc-antoine.fardin@ijm.fr.
This study introduces dimensional mechanics, organizing mechanical quantities by their dimensions of length, time, and mass. It reveals how pairs of these quantities govern physical phenomena across scales, from atomic to cosmic.
Area of Science:
- Physics
- Dimensional Analysis
- Mechanics
Background:
- Mechanics historically evolved from geometry to include time and mass.
- Standard mechanical quantities possess dimensions of the form [M^x L^y T^z], where x, y, and z are integers.
Purpose of the Study:
- To demonstrate a novel arrangement of mechanical quantities based on their dimensional structure.
- To introduce "dimensional mechanics" as a method for understanding physical processes.
Main Methods:
- Organizing mechanical quantities into a table based on their mass and length dimensions.
- Analyzing ratios of quantities within rows and columns to derive characteristic lengths and times.
- Examining duos of mechanical quantities (impelling vs. impeding motion) to understand dynamics.
Main Results:
- A table is presented where quantities are arranged by dimensions, facilitating the derivation of characteristic lengths and times.
- Interactions between pairs of mechanical quantities (e.g., force and mass) explain diverse phenomena.
- Examples span from planetary motion and fluid dynamics to cell mechanics and wave phenomena.
Conclusions:
- Dimensional analysis, through the framework of dimensional mechanics, offers a powerful synthesis for understanding complex physical and biological processes.
- The interplay of two mechanical quantities provides fundamental insights, with potential for more complex interactions involving multiple quantities.
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