Small and Large: Scaling
There are a few matters one needs to keep in mind when miniature technical systems are designed. Many children imagine worlds on the top of a pin. Linear dimensions shrink slower than surfaces and surfaces shrink slower than volumes. So, friction associated with surfaces becomes relatively more important than masses: weight and inertia tend to he negligible in the microworld. But also stiffness, electric forces, magnetic forces, adhesive forces, the character of convection, the importance of boundary layers, surface finish, characteristic times associated with diffusion and resonance all scale in their own way.
KeywordsElectric Force Electro Mechanical System Capacitor Plate Constant Energy Density Field Energy Density
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