�_Muscle fibers, Mechanical gears, Electronic capacitors, Circuit boards, Wires (copper), Bacterial colonies, Vacuum tubes, Fibrous cartilage, Surgical needles, Molecular chains, Laboratory equi`ment, Biological microscopes, Nanoparticles, Microelectromechanical systems (MEMS), Synthetic polymers, Electrical transformers, Tissue cultures,`Bioreactors, Optical fibers, Fibrous structures (e.g., tendons, lifaments), Mechanical pistons, Electronic switches, Cooling systems, Turbines (microscale),`Molecular motors, Diagnostic equipme�t