���Vamoebas, Bacterial colonies, Molecular motors, Aquatic plants, Pneumatic tubes, Electromagnetic waves, Micro-robots, Cytoplasmic filaments, Fibrous structures, Micro-electronic components, Nano-scaled gears, Walled cells, Bioluminescent organisms, Fractured crystals, Sub-cellular vesicles, Mechanical pistons, Turbine blades, Nano-wires, Bio-films, Micro-scale springs, Molecular membranes