Surface tension effects of surface tension can be seen with ordinary water: Surface tension is visible in other common phenomena, especially when surfactants are used to decrease it: Surface tension, represented by the symbol "γ" (alternatively "σ" or "T"), is measured in force per unit length. Its SI unit is newton per meter but the cgs unit of dyne per centimeter is also used. For example, Surface tension can be defined in terms of force or energy. In terms of force: surface tension of a liquid is the force per unit length. In the illustration on the right, the rectangular frame, composed
Surface tension-driven nanoelectromechanical relaxation oscillator Surface tension-driven nanoelectromechanical relaxation oscillator This page is a fragment, additional input from experts is wanted to fix any errors or add any relevant content to the article. A surface tension-driven nanoelectromechanical relaxation oscillator, or NEMRO for short, is currently the world's smallest motor. Constructed from a 200-nanometer-long nanotube, a pair of liquid indium spheres, one measuring 5 nanometers across and the other 15 nanometers across. Electricity flows across the nanotube from the large sphere to the smaller sphere, causing the spheres to shuffle atoms between the large sphere and the small sphere, making the larger sphere shrink and the