Foaming agent Foaming agent A foaming agent is a material that facilitates formation of foam such as a surfactant or a blowing agent. A surfactant, when present in small amounts, reduces surface tension of a liquid (reduces the work needed to create the foam) or increases its colloidal stability by inhibiting coalescence of bubbles. A blowing agent is a gas that forms the gaseous part of the foam. Sodium laureth sulfate, or sodium lauryl ether sulfate (SLES), is a detergent and surfactant found in many personal care products (soaps, shampoos, toothpastes, etc.). It is an inexpensive and effective foamer. Sodium lauryl sulfate
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