TECHNOLOGY FOCUS - BIOLOGY - Preferred Components: The marine contaminants include mussels, sea squirts, barnacles, tubeworm, tubeworm larva, and/or diatom. The marine environment includes salt and sweet water.    TECHNOLOGY FOCUS - ELECTRONICS - Preferred Components: The optical device is in a mobile communication device, fingerprint reader, automatic transfer machine, goggle, camera, infrared imaging system. The optical device is a lens, a touch screen, or a window.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The substrate comprises metal, sapphire, glass, carbon in different form, or ceramic. The chemical functionalizing layer comprises a fluorinated compound. The porous material includes a solid substrate that is selected to have following properties: electrical conductive, non-conductive, magnetic, non-magnetic, elastic, non-elastic, light-sensitive, non-light-sensitive, temperature-sensitive, or non-temperature sensitive. The substrate is a flat substrate, a round substrate, a cylindrical substrate, or a geometrically complex substrate. The slippery surface is formed over a flat substrate, a round substrate, a cylindrical substrate, or a geometrically complex substrate. In the method (p1), the roughened surface is provided on a surface of a flow channel, on a surface of an optical component, on a surface of a sign or a commercial graphic, on a surface of a building material, on a surface of a cooling element, on a surface of a heat exchanger, on a surface of a wind mill, on a surface of a turbine, on a surface of a solar cell on a surface of an avionic device, on a surface of a marine vessel, or on a surface of an underwater device, on a surface of a fabric. The flow path is a microfluidic channel, or pipe.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Article: The article satisfies specific conditions as given in the specification. The article further comprises a reservoir comprising an amount of lubricating liquid in fluid communication with the lubricating layer. The article having low adhesion surface comprises: a solid substrate having a roughened surface; a lubricating fluid that adheres to and preferentially wets the substrate to form a liquid upper surface, the liquid upper surface configured and arranged to contact a foreign material of interest, where the lubricating fluid is immiscible with foreign material, and the foreign material exhibits little or no adhesion to the article.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The lubricating liquid is selected to be chemically inert to the foreign material. The foreign material is a fluid or solid. The lubricating liquid is a perfluorocarbon oil, or a hydrophobic oil. The fluid is a non-polar fluid and/or polar fluid (preferably water, oil, or other complex fluids). The contaminant includes dirt, smog, oil, fecal matter, fingerprint, skin debris, fog, frost, spray paints and/or food. The lubricating liquid is a pure liquid, solution, or a complex fluids consist of a liquid phase and a solid phase.    TECHNOLOGY FOCUS - POLYMERS - Preferred Method: The step of providing and introducing are carried out to satisfy specific conditions as given in the specification. The method (p1) further involves providing a reservoir comprising an amount of lubricating liquid. The method (m1), (m3) and (m5) further involves providing additional lubricating liquid to replenish any loss of the lubricating liquid during operation. The method (m2) further involves providing an air flow to the cooling coil during or after the heating; and providing additional lubricating liquid to replenish any loss of the lubricating liquid during operation. In the method (m3), the walls enclose the perimeter of the building and extend from the ground of the building to a height that is several times larger than the size of the pest. The method (m4) further involves providing additional lubricating liquid to replenish any loss of the lubricating liquid during use of the article. The method (m6) further involves: providing additional lubricating liquid to replenish any loss of the lubricating liquid during use. Preferred Components: The roughened surface comprises raised features having at least one dimension of the scale of nanometers to micrometers. The optical refractive indices of the substrate and the lubricating liquid are substantially similar. The substrate comprises a porous material or a polymer. The roughened surface comprises fibers, particles, electrochemically deposited polymer, sand blasted surface, wet or dry etched surface and chemical functionalizing layer. EXAMPLE - No suitable example given.