Posts Tagged ‘coating’
Particle size matters when coffee dries up
U. PENNSYLVANIA (US) — The “coffee-ring effect” is why some liquids leave behind a ring-shaped stain when they evaporate. Scientists reveal why the shape of the particles matters. Continue…
Wednesday, January 23, 2013 12:37 - 0 Comments
Science & Technology - Jan 17, 2013 13:12 - 0 Comments
Coating of air makes liquid bounce off fabric
U. MICHIGAN (US) — A nanoscale coating that’s at least 95 percent air repels liquid and causes it to recoil from treated surfaces. (more…)
