adhesion

Recently, scientists found that in the Earth's crust there is a layer of rock with high adhesion and very hard, this may be the cause of the heat in the Earth can not escape out.

Engineers have developed nanostructured materials that don't allow water droplets to stick before they freeze.

Cornell University, New York, has just invented a device that is about the size of a phone, taking advantage of the surface tension of water to help people walk on walls like