Mechanics of gelation distinction between a sol (solution) and a gel therefore appears to be understood in a manner analogous to the practical distinction between the elastic and plastic deformation ranges of a metal. The distinction lies in the ability to respond to an applied shear force via macroscopic viscous flow. In a dynamic sense, the response of a gel to an alternating force (oscillation or vibration) will depend upon the period or frequency of vibration. As indicated here, even most simple liquids will exhibit some elastic response at shear rates or frequencies exceeding 5 x 10 cycles per second. Experiments on such
The Ghost of Vermeer of Delft Which Can Be Used As a Table The Ghost of Vermeer of Delft Which Can Be Used As a Table The Ghost of Vermeer of Delft Which Can Be Used As a Table is a small Surrealist oil painting by Salvador Dalí. Its full title is The Ghost of Vermeer of Delft Which Can Be Used as a Table (Phenomenologic Theory of Furniture-Nutrition). It makes reference to "The Art of Painting" by Johannes Vermeer, a famous seventeenth-century work in which a painter, thought to be a self-portrait of Vermeer, is depicted with his back to us, in distinctive costume. It is one of a number of paintings