Shear flow themselves. In a shearing flow, adjacent layers of fluid move parallel to each other with different speeds. Viscous fluids resist this shearing motion. For a Newtonian fluid, the stress exerted by the fluid in resistance to the shear is proportional to the strain rate or shear rate. A simple example of a shear flow is Couette flow, in which a fluid is trapped between two large parallel plates, and one plate is moved with some relative velocity to the other. Here, the strain rate is simply the relative velocity divided by the distance between the plates. Shear flows in fluids
What Is to Be Done? (novel) What Is to Be Done? (novel) What Is To Be Done? (; also translated as What Shall We Do? and literally translated as "What To Do?") is an 1863 novel written by the Russian philosopher, journalist and literary critic Nikolai Chernyshevsky. It was written in response to "Fathers and Sons" (1862) by Ivan Turgenev. The chief character is a woman, Vera Pavlovna, who escapes the control of her family and an arranged marriage to seek economic independence. The novel advocates the creation of small socialist cooperatives based on the Russian peasant commune, but oriented toward industrial production. The author promoted