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
Catholic resistance to Nazi Germany oust Hitler. The Pope's Private Secretary, Robert Leiber acted as the intermediary between Pius and the Resistance. He met with Müller, who visited Rome in 1939 and 1940. Later in the war, Leiber remained the point of contact for communications from Colonel-General Ludwig Beck in the lead up to the 1944 July Plot. The Vatican considered Müller to be a representative of Colonel-General von Beck and agreed to offer the machinery for mediation. Oster, Wilhelm Canaris and Hans von Dohnányi, backed by Beck, told Müller to ask Pius to ascertain whether the British would enter negotiations with the German opposition