Friction friction and wear in so-called self-lubricating materials. Fluid friction occurs between fluid layers that are moving relative to each other. This internal resistance to flow is named "viscosity". In everyday terms, the viscosity of a fluid is described as its "thickness". Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity. The less viscous the fluid, the greater its ease of deformation or movement. All real fluids (except superfluids) offer some resistance to shearing and therefore are viscous. For teaching and explanatory purposes it is helpful to use the concept of an inviscid fluid
From the Clouds to the Resistance father and son (Dolando Bernardini and Andrea Filippi) who are burning a fire as an annual sacrifice to the land. Taken from Cesare Pavese's novel, La Luna e i Falò After WWII, the emigrant 'The Bastard' (Mauro Monni) comes back to his village in the Langhe (northern Italy) to find that everyone he knew has died and the war has deeply changed relationships between people. From the Clouds to the Resistance From the Clouds to the Resistance (, literally "From the Cloud to the Resistance") is a 1979 Italian drama film directed by Danièle Huillet and Jean-Marie Straub. It competed