Fluids, flowing across the scales

Fluids are everywhere and still many of their fundamental properties are not understood. The apparent simplicity of the equations describing the motion of simple fluids contrasts with the beautiful complexity of turbulence. Fluid dynamics is clearly important to our daily life: we drive, navigate and fly inside fluids. Fluids are also responsible for the transport of mass and heat, for example in the atmosphere, while fluids flowing inside our body provide the fundamental support for cell life. In recent years computers have added to experimental equipment to help disclose the phenomenology of fluid motions. In this lecture I will try to illustrate the beauty of the physics behind fluid flows and some of the research topics that are currently keeping me busy.