  Following the idea that dissipation in turbulence at high Reynolds number is
by events singular in space-time and described by solutions of the inviscid
Euler equations, we draw the conclusion that in such flows scaling laws should
depend only on quantities appearing in the Euler equations. This excludes
viscosity or a turbulent length as scaling parameters and constrains
drastically possible analytical pictures of this limit. We focus on the law of
drag by Newton for a projectile moving quickly in a fluid at rest. Inspired by
the Newton's drag force law (proportional to the square of the speed of the
moving object in the limit of large Reynolds numbers), which is well verified
in experiments when the location of the detachment of the boundary layer is
defined, we propose an explicit relationship between Reynolds's stress in the
turbulent wake and quantities depending on the velocity field (averaged in time
but depending on space), in the form of an integro-differential equation for
the velocity which is solved for a Poiseuille flow in a circular pipe.
