from The Century Dictionary.
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In this sense, the hydrodynamical challenage of yachting design is quite different to that faced by an automobile aerodynamicst, who must study only the effect of one fluid, the air.
Hannes Alfvén demonstrated in the 1940s that a new type of collective motion, called "magneto-hydrodynamical waves" can arise in such systems.
In a first, tentative step, we thought mostly of hydrodynamical applications, using our results as tools for numerical computation.
In particular, Alfvén discovered the existence of hitherto unsuspected magneto-hydrodynamical waves, the so-called
One can show that a stream of gas becomes unstable against such a fragmentation when the length of the stream exceeds a certain num - ber whose value can be derived from hydrodynamical theory.
In the hydrodynamical experiments of Professor Bjerknes all the phenomena of magnetic induction can be reproduced directly and perfectly, but the phenomena of magnetic action are not so exactly reproduced, that is to say, they are subject to a sort of inversion.
A theory, which Sir W. Thomson has founded on Helmholtz's splendid hydrodynamical theorems, seeks for the properties of molecules in the ring vortices of a uniform, frictionless, incompressible fluid.
I claim that this generic lethal flaw of the hydrodynamical model should be comprehensible to every undergraduate student who has registered for the introductory course of quantum mechanics within a few minutes after the sixth class.
Wallstrom to show that the hydrodynamical model is wrong.
I could also recommend you some of Dmitry's lectures on de Sitter space and inflation from a hydrodynamical viewpoint.