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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Pure and applied geophysics 28 (1954), S. 190-198 
    ISSN: 1420-9136
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Description / Table of Contents: Summary Supposing the Earth sorrounded by a veil of an incompressible perfect fluid rotationally moved by a point shaped double vortex, the Author calculates the total kinetic energy of the system as a function of the Eulerian angles θ, ϕ, ψ which expres the Earth motion referred to an inertial tern, and of the angles θ0, ψ0 for the vortex motion referred to the Earth. He determines the above said angles as temporal functions by means of the equations of Lagrange. It results that the vortex motion is determined by θ0= const., $$\dot \psi _0 = const.$$ and that its influence on the rate of rotation of the Earth is negligeable.
    Notes: Riassunto Si suppone la Terra avvolta da un velo di un fluido perfetto incomprimibile messo in rotazione da un vortice doppio puntiforme. Si calcola l'energia cinetica totale della Terra e del fluido in funzione degli angoli di Eulero θ, ϕ, ψ, che esprimono il moto della Terra rispetto a una terna inerziale, e degli angoli θ0, ψ0 esprimenti il moto del vortice rispetto alla Terra. Si determinano i predetti angoli in funzione del tempo mediante le equazioni di Lagrange; risulta che il moto del vortice è caratterizzato da θ0= const., $$\dot \psi _0 = const.$$ e che la sua influenza sulla polodia è trascurabile.
    Type of Medium: Electronic Resource
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