Recent investigations have made the kinetic theory of fluids one of the most vital branches of theoretical physics. Experimental progress has gone hand in hand with the development of theory.

THE difficulty of reconciling line spectra with the kinetic theory of gases, has been referred to by Prof. Fitzgerald (NATURE, January 3, p. 221). The following considerations show that it is ...

The exhibition project of Francisco Infante, one of the pioneers of kinetic art in the world, is on display at the Tretyakov Gallery in Moscow, The exhibition entitled 'Francisco Infante. Metaphors of ...