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 ...

EVIDENCE FOR THE NUCLEAR ATOM. THE steps by which the nuclear atom was established are of such interest that it is worth while to remind ourselves of them. Rutherford was bombarding atoms by the ...

As this instability is inherently kinetic in nature, it cannot be modeled from first principles using existing fluid simulation codes. Therefore, closure models are currently used in these codes which ...