
Negative Viscosity
In most fluid systems differences in velocity are obliterated by positive viscosity. In some rotating systems, however, nonuniform flows can be maintained by negative viscous effects due to eddies

Negative Viscosity
In most fluid systems differences in velocity are obliterated by positive viscosity. In some rotating systems, however, nonuniform flows can be maintained by negative viscous effects due to eddies

The Circulation of the Sun's Atmosphere
A new hypothesis may explain how the sun can rotate faster at its equator than it does elsewhere. Analysis of sunspot movements has provided a clue to this 100-year-old mystery

The General Circulation of the Atmosphere
Concerning a new and surprising answer to one of the central questions of meteorology: What forces give rise to the great westerly and easterly wind systems that prevail on the earth?