This is manifested by the convection currents
of the granules  and the differential solar rotation observed by Carrington .
The ground heats up, producing convection currents
, sucking every drop of moisture from the land and whips the air's molecules into a frenzy of activity, kicking up stinking winds and horrid humidity.
Physically this can be justified, because in the process of externally cooling of the plate, the free convection currents
travel away from the plate.
The convection currents
inside the liquid and at the solid liquid interface are ignored;
The effects of the permeability parameter (K) and free convection currents
(both Gr and Gm) on the velocity field are shown in Fig.
Before their data streams of convection currents
and computer modelling of pressure differentials, weather forecasters would present their prognostications in far more dogmatic fashion.
Scientists think that convection currents
cause tectonic plates to move.
Indeed, convection currents
in the mantle are responsible for most of the volcanic and tectonic processes that we see at Earth's surface.
He thumbs a button and another particle comes into being, tracing helical convection currents
through the mantle as the perspective soars to a point several kilometers above the North Pole.
Then somebody at the table next to you lights up a cigarette and the convection currents
happen to be flowing in your direction.
This primary structure carries purlins and rafters in the normal way, with the rafters strutted at the same angle as the struts on the tied portals, creating in effect an inverted ridge that acts as a continuous lantern because, above it, the real ridge is defined by a motorized greenhouse glazing system that can be thrown open on hot days to encourage cooling convection currents
Environmental factors that can contribute to heat stress besides high ambient temperature are low convection currents
, high humidity, low evaporative loss, and high insulation levels around the body.