Downtown, there was a film; uptown, a school of fish-shaped helium balloons, attracted by currents of warm air, seemed to follow visitors around.
Downtown, there was a film; uptown, a school of fish-shaped helium balloons, attracted by currents of warm air, seemed to follow visitors around.
The basic method of soaring, called thermaling, is to find and use rising currents of warm air, such as those above a sunlit field of ripened grain, to lift the glider.
The large, bald-headed birds float on rising currents of warm air known as thermals, which they use to soar high into the sky without beating their wings, thereby saving energy.
A warm front is the boundary between a mass of warm air and a retreating mass of cold air.
Instability can also occur when layers of cool air are warmed from below after they move over a warm ocean surface or over layers of warm air.
Open-air "rooms" were framed by giant video projection screens and curtains of warm air.
For example, the ascent of warm air drives the process, but as this air rises, other air must descend (the system circulates).
He responded to external warming, which included nursing in a warm environment, use of warm air blanket and warm fluids.
