Early practice involved heating the ore in intimate contact with charcoal to provide the essential reducing atmosphere, producing a metallic sponge made up of metal and slag.
In such an atmosphere, the essential impossibility of the modern Presidency surfaces, the disjunction between the limits of any individual and the expansive powers suddenly at her command.
Hammett's "The Maltese Falcon" marked a shift in detective fiction, away from decorous country-house puzzles into a meaner, starker, bleaker kind of urban crime thriller, in which the mechanics of the crime were often less essential than the atmosphere through which the characters moved.
The ability to accurately measure the temperature and density of the solar atmosphere is essential to understanding the physical nature of Coronal loops.
Each and every character that regularly inhabits Brenda's world is essential to the atmosphere of the hour and the completeness that a fully told story must have.
In order to understand long-term changes in the Earth's atmosphere, it is essential to discuss the various atmospheric layers as a coupled system and not to regard them as separate layers.
When CO2 concentration is measured by satellites, calibration of the lower atmosphere becomes an essential procedure.
Hospital preparedness is an essential requirement in the current atmosphere of man-made and natural disasters.
With the new season, the spectacle of sadism has seeped into the background, where it emits noxious compounds essential to the atmosphere.
