Good air quality (0-50) Primary pollutant PM2.5 9.1 μg/m³ Pressure is the weight of the air in the atmosphere. It is normalized to the ... air needs to be cooled for moisture to condense, for example, ...

Researchers have grown diamonds under conditions of 1 atmosphere pressure and at 1025 degrees Celsius using a liquid metal alloy composed of gallium, iron, nickel, and silicon, thus breaking the ...