Water evaporates as water vapor into the air. There are millions of domestic installations using air source heat pumps. The scale for acoustic pressure in water differs from that used for sound in air. R-407C is for use in air conditioning. It looked like a dragon flying through the air. Fuel is mixed with the compressed air and burns in the combustor. The patients died from sweltering heat worsened by the lack of air conditioning. Impulse pumps use pressure created by gas (usually air). Aircraft have transponders to assist in identifying them on air traffic control radar. It consists of army, navy and air force elements. Such factors facilitate estimation of emissions from various sources of air pollution. North Vietnam Air Force fighter ace Col. They are able to survive in the air. Diesel engines work by compressing only the air. However, it did not air on major networks.