Business / Real Estate / Liquefaction: A phenomenon which occurs during an earthquake whereby the ground/soil turns into a highly unstable, jelly-like substance.

Coal Liquefaction

Science / Geology / Coal Liquefaction: The process of converting solid coal into a liquid fuel such as synthetic crude oil or methanol. MORE

Oxygen (O)

Science / Periodic Table of Elements / Oxygen (O): Atomic number: 8, Atomic mass: 15.999 g.mol -1, Electronegativity: 3.5, Density: 1.429 kg/m3 at 20°C, Melting point: -219 °C, Boiling point: -183 °C, Vanderwaals radius: 0.074 nm, Ionic radius: 0.1 MORE


Business / Agriculture / Nitrogen: An element found in the air and in all plant and animal tissues. For many crops, nitrogen fertilizer is essential for economic yields. However, nitrogen can also be a pollutant when nitrogen compounds MORE