Top 10 facts about the world. Compressive strength is a measure of a materialâs ability to withstand compressive forces, where it is squeezed laterally.Materials testing can determine the compressive strength of a material in optimal conditions, using a specialized device that applies known pressure loads to materials of interest.op 10 facts about the world. Compressive strength is a measure of a materialâs ability to withstand compressive forces, where it is squeezed laterally.
VX gas is one of the most dangerous chemicals created by man. VX gas is an aerosoled chemical warfare agent derived from the oil-based VX. In the film The Rock, it was that green liquid that the terrorists threatened San Francisco Bay with.
Diving with non-air gas mixtures: Nitrox, Heliox, Trimix what is nitrox? Nitrox is a gas mixture of oxygen and nitrogen, but with a higher oxygen percentage than found in ordinary air. As a result of its higher oxygen concentration, the percentage of nitrogen in nitrox is always lower than in air. There are two standard mixtures of Nitrox recognized by NOAA for diving: Nitrox I and Nitrox II (see Table 1).