These two sections later became the Security Service (MI5) and the Secret Intelligence Service (MI6). Although Kell had only modest resources at his disposal-by April 1914, he only had fourteen staff-he was able to achieve considerable success against German espionage.I5 and MI6 officers and SAS troops often work together (eg MI5 surveillance officers might brief SAS troops on targets, or SAS soldiers may escort intelligence officers operating in high threat environments), and some SAS may be attached to MI5/ MI6 for particular missions.
What is GAS MANTLE? A small dome-shaped structure of knitted or woven ramie or rayon, impregnated with a solution of the nitrates of cerium and thorium, then dried, and the textile fabric burned off. Also incandescent mantle.
Ideal Gas Definition. An ideal gas is a gas whose pressure P, volume V, and temperature T are related by the ideal gas law. PV = nRT, where n is the number of moles of the gas and R is the ideal gas constant. Ideal gases are defined as having molecules with negligible size with an average molar kinetic energy dependent only on temperature. At low temperature, most gases behave enough like ideal gases that the ideal gas law can be applied to them.