What is Gas chamber?
A '''gas chamber''' is an airtight room used for killing people or animals with [[poison gas]]. The people or animals are put into the gas chamber, the door is sealed airtight from the outside, and a gas, such as [[carbon monoxide]] or [[hydrogen cyanide]], is put into the chamber. The victims die from [[Inhalation|inhaling]] the poisonous gas. == In the United States == [[File:Santa Fe gas chamber.jpg|thumb|Modern gas chamber, in a US prison.]] In the [[United States]], [[prisons]] have used gas chambers to [[Execution|execute]] prisoners who have been sentenced to [[death penalty|death]]. The first person in the United States to be executed in a gas chamber was Gee Jon, in a prison in [[Nevada]], in 1924. The [[government]] of Nevada did not want to use an [[electric chair]], and thought [[Hanging (death)|hanging]] was cruel and inhumane.<ref name=tb>{{cite book |last1=Bohm |first1=Robert M. |date=August 17, 2011 |title=DeathQuest: An Introduction to the Theory and Practice of Capital Punishment in the United States |edition=4th |url=https://archive.org/details/deathquestintrod4thebohm|location= |publisher=Routledge |page= |isbn=978-1437734935}}</ref> The gas chamber is usually a small chamber, which is made air-tight with a door (typically with [[rubber]] strips around) into which the prisoner is escorted and either placed or fastened to a chair with straps, and left inside. After this, the gas is inserted either through a [[hose]] or a [[wikt:pellet|pellet]] is dropped into a [[solution]] which [[Chemical reaction|combined produces]] deadly gas, and the person(s) is [[Asphyxia|asphyxiated]] within minutes. In the United States, one or two people maximum were executed at a time, although recently it has become extremely uncommon. After [[California]] stopped using it in favour of [[lethal injection]], it became nearly redundant. But it is still possible in several states, typically as a second method, in case there would not be drugs for an injection to be performed, or if the prisoner prefers to be execu