Inert gas asphyxiation primary method of carrying out executions. In March 2018, Alabama became the third state (along with Oklahoma and Mississippi), to authorize the use of nitrogen asphyxiation as a method of execution. Inert gas asphyxiation Inert gas asphyxiation is a form of asphyxiation which results from breathing a physiologically inert gas in the absence of oxygen, or a low amount of oxygen, rather than atmospheric air (which is largely composed of nitrogen and oxygen). Examples of physiologically inert gases, which have caused accidental or deliberate death by this mechanism, are argon, helium, nitrogen and methane. The term "physiologically inert" is used
Incandescent light bulb have an electrical contact at either end. Miniature lamps may have a wedge base and wire contacts, and some automotive and special purpose lamps have screw terminals for connection to wires. Contacts in the lamp socket allow the electric current to pass through the base to the filament. Power ratings for incandescent light bulbs range from about 0.1 watt to about 10,000 watts. The glass bulb of a general service lamp can reach temperatures between . Lamps intended for high power operation or used for heating purposes will have envelopes made of hard glass or fused quartz. Most modern bulbs