[Naked Crook]

http://halo.wikia.com/wiki/Plasma_Grenades When primed, the Type-1 plasma grenade emits a blue plasma gas;this emission is light so that the grenade does not stick to the person priming the grenade. When thrown, the plasma gas begins to intensify enough that if it comes into contact with a vehicle or infantry, the plasma will start to burn into the surface and adhere to it until detonation. The grenade contains some type of internal mechanism that allows it to distinguish between targets and background-it will stick to a soldier or active vehicle, but not to a tree or wall. Once something has been stuck with a grenade, their is no normal way to remove it, only devices like an advanced electromagnetic shield can temporary disable the internal mechanism, however this technology is rare and only issued to special forces of both the UNSC and Covenant. After sticking to a target, or otherwise coming to a rest a three-second fuze is activated.[2] Detonation is first visible as a flash of white-blue light and the kill zone area is instantly subjected to extreme temperatures, and whatever is in the ground zero area, be it or natural and unnatural formations or otherwise, are instantly vaporized. Because there is no magnetic field to contain the plasma, it begins to cool very quickly - thermal expansion begins to take over and the resulting heat fans outward and upward continuing to burn an area up to forty feet away until the resulting flames have cooled to the point where it cannot continue to expand. After the initial explosion, the kill radius area becomes charged with negative and positive particles which will form electrical currents visible for a short period after the explosion.