Is death by nuclear explosion the only instantaneous death?

Let's make a practical definition: instantaneous death is one that's faster than the brain's ability to receive and process nerve impulses associated with the process. read more

Technically, the only event that can be considered “instantaneous” is an event that lasts for less time than one Planck time. Planck time - Wikipedia A nuclear bomb would kill you in about 10 milliseconds, a considerably longer time than this. read more

For a given explosive, if the subject of the death is within 0.1 radian of the explosive arc, and the explosive arc is at least π * xdl (x is the subject(s) of death, d is the median density of the subject, l is the longest side of the subject), to ensure a fully enveloped conflagration occurs, with the potential for detonation. read more