Explosive experiments are tests that involve the use of explosives in order to measure the effects of an explosion. These experiments are often conducted in a controlled environment and are used to study the properties of explosives, such as their detonation velocity, energy output, and other characteristics. ATESTS is an acronym for 'Advanced Tests of Explosives and Structures, ' which is a type of explosive experiment used to evaluate the performance of structures when subjected to an explosive blast.