Conclusion: the shell fragmentsandblast waves are the mainwoundingfactorsduringtheexplosionofpowerfulbombsand high speed shell fragments increasethe wounding effectsofblast waves.
Even without unexploded devices, investigators can still sift through the blast marks of the detonated devices to determine how the bombs were constructed.
More recently, a meteor exploded over the steppes of southwestern Russia on February 15, a blast that scientists at Canada's University of Western Ontario estimated had the energy of about 30 early nuclear bombs.