Shock wave moves faster before the blast wave, and thus, under certain circumstances, one restrike is able to create two circles created thanks to the induction.
Mshtuko wimbi unaenea kwa kasi kabla ya wimbi mlipuko, na hivyo, chini ya baadhi ya mazingira, moja restrike ni uwezo wa kujenga duru mbili umba shukrani kwa introduktionsutbildning.