After Black Canary unleashed a sonic scream to incapacitate The Flash, the scene switches from an on-the-streets view of the confrontation back to STAR Labs, where on the computer screen data about her attack is recorded. At the top of the screen, "250 DB" reads, indicating that the loudness of her scream was 250 decibels; however, the loudest theoretical sound that could be observed or recorded is 194 decibels. For practical measurements, past around 170 the scale for loudness falls apart; measurements this high only reflect energy, not loudness as the vibrations become more of a shock wave rather than an observable sound. At 250 decibels, the amount of energy for this sound is approximately equivalent to the explosive power of the atomic bomb dropped on Hiroshima.