Photo by Swanson Chan on Unsplash
Photo by Swanson Chan on Unsplash Science, Health & Technology Lou Corpuz-Bosshart Chronic ship noise can lead to stress, hearing loss and feeding problems for marine mammals like whales, dolphins and porpoises. UBC researchers are diving in to help address the issue. According to project lead Dr. Rajeev Jaiman , an associate professor in the department of mechanical engineering, propeller noise accounts for much of the acoustic barrage from ships. "Propeller noise can hit 170 decibels, the equivalent of a jet engine or a rocket lift-off," said Dr. Jaiman. Popping and singing. The reason for the noise is bubbles. The ship's movement and its propeller's rotation create steam bubbles that then implode.
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