How search teams could use sound to find the Titan sub -- and why it's a challenge
https://apnews.com/article/titan-titanic-submersible-sound-0a6cdf7fdd6d2b2ffff1f8b25f081faf
Search teams racing to find the missing Titanic submersible have detected underwater noises in the area. But it won't be easy to find the source of that sound in the ocean.
“It's not a simple problem,” said Matt Dzieciuch, an ocean acoustics expert at the Scripps Institution of Oceanography.