Marine Burglar Alarm

Marine burglar alarm squawks at the sound of bubbles

An underwater burglar alarm can listen out for the telltale noises of looters, and raise the alarm onshore
(Image: Tuncay Akal)

By Colin Barras
From Sit:
An estimated 1 million ancient shipwrecks litter the seafloor around the globe, proving a tempting target for looters and a nightmare for archaeologists and governments to protect.
But that could be set to change with the advent of a submarine alarm that can identify the telltale sounds of approaching treasure hunters in the hubbub of the oceans.
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