The use of this

The use of this technology has vastly accelerated the archaeological research. "An ROV can remain underwater all day or longer and with continuous video feed to the control room," says James Goold, the chair of RPM Nautical Foundation. "We cover up to 5km (3.1 miles) day of searching the seabed [for artefacts] with all of it recorded on video and with continuous exact location reporting." Human divers, in contrast, can only operate safely for about an hour at a time, and they can't cover the same distances – so it's much more efficient to only engage them once a precise location has been identified.

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