Submarines operate for weeks or months beneath the ocean surface, cut off from the satellite signals that guide nearly every other modern vehicle. GPS radio waves cannot penetrate seawater beyond a ...

Up to now, underwater navigation for divers has been limited primarily to orientation at distinctive points or compass navigation. Although there are concepts that, similar to a sonar, are intended to ...

Two Drexel University mechanical engineers have received a grant from the Office of Naval Research to help develop advanced underwater robots inspired by marine mammals. The project, led by Professor ...

Buoys located via GNSS and electromagnetic signals enable divers to navigate underwater in a way that is gentle on the animals. A head-up display in the mask shows the appropriate routes. A team led ...

Why have just one technological breakthrough when you can have two at the same time? The Royal Navy has installed for the first time a quantum clock into its XV Excalibur robotic submarine for ...