Chinese scientists have developed a crystal that produces ultraviolet light at a record 145.2 nanometers — meeting a key ...

We rely daily on the GPS on our phones to get to many different places in our lives. However, the technology stops working in the depths of the ocean, which is why submarines need something different.

Submarines are a marvel of modern engineering, and the realities of operating one (as well as working and living on one) are ...

Wenhai No.1 ARV and experimental devices. a depicts the hybrid underwater vehicle of Wenhai No.1 ARV. b represents the general overview of Wenhai No.1 ARV navigation and measuring sensors. Precise ...

Gravity-aided navigation leverages the spatial variations in Earth’s gravity field to support the positioning of autonomous underwater vehicles (AUVs) and submarines in environments where satellite ...