12 ore 59 min, 20 nov 1963 anni - First Multibeam Sounding
Descrizione:
The first operational multibeam sounding system is installed on the USNS Compass Island. This system observes a number of soundings to the left and right of a ship’s head as well as vertically. This is important because it is the development of a relatively accurate map of the sea floor as the ship proceeds on a survey lineAggiunto al nastro di tempo:
Data:
12 ore 59 min, 20 nov 1963 anni
Adesso
~ 60 years ago
