The USS Becuna submarine sank 3,888 tons of shipping and earned four battle stars in World War II.
I toured the USS Becuna, a World War II battleship and the only submarine of its kind left in the world. Take a look inside.
When the power is out for some reason, we have to resort to a generator for running the crucial appliances. But a generator running for a long time can consume a lot of energy and money To optimize ...