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First were sailing ships, THEN steam ships.
paris
that was the kinetic energy?
Convoys were used to destroy any U-boats that were in their way.
You may be referring to the "trade winds".
Wind of course
It had sailing galleys which were used to escort and protect its trading ships and trading stations in the Western Mediterranean.
they put cotton in a boat and brought it the the north
The ships he used were mostly large sailing ships from France, and Caravels. Three of them were called the Esperanza, San Christoval, and Miguel.
When sailing the ocean blue, buoys are an invaluable tool. They assist in navigation by directing ships into shipping channels and away from shoals or crowds.
Sebastian Cabot first sailed to America in 1497, in the company of his father. He sailed to America a second time in 1508 with two English ships. On this voyage, he discovered the mouth of Hudson Bay. All ships he used were 3-mast sailing ships.
Vasco Da Gama's ship was powered by the wind, it was a sailing boat.