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∙ 14y agoUS Naval vessels are still screened when moving. But all of those WWII vessels were used up during the Vietnam era, and have since been replaced by sophisticated computers which have enhanced aircraft/submarine/missile defenses.
Stated another way, US naval vessels aren't crossing oceans the way you see them on old WWII television films; a convoy ringed by destroyers (although it can still be done). 21st century naval vessels still cross oceans, but with the technology mentioned in the first paragraph. The ships move, and are monitored the whole way...if and when trouble erupts, that technology is activated.
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∙ 14y agoDouble hulled ships, outriggers Double hulled ships, outriggers
The technology in the 1400-1500's made ships better for sailing by the use of rudders, moveable sails, and larger ships. Navigating became better through the use of the astrolabe and better compasses. Mapping also was better.
Compass and astrolabe. Along with larger ships and the movable sail it allowed for exploration.
he used ships
they used cords to keep their ships together
If you are talking about during revolution times then they would use ships, but if you are talking about transporting goods today, then they would use planes, cargo ship,anything that could go one place to another basically.
They sure do.
Non-commissioned naval ships in wartime are often referred to as "auxiliary vessels" or "merchant navy ships." These vessels are typically civilian ships that are requisitioned by the navy for military use, such as transporting troops, supplies, or serving as support ships. They do not have the same level of combat capabilities as commissioned warships.
viking ship designs
Torpedoes are used during a time of war to sink other ships.
Transporting Oil.
To my own information: they use its wind system to activate their boats and ships (as there were no engines at that time). They also make use of the rain associated with these monsoons to secure their water needs during their long period travels. Any more input and/or modifications are welcomed.
For one the cells do not use the water they are transporting. Rigidity of structure, for another reason.
Having dead water-transporting cells, like tracheids and vessels in plants, enables more efficient water transport due to the absence of cellular contents that might impede water flow. Dead cells provide structural support and create continuous hollow tubes for water movement without cellular metabolism requirements, allowing for long-distance water transport in plants.
The use by British and the Americans of a convoy system (40-70 ships) and the development of more effective anti-submarine weapons such as depth charges and radar helped protect Allied merchant ships.
NOT UNLESS YOU USE BUBBLE RAP
During World War I, not only American General John Pershing but also all other Allied commanders and forces utilized the convoy-system to transport forces and supplies across the waters of the ocean. The reason was, quite simply, safety: utilizing the convoy-system provided better protection for merchant ships and put enemy attacks at a great disadvantage, thereby enabling more ships to travel safely.