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How do submarines see underwater?
On or near the surface, submariners 'see' through a periscope mast raised through the fin above the hull from within the submarine's Control Room. In the very latest submarines, the extendable periscopes will be largely superseded by an electronic mast that uses a camera and displays the picture on a monitor. The optronics masts have a closed circuit television (CCTV) camera to use by day or a thermal imaging (heat seeking) camera for use at night or in bad visibility. Submarines cannot see underwater and so use sound energy to detect obstacles and objects. When under the water the submarine can emit SONAR (SOund Navigation and Ranging) sound waves through the water (know as 'pinging'). The sound wave or sonar ping echo is bounced back to the submarine if it detects another vessel or obstacle. The strength of the returned signal or sound provides an indication of the range (distance) between the submarine and the other vessel (ship or submarine) or obstacle. Modern submarines have excellent radio and satellite reception and communications systems and underwater telephones. When sending out sound waves by sonar, a submarine could be detected by another ship or submarine. When wishing to remain undetected, a submarine will listen for and hear sounds underwater through hydrophones (underwater microphones).
What is a valley underwater called?
A valley underwater is called a submarine canyon. These can form through a variety of geological processes, such as erosion by underwater currents or the collapse of underwater sediment. Submarine canyons can be important habitats for a diverse range of marine life.
What is the Finding Nemo ride at Disneyland?
The ride is called "Finding Nemo Submarine Voyage", based on the 2003 film and its sequels. The feature in Tomorrowland is based on the original 1959 Submarine Voyage ride that closed in 1998.It is a submarine ride underwater. Visitors get to sit in a small, dark submarine and travel through a shallow pond. Underwater, the riders will get to meet Nemo, Dory, Bruce, and all the little fish characters from Disney's "Finding Nemo" movie.
How is the word submarine used in a sentence?
A submarine is an underwater craft, or a word used to describe something that is under water. Here are a couple of sentences. The submarine moves with silent deliberation through the cold dark water. The submarine canyons posed problems when the search vessels began looking for the nuclear weapon that had been lost at sea.
Is Europe located east of the Pacific?
The Pacific is on the opposite side of the world to Europe. If you were in parts of the northern Pacific Ocean, you could travel east to get to Europe, crossing North America and the Atlantic Ocean. You could also travel west to get to it, crossing through Russia, to the part of Russia that is in Europe.
Deep valleys that run through a continental slope are called?
Submarine canyons. These are steep-sided valleys that cut into the continental slope and sometimes extend onto the continental shelf. Submarine canyons can be formed by various processes, including erosion from turbidity currents or underwater landslides.
What device allowed Morse code to be sent underwater in 1915?
In 1915, the device that allowed Morse code to be sent underwater was the "submarine telegraphy" system, specifically utilizing the "submarine cable" technology. This system transmitted electrical signals through insulated cables laid on or beneath the ocean floor. By using variations in electrical currents, operators could effectively send Morse code messages underwater, facilitating communication between ships and shore stations.
How do you make a miniature submarine for a 7th grade project?
Take some toast weigh it down and stab something through it that floats. Itwill get soggy underwater and release the floating object
Asia has small coastlinewhy?
Asia has a HUGE coastline..... http://en.wikipedia.org/wiki/Image:Asie.svg It extends from the Arctic Ocean to the Pacific - crossing 9 timezones, and down through the Pacific to the Indian Ocean and up to the Red Sea, crossing 10 timezones - and it then touches on the Mediterranean and the Black and Caspian Seas.
How can a submarine stay submerged at certain depth underwater?
The military submarines maintain depth by use of the planes. As they move through the water, a little up or down "tilt" on the planes will keep the boat at the correct depth.
True or False Mid-ocean ridges are actually underwater mountain ranges?
It is true that mid-ocean ridges are underwater mountain ranges. These ridges are long, seismically active submarine ridges associated with seafloor spreading.
Who invented the submerine during the renaissance?
The first underwater warship was developed by Leonardo da Vinci. da Vinci kept his plans secret because he didn't want to make war any more terrifying than it already was. In 1578 William Borne began drawing plans for a submarine. His submarine was never built. Borne's submarine worked by using extra tanks which could be filled so the submarine would submerge. The tanks would be emptied for the submarine to surface. In 1620 Cornelis Drebbel, a Dutch inventor, built a leather covered rowboat with oars. The oars came out through watertight seals. Twelve people could ride in the submarine. Drebbel was an engineer who worked for the British navy. Drebbel was the first to discuss the problem of air replenishment while the submarine submerged. Drebbel's submarine could only go down about fifteen feet. It could stay underwater for a couple of hours.
