are there deep sea explorations?
Yes, discovered about 4,700 new marine species, and made 492 deep sea soundings, 133 bottom dredges, 151 open water trawls and 263 serial water temperature observations.
Sea
On her journey round the globe, "HMS Challenger" discovered about 4,700 new marine species, and made 492 deep sea soundings, 133 bottom dredges, 151 open water trawls and 263 serial water temperature observations. In the southern Atlantic in 1898/1899, Carl Chun on the "Valdivia" brought many new life forms to the surface from depths of over . The first observations of deep-sea animals in their natural environment were made in 1930 by William Beebe and Otis Barton who descended to in the spherical steel Bathysphere. This was lowered by cable but by 1960 a self-powered submersible, Trieste developed by Jacques Piccard, took Piccard and Don Walsh to the deepest part of the Earth's oceans, the Mariana Trench in the Pacific, reaching a record depth of about , a feat not repeated until 2012 when James Cameron piloted the Deepsea Challenger to similar depths. An atmospheric diving suit can be worn for deep sea operations, with a new world record being set in 2006 when a US Navy diver descend
which of the following is not generally a factor in wave generation in the open ocean UNANSWERABLE what is the definition of 'sea'? The sea, the world ocean, or simply the ocean is the connected body of salty water that covers over 70% of Earth's surface. what is meant by 'seawater'? It is water in the sea a characteristic of seawater is that it is salty. how do waves form? Wind blowing over the surface of a body of water forms waves that are perpendicular to the direction of the wind. and tsunamis? It is an unusual form of wave caused by an infrequent powerful event such as an underwater earthquake or landslide, a meteorite impact, a volcanic eruption or a collapse of land into the sea. what affects currents? The sea causes friction at the interface between air and sea. what are 'tides'? They are the regular rise and fall in water level experienced by seas and oceans in response to the gravitational influences of the Moon and the Sun, and the effects of the Earth's rotation. what is meant by 'ocean basin'? The oceanic crust is composed of relatively dense basalt and is some five to ten kilometres (three to six miles) thick. name some marine habitats? Coral reefs, cold water reefs harbour a wide array of species including corals. which algae is found here? Sargassum, kelp, meadows to name a few. and plants? Plant growth is higher like planktons. is there a law that governs it? Yes,"Freedom of the seas", the United Nations Convention on the Law of the Sea (UNCLOS), International Maritime Organization.
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Sea [SEP] History of oceanography and deep sea exploration
Scientific oceanography began with the voyages of Captain James Cook from 1768 to 1779, describing the Pacific with unprecedented precision from 71 degrees South to 71 degrees North. John Harrison's chronometers supported Cook's accurate navigation and charting on two of these voyages, permanently improving the standard attainable for subsequent work. Other expeditions followed in the nineteenth century, from Russia, France, the Netherlands and the United States as well as Britain. On HMS "Beagle", which provided Charles Darwin with ideas and materials for his 1859 book "On the Origin of Species", the ship's captain, Robert FitzRoy, charted the seas and coasts and published his four-volume report of the ship's three voyages in 1839.