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Float glass is a sheet of glass made by floating molten glass on a bed of molten metal of a low melting point, typically tin, [1] although lead was used for the process in the past. [2] This method gives the sheet uniform thickness and a very flat surface. [ 3 ]
A Japanese glass fishing float. Glass floats were used by fishermen in many parts of the world to keep their fishing nets, as well as longlines or droplines, afloat.. Large groups of fishnets strung together, sometimes 50 miles (80 km) long, were set adrift in the ocean and supported near the surface by hollow glass balls or cylinders containing air to give them buoyancy.
A float can collect data while it is neutrally buoyant or moving through the water column. Often, floats are treated as disposable, as the expense of recovering them from remote areas of the ocean is prohibitive; when the batteries fail, a float ceases to function, and drifts at depth until it runs aground or floods and sinks.
The company's headquarters and main factories were located in Toledo, Ohio, with large float glass plants in Rossford, Ohio, Laurinburg, North Carolina, Ottawa, Illinois, Shreveport, Louisiana, and Lathrop, California. The company was formed in 1930 by the merger of Libbey-Owens's sheet-glass operation with the Edward Ford Plate Glass Company ...
Since the density of the float is its mass divided by volume, it needs to change its volume by 0.0109 × 16,600 = 181 cm 3 to drive that excursion; a small amount of that volume change is provided by the compressibility of the float itself, and excess buoyancy is required at the surface in order to keep the antenna above water. All Argo floats ...
The 300-plus-year-old glass onion bottles were discovered from the 1715 Treasure Fleet shipwreck, located off the coast of Florida. 300-year-old glass onion bottles discovered on Atlantic Ocean ...
A pair of Pittsburgh-area bridges reopened Saturday morning after 26 barges broke loose the previous night and floated uncontrolled down the Ohio River, damaging a marina, authorities said.
Fish are fascinated with floating objects, which they use to mark locations for mating activities. They aggregate around objects such as drifting flotsam, rafts, jellyfish and floating seaweed. The objects appear to provide a "visual stimulus in an optical void", [ 2 ] and offer refuge for juvenile fish from predators. [ 3 ]