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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.
Floats (also called pontoons) are airtight hollow structures, similar to pressure vessels, designed to provide buoyancy in water. Their principal applications are in watercraft hulls , aircraft floats , floating piers , pontoon rhinos , pontoon bridges , and marine engineering applications such as salvage .
1. That part of the ocean lying more than a few hundred nautical mile s from shore, and thus beyond the outer boundary of green water. 2. More generally, the open ocean or deep sea. blue-water navy 1. A navy capable of sustained operations in the open ocean, beyond a few hundred nautical miles from shore. 2.
Float (nautical), an external, buoyant section of a water vessel (such as a pontoon boat or a floatplane) Float (parade), a decorated vehicle or moving platform, could be animal- or man-drawn or motorized, used in a festive parade; Float shifting or "floating gears", the practice of shifting gears on a manual transmission without using the clutch
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A Galileo thermometer (or Galilean thermometer) is a thermometer made of a sealed glass cylinder containing a clear liquid and several glass vessels of varying density. The individual floats rise or fall in proportion to their respective density and the density of the surrounding liquid as the temperature changes.