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Some were vessels that would have been abandoned in deep water, but the activists persuaded people to sink them in shallower waters. Significant donations were floating harbours and the large cable ship known as the 482. These ships now create a haven for marine life and are a destination for thousands of divers each year. [2]
A Cartesian diver or Cartesian devil is a classic science experiment which demonstrates the principle of buoyancy (Archimedes' principle) and the ideal gas law.The first written description of this device is provided by Raffaello Magiotti, in his book Renitenza certissima dell'acqua alla compressione (Very firm resistance of water to compression) published in 1648.
True North II was a small, 10.6 metre glass-bottom tour boat that sank on June 16, 2000, in 15 metres (49 ft) of water off of Tobermory, Ontario, Canada, in Georgian Bay, while transporting a class of 13 students from an overnight field trip to Flowerpot Island back to the mainland.
Buoyancy (/ ˈ b ɔɪ ən s i, ˈ b uː j ən s i /), [1] [2] or upthrust is a net upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. In a column of fluid, pressure increases with depth as a result of the weight of the overlying fluid.
When the 42-foot (12.8 m) gillnet fishing vessel attempted to depart Sudden Stream) on the coast of Yakutat Bay on the south-central coast of Alaska, 25 miles (40 km) from Yakutat and 8 nautical miles (15 km; 9.2 mi) southwest of Blizhni Point, large waves struck her, first breaking the windows in her wheelhouse, then washing the wheelhouse ...
In On Floating Bodies, Archimedes suggested that (c. 246 BC): Any object, totally or partially immersed in a fluid or liquid, is buoyed up by a force equal to the weight of the fluid displaced by the object. Archimedes' principle allows the buoyancy of any floating object partially or fully immersed in a fluid to be calculated.
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A submarine rescue buoy is a floating buoy, attached to a submarine and released in the event of a serious accident or sinking. The buoy remains attached to the ...