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A shark tunnel (or aquarium tunnel, acrylic tunnel and exhibit tunnel) is an underwater tunnel that passes through an aquarium, typically with sharks and related aquatic life. They are usually made of thick acrylic glass .
The first modern aquarium made of glass was developed in the 19th century by Robert Warrington. [44] During the Victorian age, glass aquariums commonly had slate or steel bottoms, which allowed them to be heated underneath by an open-flame heat source. These aquariums had the glass panels attached with metal frames and sealed with putty.
The aquarium opened in 1985 after 10 months of construction. Tarlton developed a new method of building an acrylic tunnel by taking large sheets of clear acrylic, cutting them to size and heating them in an oven until they took the shape of the mould. Some of the sheets weighed over one tonne. [4]
In general, a larger-sized aquarium provides a more stable water-world and the hobbyist can also acquire a greater number of fish. A large aquarium can also enhance aesthetic value. With regards to material, an all-glass aquarium is preferable due to its reasonable cost and its superior ability to resist scratches and discoloration.
The AquaDom (mixed Latin and German: 'water dome', more formally 'water cathedral') was a 25-metre-tall (82 ft) cylindrical acrylic glass aquarium with built-in transparent elevator inside the lobby of the Radisson Collection Hotel in the DomAquarée complex at Karl-Liebknecht-Straße in Berlin-Mitte, Germany. [1]
Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.
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The Wardian case was the direct forerunner of the modern terrarium and vivarium and the inspiration for the glass aquarium. It is named after Nathaniel Bagshaw Ward (1791–1868) of London, who promoted the case after experiments. [1] He published a book titled On the Growth of Plants in Closely Glazed Cases in 1842. [2]