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2. Tumble finishing - Wikipedia

   en.wikipedia.org/wiki/Tumble_finishing

   Tumble finishing, also known as tumbling or rumbling, [1] is a technique for smoothing and polishing a rough surface on relatively small parts. In the field of metalworking, a similar process called barreling, or barrel finishing, [2] works upon the same principles. Tumbled stones are made with rock tumblers in a process very similar to the ...

3. Substrate (aquarium) - Wikipedia

   en.wikipedia.org/wiki/Substrate_(aquarium)

   For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]

4. List of largest aquariums - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_aquariums

   Large aquariums exhibit a large number of species and animals in a large range of tanks. These tend to be public aquariums and may also be oceanariums and dolphinariums, in order to exhibit a wide range of different marine animals for the public. In operation Only aquariums with a total capacity of more than 10 million litres and/or a tank larger than 5 million litres are included in the list ...

5. Ecosphere (aquarium) - Wikipedia

   en.wikipedia.org/wiki/Ecosphere_(aquarium)

   Ecosphere (aquarium) A pod Ecosphere. The EcoSphere and "Original Ecosphere" are trademark names for sealed blown-glass miniature aquaria formerly produced by Ecosphere Associates, Inc., of Tucson, Arizona, United States. Spherical or ovoid, the aquaria range from roughly pool-ball-size to basket-ball-size. They are sold worldwide as scientific ...

6. Shark tunnel - Wikipedia

   en.wikipedia.org/wiki/Shark_tunnel

   Shark tunnel. 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.

7. Missing Oregon nurse found dead days after returning home ...

   www.aol.com/news/missing-oregon-nurse-found-dead...

   An Oregon nurse who vanished days after she returned home from her Hawaii wedding was found dead Saturday amid a 3-day search as police accused her 27-year-old neighbor of murder. Officials said ...