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The sunken Alvin on the ocean bottom in June 1969, photographed by USNS Mizar (T-AGOR-11). Alvin , aboard the Navy tender ship Lulu , was lost as it was being transported on October 26, 1968. Lulu , a vessel created from a pair of decommissioned U.S. Navy pontoon boats with a support structure added on, was lowering Alvin over the side when two ...
An algebraic model for estimating the thickness of a freshwater lens was developed using groundwater simulations by Bailey et al. 2008. This equation relates lens thickness to geologic and climatic factors such as island geometry, geologic composition, and recharge rate, among others. [1] The equation is summarized below:
Ocean optics is the study of how light interacts with water and the materials in water. Although research often focuses on the sea, the field broadly includes rivers, lakes, inland waters, coastal waters, and large ocean basins. How light acts in water is critical to how ecosystems function underwater.
English: Thick lens diagram. d=thickness of lens at center; e=thickness of lens at edge; r1=radius of curvature of the first surface; r2=radius of curvature of the second surface; H=primary principal plane; H′=secondary principal plane; F=front focal point; F′=back focal point; S1=vertex of the first optical surface; S2=vertex of the second ...
An exploded-view drawing is a diagram, picture, schematic or technical drawing of an object, that shows the relationship or order of assembly of various parts. [1]It shows the components of an object slightly separated by distance, or suspended in surrounding space in the case of a three-dimensional exploded diagram.
Bay – a space on the ship that can hold containers, container ships have several bays, these bays are divided into two parts: on-deck and under-deck (hold). If the bay number is odd it is suitable for 20 feet containers, if the bay number is even it is suitable for 40 feet containers. [3] [12]
Lying more than 20,000 ft (3.8 mi; 6,100 m) below the surface of the ocean, it was the deepest shipwreck ever surveyed until the discovery of USS Samuel B. Roberts on 22 June 2022. On 30 October 2019, the Petrel , a research vessel belonging to Vulcan Inc. , discovered the remains of what was believed to be Johnston near the bottom of the ...
The crystalline lenses of fishes' eyes are extremely convex, almost spherical, and their refractive indices are the highest of all the animals. These properties enable proper focusing of the light rays and in turn proper image formation on the retina. This convex lens gives the name to the fisheye lens in photography. [6]