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2. Lens (hydrology) - Wikipedia

   en.wikipedia.org/wiki/Lens_(hydrology)

   A freshwater lens on an island. In hydrology, a lens, also called freshwater lens or Ghyben-Herzberg lens, is a convex-shaped layer of fresh groundwater that floats above the denser saltwater and is usually found on small coral or limestone islands and atolls.

3. Saltwater intrusion - Wikipedia

   en.wikipedia.org/wiki/Saltwater_intrusion

   The first physical formulations of saltwater intrusion were made by Willem Badon-Ghijben in 1888 and 1889 as well as Alexander Herzberg in 1901, thus called the Ghyben–Herzberg relation. [15] They derived analytical solutions to approximate the intrusion behavior, which are based on a number of assumptions that do not hold in all field cases.

4. Gerhard Herzberg - Wikipedia

   en.wikipedia.org/wiki/Gerhard_Herzberg

   Gerhard Heinrich Friedrich Otto Julius Herzberg, PC CC FRSC FRS [1] (German: [ˈɡeːɐ̯.haʁt ˈhɛʁt͡sˌbɛʁk] ⓘ; December 25, 1904 – March 3, 1999) was a German-Canadian pioneering physicist and physical chemist, who won the Nobel Prize for Chemistry in 1971, "for his contributions to the knowledge of electronic structure and geometry of molecules, particularly free radicals". [2]

5. Ghyben-Herzberg lens - Wikipedia

   en.wikipedia.org/?title=Ghyben-Herzberg_lens&...

   Lens (hydrology) From a page move : This is a redirect from a page that has been moved (renamed). This page was kept as a redirect to avoid breaking links, both internal and external, that may have been made to the old page name.

6. File:Chromatic aberration lens diagram.svg - Wikipedia

   en.wikipedia.org/wiki/File:Chromatic_aberration...

   Attribution: DrBob at the English-language Wikipedia: You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner ...

7. Sentence diagram - Wikipedia

   en.wikipedia.org/wiki/Sentence_diagram

   A sentence diagram is a pictorial representation of the grammatical structure of a sentence. The term "sentence diagram" is used more when teaching written language, where sentences are diagrammed. The model shows the relations between words and the nature of sentence structure and can be used as a tool to help recognize which potential ...

8. Cardinal point (optics) - Wikipedia

   en.wikipedia.org/wiki/Cardinal_point_(optics)

   The cardinal points were all included in a single diagram as early as 1864 (Donders), with the object in air and the image in a different medium. Cardinal point diagram for an optical system with different media on each side. F for Focal point, P for Principal point, NP for Nodal Point, and efl for effective focal length. The chief ray is shown ...

9. Liquid-mirror telescope - Wikipedia

   en.wikipedia.org/wiki/Liquid-mirror_telescope

   The force of gravity (red), the buoyancy force (green), and the resultant centripetal force (blue) In the following discussion, represents the acceleration due to gravity, represents the angular speed of the liquid's rotation, in radians per second, is the mass of an infinitesimal parcel of liquid material on the surface of the liquid, is the distance of the parcel from the axis of rotation ...