preserves
31Mount Diablo — West face of Mount Diablo and Hwy 24 Elevation …
32Midpeninsula Regional Open Space District — Monte Bello Open Space Preserve …
33National Tropical Botanical Garden — Allerton Garden on Kauaʻi island The National Tropical Botanical Garden is a group that sponors preservation of plants native to the tropics in a network of botanical gardens and preserves …
34Vamar Shipwreck Site — Infobox nrhp2 designated other1 name = Florida Underwater Archaeological Preserve designated other1 number = 9 designated other1 abbr = FUAP designated other1 date = 2004 name = Vamar caption = Gulf of Mexico, looking in the direction of the… …
35Dark-sky preserve — A dark sky preserve is an area, usually surrounding a park or observatory, that is kept free of artificial light. The purpose of a dark sky preserve is generally to promote astronomy. Because different national organizations have worked… …
36Museums of the inner German border — Numerous museums of the inner German border are located along the course of the former border between East and West Germany, documenting its story and in some places preserving original elements of the border fortifications. Exterior of the… …
37Conformal map — For other uses, see Conformal (disambiguation). A rectangular grid (top) and its image under a conformal map f (bottom). It is seen that f maps pairs of lines intersecting at 90° to pairs of curves still intersecting at 90°. In mathematics, a… …
38Pre-Abelian category — In mathematics, specifically in category theory, a pre Abelian category is an additive category that has all kernels and cokernels.Spelled out in more detail, this means that a category C is pre Abelian if: # C is preadditive, that is enriched… …
40Spacetime symmetries — refers to aspects of spacetime that can be described as exhibiting some form of symmetry. The role of symmetry in physics is important, for example, in simplifying solutions to many problems. Spacetime symmetries are used to simplify problems and …
