 Igneous Rocks form from the solidification of molten rock. Intrusive igneous rocks are composed of crystals that are large enough to be seen with the naked eye because these rocks cooled slowly, deep within the Earth thereby allowing time for the crystals to grow. In contrast, extrusive (volcanic) igneous rocks cool very quickly after they erupt from a volcano, and so are composed of microsco...

Let X be a completely regular space and let A(X) be a ring of continuous real-valued functions onX which is closed under local bounded inversion. We show that the structure space of A(X) is homeomorphic to a quotient of the Stone–Čech compactification of X. We use this result to show that any realcompactification of X is homeomorphic to a subspace of the structure space of some ring of continuo...

the newly found chah?r t?qi of mileh milehgeh is one of the fire-temples of the sassanian era that was built, like other fire-temples of that time, with pieces of rock and plaster. this chah?r t?qi which is the remaining core of a larger building consists of four stone walls of different sizes surrounded by a round corridor. inside this fire-temple there is a raised platform for setting up fire...

We develop the theory of Heyting locally small spaces, including Stone-like dualities such as a new version Esakia duality and system concrete isomorphisms equivalences. In way, we continue building tame topology, realising Grothendieck’s ideas. use up-spectral spaces define standard up-spectralification Kolmogorov space. This research gives more understanding definable over structures with top...

This paper gives an overview of the OBST persistent object management system. OBST has been developed by the Forschungszentrum Informatik (FZI) as a contribution to the STONE project.1 The paper summarizes the design objectives and the current status of OBST, and highlights forthcoming developments with the system.

Although structures within the ancient settlement in Marina el-Alamein were built almost exclusively of local limestone, no remains quarries have been found. The author calculates cubature stone used construction houses, based on knowledge applied building solutions. resulting data make it possible to address question city managing works without its own quarry, sourcing limestone from subterran...