voids in rock
111Fly ash — Photomicrograph made with a Scanning Electron Microscope (SEM): Fly ash particles at 2,000x magnification Fly ash is one of the residues generated in combustion, and comprises the fine particles that rise with the flue gases. Ash which does not… …
112Caisson (engineering) — In geotechnical engineering, a caisson is a retaining, watertight structure used, for example, to work on the foundations of a bridge pier, for the construction of a concrete dam, or for the repair of ships. These are constructed such that the… …
113Bath Stone — is an Oolitic Limestone comprising granular fragments of calcium carbonate. Originally obtained from the Combe Down and Bathampton Down Mines under Combe Down, Somerset, England, its warm, honey colouring gives the World Heritage City of Bath,… …
114Dorothy Howell Rodham — Dorothy H. Rodham January 2009 Born Dorothy Emma Howell June 4, 1919(1919 06 04) Chicago, Illinois, United States Died November 1 …
115Supercritical carbon dioxide — Carbon dioxide pressure temperature phase diagram Supercritical carbon dioxide is a fluid state of carbon dioxide where it is held at or above its critical temperature and critical pressure. Carbon dioxide usually behaves as a gas in air at STP… …
116Combe Down and Bathampton Down Mines — Site of Special Scientific Interest …
117Calendar of 2001 — ▪ 2002 January America has never been united by blood or birth or soil. We are bound by ideals that move us beyond our backgrounds, lift us above our interests and teach us what it means to be citizens. Every child must be taught these principles …
118Agriculture in the United Kingdom — A combine harvester in Scotland Agriculture in the United Kingdom uses around 71% of the country s land area and contributes about 0.6% of its gross value added. The UK produces less than 60% of the food it eats and the industry s share of the… …
119halite — The mineral form of sodium chloride (NaC1), or rock salt. Halite occurs, sometimes to considerable thicknesses, in many buried rock successions, from which it has been extracted both by mining and by redissolving it in water pumped from and… …
120pore space — 1. The total space not occupied by solid soil or rock particles [22]. 2. The space occupied by voids containing gases or liquids in soil or rock samples [16]. See also interstice; porosity; porosity, effective; porosity, primary;… …
