seam roof
61Windblast — is a term commonly used in mining to describe a sudden rush of air or gas due to the collapse of a void.CausesWindblast is common in longwall coal mines, especially those whose roof strata are competent, and do not cave immediately behind the… …
62Curtis W. Fentress — Curtis Fentress, FAIA, RIBA Born 1947 Greensboro, North Carolina Nationality American Awards More than 300 Awards for Innovation and Design Excellence Work Practice …
63Djebel Ressas — Jebel Ressas Djebel Ressas in cloud cover, as viewed from the northwest Elevation …
64Medina Armory — U.S. National Register of Historic Places …
65Hermann's Tortoise — Taxobox name = Hermann s Tortoise image width = 240px image caption = Testudo hermanni hermanni on Majorca status = LR/nt status system = iucn2.3 regnum = Animalia phylum = Chordata classis = Sauropsida ordo = Testudines subordo = Cryptodira… …
66Dawdon — Coordinates: 54°49′44″N 1°19′37″W / 54.829°N 1.327°W / 54.829; 1.327 …
67Big Pit National Coal Museum — Coordinates: 51°46′21″N 3°06′18″W / 51.7724°N 3.1050°W / 51.7724; 3.1050 …
68Pretoria Pit Disaster — was a Mining accident that occurred on 21 December 1910, when there was a massive underground explosion in Pretoria Pit, (The Hulton Colliery), formally No. 3 Bank Pit, in Westhoughton, Lancashire, between Wigan and Bolton, in North West England …
69Lego Rock Raiders — was a Lego theme started 1999, and was discontinued in 2000. Rock Raiders was the only theme in the Lego Underground series. The theme, while short lived, featured sixteen sets and was backed up by numerous story related media, including several… …
70Richard Carleton — This article is about Australian journalist. For English composer, see Richard Carlton. Richard Carleton Born 11 July 1943(1943 07 11) Bowral, New South Wales, Australia …
