6"/53 caliber gun 6"/53 caliber gun The 6"/53 caliber gun (spoken "six-inch-fifty-three-caliber") formed the main battery of some United States Navy light cruisers and three US submarines built during the 1920s. United States naval gun terminology indicates the gun fired a projectile 6 inches (15 cm) in diameter, and the barrel was 53 calibers long (barrel length is 6 inch x 53 = 318 inches or 8 meters.) The gun with side swing Welin breech block and Smith-Asbury mechanism weighed about 10 tonnes and used a silk bag containing 44-pounds (20 kg) of smokeless powder to give a 105-pound (47.6 kg) projectile a
Woolly hair autosomal recessive Woolly hair autosomal recessive Woolly hair autosomal recessive is a rare hereditary hair disorder characterized by sparse, short, curly hair. The scalp hair is sparse, short and curly. It grows slowly and stops growing after a few inches. This condition may be part of a more complex syndrome or an isolated mutation. Isolated cases are due to mutations in the lipase member H (LIPH), lysophosphatidic acid receptor 6 (LPAR6) or keratin 2A (KRT2) genes. Isolated cases are inherited in an autosomal recessive fashion. This is rare disorder. Precise estimates of its prevelence are not known. This is made by light