Spool of solder. 1.6 mm. Solder (/ËsoÊldÉr/, /ËsÉldÉr/ or in North America /ËsÉdÉr/) is a fusible metal alloy used to create a permanent bond between metal workpieces. The word solder comes from the Middle English word soudur, via Old French solduree and soulder, from the Latin solidare, meaning to make solid.
Columbia, MD Population and Races. As of 2010-2014, the total population of Columbia is 102,116, which is 15.71% more than it was in 2000. The population growth rate is higher than the state average rate of 11.16% and is higher than the national average rate of 11.61%.
Columbia / k É Ë l Ê m b i É / is a city in the U.S. state of Missouri and the county seat of Boone County. Founded in 1821, it is home to the University of Missouri and is the principal city of the Columbia metropolitan area. It is Missouri's fourth most-populous city, with an estimated 120,612 residents in 2016.