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%.
District Of Columbia Population 2015. Washington, D.C., also known simply as D.C. or the District, is the capital of the United States.ashington, D.C. has an estimated population of 647,000 in 2014, which makes it the 23rd most populous city in the U.S. The city proper has a population density of 10,528 people per square mile (4,066/square kilometer).