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%.
The demographics of Washington, D.C., also known as the District of Columbia, reflect an ethnically diverse, cosmopolitan, mid-size capital city. In 2015, the District had a population of 672,228 people with a resident density of 11,000 people per square mile. The city has seen a net population gain of more than 70,000 people since the 2010 Census and more than 100,000 people since the 2000 Census.