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%.
In 1990 the District of Columbia outranked three states in population, with a census total of 606,900, a decline of almost 5% from 1980.Considered as a city, the District ranked 23rd in the US in 2002.etween 1990 and 2000, the District's population declined from 606,900 to 572,059, an decrease of 5.7%. The population is projected to reach 655,000 by 2025. In 2000 the median age was 34.6. Persons under 18 years old accounted for 20.1% of the population while 12.2% were age 65 or older.