While home insulation remains one of its most common applications, the name itself has become a generic term for any material containing thin fibers of glass formed into a woven layer or used as reinforcement. The glass in fiberglass is the same basic substance used in windows and glassware. Molten glass is extruded through ultra fine openings measured in microns, resulting in thread-like formations which can be woven together to form a rough cloth or patch.
The answer is 100. We assume you are converting between decade and millennium. You can view more details on each measurement unit: decade or millennium. The SI base unit for time is the second. 1 second is equal to 3.17097919838E-9 decade, or 3.17097919838E-11 millennium. Note that rounding errors may occur, so always check the results.
First, a definition--a century is a hundred years. That's the easy part. The slightly tricky part is to figure out which years fall in any particular century. For instance, the year 1997 is part of the twentieth century. So were the years 1941, 1911 and 1999. In other words, all of the years that begin with 19 fall into the twentieth century . . . well, almost. The exceptions are 1900, which is part of the 19th century, and 2000 which is part of the 20th century.