Informal learning is the unofficial, unscheduled, impromptu way most of us learn to do our jobs. Informal learning is like riding a bicycle: the rider chooses the destination and the route. The cyclist can take a detour at a momentâs notice to admire the scenery or help a fellow rider.
The name mica is derived from the Latin micare, which means to glitter or also to shine. Mica is a naturally occurring group of silicate minerals that has a perfect basal cleavage, easily splits into thin luminae, and is most often translucent in appearance.
In its present form, glitter has only been around for about 75 years or so. However, scientists have found cave paintings over 2,000 years old that include mica flakes that give the paintings a sparkly appearance. Modern glitter as we know it was invented in 1934 by a New Jersey cattle rancher named Henry Ruschmann. Henry also dabbled as a machinist. His hobby led to the accidental discovery of a process that used a machine to precisely cut plastic films into thousands of tiny pieces.