Coconut oil, or copra oil, is an edible oil extracted from the kernel or meat of mature coconuts harvested from the coconut palm (Cocos nucifera). It has various applications.
The chronometer is an instrument that accurately measures time. The first one invented was a marine chronometer, and it was created out of the necessity to have an accurate timekeeper for sea travel. John Harrison, a British clockmaker, invented this device in 1737.
The praxinoscope was invented in 1877 by Charles-Ãmile Reynaud. It was made by using strips of picture around the inside of a circle, and a set of mirrors on another circle inside the original.