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.
Hipparchus is considered as the father of trigonometry. he was the one who found the relation between angles of a triangle and its lengths of sides. this relation has developeâ¦d into an entirely new branch in mathematics as trigonometry. so, one might as well say that he 'made' trigonometry.