GEOLOGY

Detailed explanation-1: -Thomas Young, (born June 13, 1773, Milverton, Somerset, England-died May 10, 1829, London), English physician and physicist who established the principle of interference of light and thus resurrected the century-old wave theory of light. He was also an Egyptologist who helped decipher the Rosetta Stone.

Detailed explanation-2: -Euler was the first to introduce the notation for a function f(x). He also popularized the use of the Greek letter to denote the ratio of a circle’s circumference to its diameter. Euler also made contributions in the fields of number theory, graph theory, logic, and applied mathematics.

Detailed explanation-3: -Leonhard Euler, (born April 15, 1707, Basel, Switzerland-died September 18, 1783, St. Petersburg, Russia), Swiss mathematician and physicist, one of the founders of pure mathematics.