Meaning: 1  improvise. 2  act without preparation. 3  to let things go as they may. 4  determined on the circumstances. 5  according to the demand of the situation.
Henry Moseley. English physicist Henry Moseley, who arranged the Periodic Table in order of the atomic numbers of the elements. Henry Moseley's research career lasted only forty months before tragically ending with his death on a Gallipoli battlefield in World War I. But in his classic study of the x-ray spectra of elements, he established the truly scientific basis of the Periodic Table by arranging chemical elements in the order of their atomic numbers. Henry Gwyn Jeffreys Moseley, who was always called Harry by his family, was born in Weymouth, England, on November 23, 1887.
Charles Lyell was the author of Principles of Geology, in which he introduced the theory of uniformitarianism. Charles Lyell lived from 1797 to 1875. Throughout his life, his first love was geology. By using his studies of the Earth, Lyell was one of the first scientists to try and create a time scale for the history of the earth. His book titled Principles of Geology is thought to be one of the most important scientific books ever written because it proposed a way to study the forces that changed the geology of the earth by observing geology of the modern world.