History of universities in Scotland perhaps the first of their kind in the world. His students founded practical chemistry at Aberdeen soon after. William Thomson, 1st Baron Kelvin was appointed to the chair of natural philosophy at Glasgow aged only 22. His work included the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics. By 1870 Kelvin and Rankine had made Glasgow the leading centre of science and engineering education and investigation in Britain. At Edinburgh, major figures included David Brewster (1781–1868), who made contributions to the science of optics and to the development of photography. Fleeming Jenkin (1833–85) was
Expansion of Jerusalem in the 19th century 20 impoverished families. The cornerstone of the neighborhood was laid in 1890, near the Tomb of Simeon the Just. Expansion of Jerusalem in the 19th century The expansion of Jerusalem in the 19th century, also referred to as the departure from the walls, was the process of building new residences outside of the Old City walls, and shifting the city center to the new neighborhoods. The process started in the mid-19th century and by the early 20th century had entirely transformed the city. Prior to the 19th century, the main built up areas outside the walls were the Mosque of