William Thomson, 1st Baron Kelvin William Thomson, 1st Baron Kelvin William Thomson, 1st Baron Kelvin, (26 June 1824 – 17 December 1907) was a Scots-Irish mathematical physicist and engineer who was born in Belfast in 1824. At the University of Glasgow he did important work in the mathematical analysis of electricity and formulation of the first and second laws of thermodynamics, and did much to unify the emerging discipline of physics in its modern form. He worked closely with mathematics professor Hugh Blackburn in his work. He also had a career as an electric telegraph engineer and inventor, which propelled him into the public eye
19th-century turnpikes in Massachusetts Massachusetts began in 1796, when the first act of incorporation for a turnpike was passed. By 1850, most turnpike corporations had either been dissolved or had stopped collecting tolls. In all, 118 acts of incorporation were passed (ten of these were in the territory that later became the state of Maine). Typical toll rates were twenty-five cents for every coach with additional charges of four cents for every man and horse. The following 19th century turnpikes were chartered and built in Massachusetts: 19th-century turnpikes in Massachusetts In the late 18th century and early 19th century, turnpikes, as opposed to ordinary