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 19th-century turnpikes in Massachusetts In the late 18th century and early 19th century, turnpikes, as opposed to ordinary roads of the same time, were roads where gates barred travelers from continuing and at which payments were demanded for the use of the road. The word "turnpike" itself comes from the fact that these gates, called "pikes," were "turned" once the toll was paid. The privilege of building and operating turnpikes was conferred by the state legislature to "turnpike corporations". Turnpikes were constructed using private capital, were privately owned, and were operated for revenue from toll collection. The turnpike era in