Suffice it to say Lord Kelvin didn't sit around wasting time on the Internet.
"In Glasgow, Thomson created the first physics laboratory in Britain. He was a pioneer in many different fields, particularly electromagnetism and thermodynamics. Together with Faraday, he was responsible for the introduction of the concept of an electromagnetic field. In thermodynamics, Thomson assimilated and developed the work of the pioneers of the subject, Nicolas Carnot and James Joule. One of the most important results of his work was his idea of an absolute zero of temperature - the scale based on this is named after him."
"Throughout his work Thomson's overriding goal was the practical utilisation of science. He achieved fame through his work on submarine telegraphy, a major practical problem of the day. Kelvin was employed as a scientific adviser in the laying of the Atlantic telegraph cables in 1857-1858 and 1865-1866, for which he was knighted in 1866. His interest in marine issues also inspired him to develop a mariners' compass and invent a tide machine and depth-measuring equipment. He invented many electrical instruments and his house in Glasgow was the first to be lit by electric light."
https://www.bbc.co.uk/history/historic_figures/kelvin_lord.shtml