The textbook set a standard for early education in mathematical physics. It was Thomson's interpretation that was important. The papers had been full of the wonders of Röntgen's rays, about which Lord Kelvin was intensely skeptical until Röntgen himself sent him a copy of his Memoir"; on 17 January 1896, having read the paper and seen the photographs, he wrote Röntgen a letter saying that "I need not tell you that when I read the paper I was very much astonished and delighted. His mother died when he was six, and when aged eight, he moved with the family to Glasgow (1833) where his father, James Thomson, had been appointed as professor of mathematics at the University of Glasgow (1832).

I can say no more now than to congratulate you warmly on the great discovery you have made"[83] He would have his own hand X-rayed in May 1896.

He last consulted the essay just a few months before he died at the age of 83. Thomson risked his life several times during the laying of the first transatlantic cable. paper followed almost immediately. In 1906, Thomson demonstrated a hydrogen atom had only a single electron. Kelvin Building Opening – The Leys School, Cambridge (1893), List of scientists whose names are used as units, Scientists whose names are used in physical constants, People whose names are used in chemical element names, https://en.wikipedia.org/w/index.php?title=William_Thomson,_1st_Baron_Kelvin&oldid=980439589, Barons in the Peerage of the United Kingdom, Foreign associates of the National Academy of Sciences, Knights Grand Cross of the Royal Victorian Order, Members of the Privy Council of the United Kingdom, Members of the Prussian Academy of Sciences, Members of the Royal Swedish Academy of Sciences, People educated at the Royal Belfast Academical Institution, Presidents of the Royal Society of Edinburgh, Recipients of the Pour le Mérite (civil class), Scottish Engineering Hall of Fame inductees, Wikipedia articles incorporating a citation from the ODNB, Short description is different from Wikidata, Articles needing additional references from December 2017, All articles needing additional references, Articles with disputed statements from March 2015, Wikipedia articles with CANTIC identifiers, Wikipedia articles with SELIBR identifiers, Wikipedia articles with SNAC-ID identifiers, Wikipedia articles with SUDOC identifiers, Wikipedia articles with Trove identifiers, Wikipedia articles with WorldCat identifiers, Creative Commons Attribution-ShareAlike License, It is believed the "PNP" in his signature stands for "Professor of Natural Philosophy".

The book motivated Thomson to write his first published scientific paper[12] under the pseudonym P.Q.R., defending Fourier, and submitted to the Cambridge Mathematical Journal by his father. When are we excused for our erroneous conscience?

Thomson returned to critique Carnot's original publication and read his analysis to the Royal Society of Edinburgh in January 1849,[22] still convinced that the theory was fundamentally sound.