William Thomson, Lord Kelvin

William Thomson, a British physicist, was born June 26, 1824. Thomson was one of the pioneers in the new field of thermodynamics in the late 1840s, helped formulate the second law of thermodynamics in the 1850s (the one that says entropy is always increasing, so the...

Haakon Shetelig

Haakon Shetelig, a Norwegian archaeologist, was born June 25, 1877. In 1904, Shetelig and a Swedish collaborator, Gabriel Gustafson, unearthed, in Oseberg, Norway, the most signficant Viking burial mound ever discovered. The star occupant of the mound was a...

Wilhelm IV, Landgrave of Hesse-Cassel

Wilhelm IV, the Landgrave of Hesse-Cassel, was born June 24, 1532. He inherited his Landraviate in 1567 and promptly set up an astronomical observatory at his court at Cassel (now Kassel), importing a great astronomer, Christoph Rothmann, as well as a gifted...

F. Gowland Hopkins

Frederick Gowland Hopkins, an English biochemist, was born June 20, 1861. Hopkins was the first professor of biochemistry at Cambridge and helped found their Department of Biochemistry.  In 1912, Hopkins published a paper with the bland title, “Feeding Experiments...

Silvanus P. Thompson

Silvanus Phillips Thompson, an English physicist, was born June 19, 1851. Thompson was an accomplished but not brilliant electrical engineer and a fervent advocate of hands-on technical education. He taught at Finsbury Technical College in London (second image)....