Marie Curie, Discoverer of Radioactivity (1867-1934)

Johann Wilhelm Hittorf, Visionary Electrochemist (1824-1914)

Heinrich Geißler, Master Glassblower (1814-1879)

William Röntgen, discoverer of X-rays (1845-1923)

Willian Crookes, Inventor of the “Crookes Tube” (1832-1919)

Heinrich Daniel Ruhmkorff, Inventor of the High Voltage Induction Coil (1803-1877)

Michael Faraday, Pioneer of Electromagnetic Induction (1791-1867)