“…Most of the attention, however, goes to how the concept of electricity moves in different contexts and acquires new meanings, sometimes totally unrelated to the ‘epistemic things’ of the laboratory. As Gilmore and Halliday show, authors used the concept of electricity to explain divine inspiration, sexual attraction, genius, embodied emotions, the poetic imagination, love and immortality (Halliday, , ; Gilmore, , ), and Otto analyses the allegorical meanings of electricity (Otto, ). In my own terminology, the concept of electricity was like a ‘floating concept’, i.e.…”