A manual of electricity, magnetism and meteorology (1844)
Lardner, Dionysius, 1793-1859, Walker, Charles Vincent, 1812-1882 · London Longman, Brown, Green & Longmans · leaf 545
lating round it, is termed an Fig. 280. electro-magnet {fig.280.).The lifting power of suchmagnets is enormous, espe-cially when large quantitiesof electricity are made to cir-culate through stout wires.The powers of larger in-struments now constructedfor exhibition in public insti-tutions, is… … CHAP. VII. ELECTRO-MAGNETIC INDUCTION. 509 vations of Colonel Sabine at Woolwich. It was exhi-bited at a lecture of his before the Royal Institution,on June 10. 1843. The helix is 27 inches long by21 inches internal diameter: it has four coils of No. 7»copper wire covered with tape ; their lengths…
Atmospheric electricity · Electricity -- Early works to 1850 · Magnetism
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
