Nature Publishing Group, publisher of Nature, and other science journals and reference works
my account e-alerts subscribe register
Monday 02 January 2017
Journal Home
Current Issue
Download PDF
Export citation
Export references
Send to a friend
More articles like this

Letters to Nature
Nature 295, 311 - 312 (28 January 1982); doi:10.1038/295311a0

Electromagnetic jet-propulsion in the direction of current flow

Peter Graneau

MIT Francis Bitter National Magnet Laboratory, Cambridge, Massachusetts 02139, USA

Two simple experiments are reported here which demonstrate jet-propulsion in the direction of current flow between liquid and solid conductors. The observed effects seem to conform with Ampere's force-law, but no qualitative nor quantitative explanation has so far been found in terms of lorentzian forces and associated magnetohydrodynamics (MHD) phenomena. This research forms part of a wider investigation of the Ampere–Neumann electrodynamics and its relationship to modern science and technology.



1. Ampere, A. M. Memoires sur l'Electrodynamic Vol. 1, 25 (Gauthier-Villars, Paris, 1885).
2. Bush, V. J. Math. Phys. 5, 129 (1926).
3. Cleveland, F. F. Phil. Mag. 25, 416 (1936).
4. O'Rahilly, A. Electromagnetic Theory Vol. 1, 102 (Dover, New York, 1965).
5. Whittaker, E. History of the Theories of Aether and Electricity Vol. 1, 84 (Thomas Nelson, London, 1951).
6. Robertson, I. A. Phil. Mag. 36, 32 (1945).
7. Rosser, W. G. V. Contemp. Phys. 3, 28 (1961).
8. Neumann, F. E. Vorlesungen ueber Elektrische Stroeme, 102 (Teubner, Leipzig, 1884).

© 1982 Nature Publishing Group
Privacy Policy