When “exploded” electrically, the energy transfer into thin metallic wires is hindered by an MHD-instability of the type m = O. The development of this instability can be delayed by external magnetic fields or by the use of high potential at the terminals of the wire; locally very high temperatures are thus obtained. If conductive liquid threads are exploded which contain much deuterium, d, d-reactions are observed at particle densities higher than 1023 per cm3• After an explosion, the liquid thread can be replaced within milliseconds and hence the way for a periodically working machine is open. It looks as if the development of the instability is essential for the local increase of density and temperature leading to the nuclear reactions.
