Free electrons and positive ions can however appear if the gas is subject to an electricfield of strong intensity, to sufficiently high temperatures, to a bombardment particles or to a very intense electromagnetic field. When ionization is so important that the number of electrons per unit of volume is comparable with that of the neutral molecules, the gas becomes a plasma, which is a very conducting fluid
He demonstrated that electric and magnetic fields are propagated in space in the form of waves... Or an electricfield?... However, Onera researchers have successfully developed a system to visualize electromagnetic fields (combining an electricfield and a magnetic field)... A first: the simultaneous visualization of the profiles of the electricfield (proportional to the voltage, below) and surface magnetic field (proportional to the current, above), in phase opposition, as the theory predicts
Viewing and quantification of radiation near a mobile phone (distances are in millimeters and the electricfield intensities are not representative of the normal operation of a telephone. The process is simple in its principle and implementation
