A Beginner's View of Our Electric Universe - New
A Beginner's View of Our Electric Universe - New
A Beginner's View of Our Electric Universe - New
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As development progressed in radio astronomy, due to encouragement from the discovery <strong>of</strong> a whole spectrum<br />
<strong>of</strong> radio waves by the first space probes with appropriate sensing equipment, an even greater focus was applied<br />
to the activity as its truly huge potential began to be appreciated. Previous to all <strong>of</strong> this, radio waves were not<br />
even suspected to exist out there because space was thought by most to be totally empty. This aspect was what<br />
Reber had always thought was not the case due to his own science background and his knowledge that our upper<br />
ionised atmosphere would have kept certain radio waves from us by blocking or attenuating most <strong>of</strong> them from<br />
being detected by the relatively crude equipment we had in those days. This was what Reber saw as his personal<br />
challenge, so, in the spirit <strong>of</strong> radio amateurs everywhere, he got down to learning more about and proving the<br />
correctness <strong>of</strong> his ideas. The important things to note for our purposes are that radio waves can be blocked by<br />
ionised plasma; that plasma surrounding all bodies in space will do precisely the same things that we know it<br />
does with Earth and that the properties <strong>of</strong> these plasma barriers can change depending on the density <strong>of</strong> charged<br />
particles present at any point in time.<br />
I briefly described this electric (electrostatic) barrier when I mentioned in chapter five the man who discovered<br />
it, Irving Langmuir, who also gave it the more commonly used label <strong>of</strong> Double Layer or DL. These DLs<br />
will exist between all charged bodies and between those bodies and the plasma environment <strong>of</strong> space. The<br />
presence <strong>of</strong> DLs as regions where voltages <strong>of</strong> <strong>of</strong>ten enormous value are separated from each other, sets the scene<br />
for powerful electrical interaction to take place, should the difference between the voltages involved become<br />
extreme. This is the case between the positive plasma environment <strong>of</strong> the Sun and that <strong>of</strong> Earth’s more negative<br />
plasmasphere. It is also the case between the solar plasma and the significant negative charge possessed by<br />
comets as they travel in their eccentric journeys around the Sun. (We shall be looking closely at comets shortly.)<br />
Think many millions and on a galactic scale, even billions <strong>of</strong> volts <strong>of</strong> difference here. DLs are very important<br />
indeed, so keep them in mind [6-19] .<br />
We learned previously that electric current flow in a conductor<br />
forms an associated magnetic field around it. Where this happens<br />
with plasma as the conductor, the magnetic field constricts the<br />
cross-section <strong>of</strong> the plasma into filaments that entwine in the<br />
pairs we call Birkeland currents [6-20] . The magnetic fields that<br />
hold Birkeland currents together cannot be observed but the<br />
filaments inside can be detected due to the EM radiation they<br />
emit. We said before that plasma is not a perfect conductor;<br />
this means that when current flows within a plasma filament<br />
some energy will be dissipated (lost) in the form <strong>of</strong> heat, radio<br />
waves and X-ray radiation.<br />
The magnetic forces that keep Birkeland currents together © author<br />
10 | The <strong>Electric</strong> <strong>Universe</strong> answers I see