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Updated: June 24, 2025
Among all the theories lately proposed, that of the ions has taken a preponderant place; ill understood at first by some, appearing somewhat singular, and in any case useless, to others, it met at its inception, in France at least, with only very moderate favour.
And there's bound to be some trick of refraction that'll help. It thins out at the edges now. That's how we get warning of it. It's refracted by ions in the air. That's why it isn't a completely tight beam. Ions in the air act like drops of mist; they refract sunshine and make rainbows after rain. And we got the smell-effect first. That proves there's refraction." He watched her face.
Out in orbit, three reunited Bunch members inflated and rigged their bubbs. For Nelsen it seemed an old, splendid feeling. They lashed the supplies from the trader rockets into great bundles that they could tow. Before the rockets began to descend, the trio of beautiful, fragile rings, pushed by ions streaming from their centers, started to accelerate.
The moon, like the earth, is exposed to the influx of the ions from the sun; but having no atmosphere, or almost none, to interfere with them, they descend directly upon her surface and charge her with an electric negative potential to a very high degree.
In the air, however, the screen is greatly helped by the fact that before the half-wave frequency is met in the ray-wedge, the molecular ray is buried in ions, leaving the ray screen little work to do. "Now your job is to design the apparatus in a form that machines can make automatically.
"It has been discovered that ions will flow directly through the membranes." "Ions?" I repeated. "What are ions?" "Travelers," he answered, smiling, "so named by Faraday from the Greek verb, io, to go. They are little positive and negative charges of electricity of which molecules are composed. You know some believe now that matter is really composed of electrical energy.
In the present case these positive ions are no doubt those that we again meet with in the canal rays. Professor Wien has shown that their mass is really, in fact, of the order of the mass of atoms. Although they are all formed of identical electrons, there may be various cathode rays, because the velocity is not exactly the same for all electrons.
It is then coiled on a frame and its rate of discharge measured by the electroscope. The radio-activity of the various rocks of our neighbourhood; this by direct measurement of the rock. The conductivity of the air, that is, the relative movement of ions in the air; by movement of air past charged surface.
We can also obtain other information regarding ions: we can ascertain, for instance, their velocities, and also get an idea of their order of magnitude.
The electrons, when they are propagated in a gas, can ionise the molecules of this gas and unite with the neutral atoms to form negative ions, while positive ions also appear.
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