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This is a characteristic of a weather target picked up on radars operating on different frequencies. I did check. I called the radar station and talked to the captain who was in charge of the crew the night the target had been picked up. The target looked the same on both scopes. This was one of the reasons it had been reported, the captain told me.
But it is sure as hell explosive when mixed with air. Naturally, something has to touch it off. Vaneski got real cute there. He drilled a hole in the power pack, which is supposed to be sealed off. All I'd have had to do would be to switch frequencies on my phone, and the spark would do the job blooie! "But that's exactly the sort of thing I was looking for.
Therefore the laboratory and all its neighborhood will be flooded with dangerous frequencies from the sun we are to visit, as well as with those from our own generators." "O. K., chief! All tight here. You say it's ten light-years to that star. How long's it going to take us to get there?" "About ten minutes.
Where only one vacuum tube is used for producing both frequencies you need only a regenerative, or feed-back receptor; then you can tune the aerial wire system to the incoming waves and tune the closed circuit of the secondary coil so that it will be out of step with the former by 1,000 oscillations per second, more or less, the exact number does not matter in the least.
With such high frequencies the inertia of the particles would come into play. As the brush, or flame, would gain rigidity in virtue of the inertia of the particles, the exchange of the latter would be prevented.
To produce these beats a receptor can use: a single vacuum tube for setting up oscillations of both frequencies when it is called an autodyne, or self-heterodyne receptor, or a separate vacuum tube for setting up the oscillations for the second circuit when it is called a heterodyne receptor. The Autodyne, or Self-Heterodyne Receiving Set.
There is only a little over half an octave that the eye can appreciate as light, and then all is darkness; but we can still go on further by the help of Science: beyond the violet we have the actinic or chemical rays, which are used in photography, and which enable us to trace the frequencies for a further two octaves.
There were frequencies of other values, which would be selectively absorbed by this material and that. There were laterally and circularly polarized beams. When they bounced back, they would bring a surprising amount of information. They returned. They did bring back news. The thing that had registered as a larger lump in a meteor-swarm was not a meteor at all.
If we analyse our sense of sight, we find that the only impression made on our bodies by external objects is the image formed upon the retina; we have no cognisance of the separate electro-magnetic rills forming that image, which, reflected from all parts of an object, fall upon the eye at different angles, constituting form, and with different frequencies giving colour to that image; that image is only formed when we turn our eyes in the right direction to allow those rills to enter; and, whereas those rills are incessantly beating on the outside of our sense organ when the eyelid is closed, they can make no impression unless we allow them to enter by raising that shutter.
Now what with these frequencies and potentials occurs in an exhausted tube occurs in the lightning discharges at ordinary pressure. We only need remember one of the facts arrived at in the course of these investigations, namely, that to impulses of very high frequency the gas at ordinary pressure behaves much in the same manner as though it were at moderately low pressure.
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