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It wasn't likely she ever would be. Hoddan scowled. Inside of an hour he'd made a hand-sized, five-watt, wave-guide projector of waves of eccentric form. In the beam of that projector, air became ionized. Air became a high-resistance conductor comparable to nichrome wire, when and where the projector sent its microwaves.

And men who have had their pants scorched off them are not apt to think too clearly. Hoddan felt a certain confidence increase in his mind. He'd worked the thing out very nicely. If ionization made air a high-resistance conductor, then an ionizing beam would make a high-resistance short between the power terminals of a stun-pistol. With the power a stun-pistol carried, that short would get hot.

"If you can trust me not to make deathrays, I'd like to make a generator of odd-shaped microwaves. They're described in textbooks. They ionize the air where they strike. That's all. They make air a high-resistance conductor. Nothing more than that."

But perhaps the most serious drawback lay in the high-resistance armature, based upon the highest scientific dictum of the time that in order to obtain the maximum amount of work from a machine, the internal resistance of the armature must equal the resistance of the exterior circuit, although the application of this principle entailed the useless expenditure of at least 50 per cent. of the applied energy.

In the face of much adverse criticism he had developed the essentials of the low-internal-resistance dynamo with high-resistance field, and many of the essential features of multiple-arc distribution, and in 1880 he built a small road at his laboratory at Menlo Park."

Its vibrations were broken by means of a telegraph key into long and short periods, representing Morse characters, which were transmitted inductively from the train circuit to the pole line or vice versa, and received by the operator at the other end through a high-resistance telephone receiver inserted in the secondary circuit of the induction-coil.

At sea the wire would run to one or more metal plates on the bottom of the vessel, where the earth connection would be made with the water. The high-resistance secondary circuit of an induction coil is located in circuit between the condensing surface and the ground.