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Updated: May 21, 2025
The meanest mathematician in Spaceland will readily believe me when I assert that the problems of life, which present themselves to the well-educated when they are themselves in motion, rotating, advancing or retreating, and at the same time attempting to discriminate by the sense of sight between a number of Polygons of high rank moving in different directions, as for example in a ball-room or conversazione must be of a nature to task the angularity of the most intellectual, and amply justify the rich endowments of the Learned Professors of Geometry, both Static and Kinetic, in the illustrious University of Wentbridge, where the Science and Art of Sight Recognition are regularly taught to large classes of the ELITE of the States.
The conditions upon which the working of a well conceived dynamo machine must depend were next alluded to, and it was demonstrated that when losses by unnecessary wire resistance, by Foucault currents, and by induced currents in the rotating armature were avoided, as much as 90 per cent., or even more, of the power communicated to the machine was realized in the form of electric energy, and that vice versa the reconversion of electric into mechanical energy could be accomplished with similarly small loss.
But preponderating momentum in one direction, having caused rotation of the medium in that direction, the rotating medium must in its turn gradually arrest such flocculi as are moving in opposition, and impress its own motion upon them; and thus there will ultimately be formed a rotating medium with suspended flocculi partaking of its motion, while they move in converging spirals towards the common centre of gravity.
Two different methods are presented in which a rotating and contracting nebula may shape itself into a stellar or planetary system. The first is that described by Laplace, and generally accepted as the probable manner of origin of the solar system viz., the separation of rings from the condensing mass, and the subsequent transformation of the rings into planets.
In this respect there is no difference between the first primitive attempts made by Galileo and the Academicians, and the ingeniously devised experiments of the later observers, whether they operate with a toothed wheel or a rotating mirror.
The light sprang through the banks of rotating prisms, intensified up the scale until, with a vague, almost invisible beam, it left the last swaying mirror and leaped through our overhead dome and into space. "Enough," said Grantline. "Switch it off. We'll let it go at that for now." It seemed that every man in the room had been holding his breath in the chill darkness.
Now whenever any pair of electrodes on the rotating disk are in a line with the pair of fixed electrodes a spark will take place, hence the pitch of the note depends on the speed of the motor driving the disk. This kind of a rotary spark-gap is called non-synchronous and it is generally used where a 60 cycle alternating current is available but it will work with other higher frequencies.
Captain Nugent's views concerning sailormen were well known in Sunwich, and two of the men present had served under him. He went forward, the centre of an attentive and rotating circle, and, sadly out of breath, was bestowed in the forecastle and urged to listen to reason. For the remainder of the morning he made no sign.
Swinburne remarked that this could be done by making the rotating magnets a star-shaped mass of iron. Sir W. Thomson thought Mr. Swinburne's estimate of the loss in the Deptford mains was rather high. He himself had calculated the power spent in charging them, and found it to be about 16 horse power, and although a considerable fraction might be lost, it would not amount to nine-sixteenths.
He knew that Kwannon was the second planet of the Gettler Beta system, 23,000 miles in circumference, rotating on its axis once in 22.8 Galactic Standard hours and making an orbital circuit around Gettler Beta once in 372.06 axial days, and that Alpha was an M-class pulsating variable with an average period of four hundred days, and that Beta orbited around it in a long elipse every ninety years.
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