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Waterston as their independent author in this country. The meteoric, or "dynamical," theory of solar sustentation was expounded by him before the British Association in 1853. It was developed with his usual ability by Lord Kelvin, in the following year. The inflow of meteorites, he remarked, "is the only one of all conceivable causes of solar heat which we know to exist from independent evidence."
So she finally said to herself "I'll tak' my ain road, and I'll ne'er look his road, and when it will be the right time, the twa roads will meet again." As the summer advanced there was less work to do, and she frequently was at home in sufficient time to stroll along Kelvin side, or visit the Botanic Gardens. Inland scenery, trees, and, above all things, flowers, greatly delighted her.
But now we are all beginning to call these inductive phenomena 'etheric." With which testimony from the great Kelvin as to his priority in determining the vital fact, and with the evidence that as early as 1875 he built apparatus that demonstrated the fact, Edison is probably quite content.
At first sight this explanation seemed a little puzzling to many laymen and some experts, for it seemed to imply, as Lord Kelvin pointed out, that the sun contracts because it is getting cooler, and gains heat because it contracts. But this feat is not really as paradoxical as it seems, for it is not implied that there is any real gain of heat in the sun's mass as a whole, but quite the reverse.
"Perhaps the fault is in the asteroid," suggested Professor Sylvanus P. Thompson. "Quite so," exclaimed Lord Kelvin, a look of sudden comprehension overspreading his features. "No doubt it is the internal constitution of the asteroid which is the cause of the anomaly. We must look into that. Let me see? This gentleman's weight is three and one-half times as great as it ought to be.
The theory of the connection is indeed far from clear. Lord Kelvin, in 1892, pronounced against the possibility of any direct magnetic action by the sun upon the earth, on the ground of its involving an extravagant output of energy; but the fact is unquestionable that in Professor Bigelow's words "abnormal agitations affect the sun and the earth as a whole and at the same time."
Others have conjectured that they are wanderers in space, of unknown origin, which the earth encounters as it journeys on, and Lord Kelvin made a suggestion which has become classic because of its imaginative reach viz., that the first germs of life may have been brought to the earth by one of these bodies, ``a fragment of an exploded world.
The venerable Lord Kelvin, who, notwithstanding his age, and his pacific disposition, proper to a man of science, had behaved with the courage and coolness of a veteran in every crisis; Monsieur Moissan, the eminent chemist; Professor Sylvanus P. Thompson, and the Heidelberg professor, to whom we all felt under special obligations because he had opened to our comprehension the charming lips of Aina all these had survived, and were about to return with us to the earth.
A practical tribe, the Wealdians! The ships are ready to take off as soon as they're warmed up inside. A half-degree sun doesn't radiate heat enough to keep a ship warm, when the rest of the cosmos is effectively near zero Kelvin. Here, point the heaters like this." He adjusted the radiant-heat dispensers. The fog disappeared where their beams played.
I shall have something special to call your minds to on this point presently. Bear in mind also that the Egyptians knew sciences, of which today, despite all our advantages, we are profoundly ignorant. Acoustics, for instance, an exact science with the builders of the temples of Karnak, of Luxor, of the Pyramids, is today a mystery to Bell, and Kelvin, and Edison, and Marconi.
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