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Updated: May 21, 2025
On the other hand, experiments made with sensitive thermopiles, in order to settle the question of emission of heat-rays from highly-heated gases, failed. Afterward, however, Dr. Siemens was convinced, by a quite simple experiment of a different kind, that his supposition was erroneous.
As the sun rose higher, Duncan ripped his pajama trousers in halves and fashioned them into two rude turbans. Soaked in sea-water they offset the heat-rays. "When I think of that dinner, I'm really angry," he complained, as he noted an anxious expression threatening to set on his wife's face. "And I want you to be with me when I settle with Dettmar.
If a man looks through the brilliant water of a tropical pool, he can sometimes see coloring the marvels at the bottom the blue that was on the sky and the green that was on the foliage of this detail. And the picture shimmered in the heat-rays of a new and remarkable sun. It was when the train bolted out into the open air that one knew that it was his own earth. Once train met train in a tunnel.
The generators of the Heat-Rays waved high, and the hissing beams smote down this way and that. The air was full of sound, a deafening and confusing conflict of noises the clangorous din of the Martians, the crash of falling houses, the thud of trees, fences, sheds flashing into flame, and the crackling and roaring of fire.
This heavy proportion of carbon-dioxide would cause the atmosphere to act as a glass-house over the surface of the earth, as it does still to some extent. Experiment has shown that an atmosphere containing much vapour and carbon-dioxide lets the heat-rays pass through when they are accompanied by strong light, but checks them when they are separated from the light.
"I can offer no other solution, sir," said the scientist. "It is at last evident that this man's power over ethereal vibrations extends to those forming heat-rays. If this is so, it follows that he can cut off all life by stopping all heat. If his threat is carried out, we can but look forward to a repetition on a large scale of the City Hall affair." The aged financier now spoke to Simmons.
Even "Tommy" knows this, and on a cold day will call a big Zulu servant by a name which implies that the Zulu's father and mother were never legally married. The Zulu will only smile dismally, and tell "Tommy" that he will pray for the salvation of his soul. Three days later, when the air is dancing in the heat-rays, if Mr.
The steady swing of the grasshopper's song like the wavering hum of a telegraph pole pitched in a high, shrill key came through the hot air on all sides, until it seemed to spring from the ground in answer to the heat-rays that beat upon it a response from the great dusty parched crust to the ceaseless throb of the heat-waves pulsing and splashing upon it, like the ripple and rattle of shingle stones at the rush of retreating tides.
This cumulative effect is due to the continuous reflection and radiation of heat from the clouds as well as from the vapour-laden strata of air in our lower atmosphere, which latter, though very transparent to the luminous and accompanying heat rays of the sun, are opaque to the dark heat-rays whether radiated or reflected from the earth's surface.
Sir John Herschel showed that heat-rays at the sun's surface must be 92,000 times as dense as when they reach the earth; but it by no means follows that either the surface emitting, or a body absorbing those heat-rays must be 92,000 times hotter than a body exposed here to the full power of the sun.
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