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Updated: May 21, 2025
Here he found the temperature actually higher than in any part of the visible spectrum. By this important observation, he proved that the sun emitted heat-rays which are entirely unfit for the purposes of vision. The subject was subsequently taken up by Seebeck, Melloni, Müller, and others, and within the last few years it has been found capable of unexpected expansions and applications.
"Looking us over," Grantline commented. "I hope they like what they see." I knew that he did not feel the bravado that was in his tone. We had nothing but small hand weapons: heat-rays, electronic projectors, and bullet projectors. All for very short range fighting. If Miko had not known that before, he could at least make a good guess at it after the careful zed-ray inspection.
For a second, the heat-rays and levitations entered his head but none of the symbols fitted such a branch of physical development. What had been going on here and why had the machines been removed so recently that their traces still looked fresh? He shook his head and froze, as a key turned in the lock. There was no time for flight.
"I don't know, sir," she replied reverently. "Why, gold has been melted in four seconds, silver in three, and steel in ten, under the mere influence of the sun's heat-rays, concentrated by a lens" she shivered, and I magnanimously withheld my hand. "If this hypothesis should prove untenable," I continued gently, "we may assume spontaneous ignition, produced by chemical combination.
Indeed, the horses were in a sheet of lather almost immediately, and the air seemed fairly thick with the heat-rays, and absolutely breathless. Just as we got to the bluff overlooking the Big Sugar Creek, the sun set. "'I wish we were on the other side of the creek, I know, said my brother-in-law. "'Why so? said I; 'this part of the country is perfectly safe, is it not?
Neither is the composition of the Black Smoke known, which the Martians used with such deadly effect, and the generator of the Heat-Rays remains a puzzle. The terrible disasters at the Ealing and South Kensington laboratories have disinclined analysts for further investigations upon the latter.
No rescue ship came from Earth. We had ceased our efforts to signal, for we needed all our power to maintain ourselves. The camp would be in a state of siege before long. That was the best we could hope for. We had a few short-range weapons, such as Bensons, heat-rays and projectors. A few hundred feet of effective range was the most any of them could obtain.
The light from a candle, concentrated by a lens and passing through a sheet of glass which would intercept most of the heat-rays, generally caused a much more rapid retreat than did the heated poker. Worms are sensitive to a low temperature, as may be inferred from their not coming out of their burrows during a frost. Worms do not possess any sense of hearing.
Yes, I know. But they're intelligent things, and they won't hunt us down if they have all they want, and think we're just harmless vermin." The artilleryman paused and laid a brown hand upon my arm. "After all, it may not be so much we may have to learn before Just imagine this: four or five of their fighting machines suddenly starting off Heat-Rays right and left, and not a Martian in 'em.
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