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"I've got this beautiful panoramic three-dimensional painting of Mars based on Martian photos. It's 30 feet wide. You can pick out every pebble on the Martian landscape. And who'd have dreamed you could do that?"
- Arthur C. Clarke
 |
| Cavorite | ||
| An antigravity metal; when it cools, whatever it covers will be impervious to gravitational forces. |
The creation of an antigravity metal was somewhat unexpected, and therefore created quite a stir.
| On the 14th of October, 1899, this incredible substance was made!
Oddly enough, it was made at last by accident, when Mr. Cavor least expected it. He had fused together a number of metals and certain other things - I wish I knew the particulars now ! - and he intended to leave the mixture a week and then allow it to cool slowly. Unless he had miscalculated, the last stage in the combination would occur when the stuff sank to a temperature of 60 Fahr. But it chanced that, unknown to Cavor, dissension had arisen about the furnace tending. Gibbs, who had previously seen to this, had suddenly attempted to shift it to the man who had been a gardener, on the score that coal was soil, being dug, and therefore could not possibly fall within the province of a joiner; the man who had been a jobbing gardener alleged, however, that coal was a metallic or ore-like substance, let alone that he was cook. But Spargus insisted on Gibbs doing the coaling, seeing that he was a joiner and that coal is notoriously fossil wood. Consequently Gibbs ceased to replenish the furnace, and no one else did so, and Cavor was too much immersed in certain interesting problems concerning a Cavorite flying machine (neglecting the resistance of the air and one or two other points) to perceive that anything was wrong. And the premature birth of his invention took place just as he was coming across the field to my bungalow for our afternoon talk and tea. ..."You are quite clear that the stuff is opaque to gravitation, that it cuts off things from gravitating towards each other? " "Yes," said I. "Yes." "Well, so soon as it reached a temperature of 60 Fahr, and the process of its manufacture was complete, the air above it, the portions of roof and ceiling and floor above it ceased to have weight. I suppose you know - everybody knows nowadays - that, as a usual thing, the air has weight, that it presses on everything at the surface of the earth, presses in all directions, with a pressure of fourteen and a half pounds to the square inch? " "I know that," said I. " Go on." "I know that too," he remarked. " Only this shows you how useless knowledge is unless you apply it. You see, over our Cavorite this ceased to be the case, the air there ceased to exert any pressure, and the air round it and not over the Cavorite was exerting a pressure of fourteen pounds and a half to the square in upon this suddenly weightless air. Ah! you begin to see! The air all about the Cavorite crushed in upon the air above it with irresistible force. The air above the Cavorite was forced upward violently, the air that rushed in to replace it immediately lost weight, ceased to exert any pressure, followed suit, blew the ceiling through and the roof off. |
| Technovelgy from The First Men in the Moon,
by H.G. Wells. Published by Unknown in 1901 Additional resources -
|
Here's how the spacecraft worked:
The inner glass sphere can be air-tight, and, except for the manhole, continuous, and the steel sphere can be made in sections, each section capable of rolling up after the fashion of a roller blind. These can easily be worked by springs, and released and checked by electricity conveyed by platinum wires fused through the glass. All that is merely a question of detail. So you see, that except for the thickness of the blind rollers, the Cavorite exterior of the sphere will consist of windows or blinds, whichever you like to call them. Well, when all these windows or blinds are shut, no light, no heat, no gravitation, no radiant energy of any sort will get at the inside of the sphere, it will fly on through space in a straight line, as you say. But open a window, imagine one of the windows open. Then at once any heavy body that chances to be in that direction will attract us."
Compare to helium metal from In the Deep of Time (1879) by George Parsons Lathrop, apergy from Across the Zodiac (1880) by Percy Greg.
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More Ideas
and Technology from The First Men in the Moon
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and Technology by H.G. Wells
Tech news articles related to The First Men in the Moon
Tech news articles related to works by H.G. Wells
Cavorite-related
news articles:
- Mirrors For Gravitational Waves
| JAXA Int Ball 2 Coming Right Along As Star Wars Remote |
| Space Traffic Management (STM) Needed Now |
| Denmark Joins The 'Zero Debris Charter' To Clean Up Space |
| Starship Special Edition For Lunar Shuttle |
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'Do not waste your priceless company on the unappreciative folds of a sleep pod...'
'...so we've promised him a generous pension from the royalties.'
'Hocus-pocus religions and archaic weapons are no substitute for a good blaster at your side.'
'Oscar picked up a trowel. 'I'm the tool for the mortar,' the little trowel squeaked cheerfully.'
'... he waited for the robotrix attendant to finish fueling up his ship.'
The Roujin Z system provides care to fully bedridden patients - and then some!
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'
