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Updated: May 27, 2025
Carter, is pure carbon, crystallized under enormous heat and pressure in the bowels of the earth." "I am aware of that." "Charcoal and graphite are also pure carbon, but not in a crystallized condition," continued Pylotte. "If that condition could be imparted to the substances mentioned, we should have the artificial diamond." "How may that be done?" inquired Nick.
As for the hypothesis that meteoric stones, the 'moss-grown fragments of another world' may have brought life to the earth, I hardly know what to think of it." "Has life ever been found on a meteoric stone?" "Not that I know. Carbon, at all events in the state of graphite and diamond, has been got from them.
At the top of the stick of graphite is a metal cap carrying a knife-edge, on which rests a bent lever pressed down upon it by a light spring. A fine chain attached to the long arm of this lever is wound upon a small pulley; a larger pulley on the same axis has wound upon it a second chain, which actuates a third pulley on the axis of the indicating needle.
"Won't you sit down, Miss Baxter?" said Mr. Hardwick, with no trace of that anger in his voice which she had expected. "I have been waiting for you. You said you would be here at five, and I like punctuality. Without beating round the bush, I suppose I may take it for granted that the Evening Graphite is indebted to you for what it is pleased to call the Board of Public Construction scandal?"
I want to see whether we can make anything of this. Let me have a little graphite, will you?" The finger-print expert took an envelope from his pocket and handed it to the superintendent. From it Foyle scattered fine black powder on the hilt. A little cry of satisfaction came from his lips as he blew the stuff away in a little dark cloud. Those in the room crowded around.
I gnawed the wood quite from the pencil, leaving only the graphite core. With a bit of graphite a hand guided by the unerring insolence of elation may artistically damn all men and things. That I am inclined to believe I did; and I question whether Raphael or Michael Angelo upon whom I then looked as mere predecessors ever put more feeling per square foot into their mural masterpieces.
Stiff graphite pencils, making lines as hard and sharp as those in the faces of foreigners themselves, were to take the place of the soft charcoal flake whose stroke was of satin and young leaves.
Rocks of more yielding materials must often have been forced against others previously consolidated, and may thus by compression have acquired a new structure. A recent discovery may help us to comprehend how fine sediment derived from the detritus of rocks may be solidified by mere pressure. The graphite or "black lead" of commerce having become very scarce, Mr.
This graphite has been found especially useful in electrical work as for electrodes, while a more recent process enables a soft variety of graphite to be obtained which becomes a competitor of the natural material.
The aluminum may be obtained in the form of bauxite, and is produced in large rectangular iron pots with a thick carbon lining. The pot itself is the cathode, while large graphite rods suspended in the bath serve as the anodes.
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