Carbon

(noun.) a copy made with carbon paper.

(noun.) an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds.

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• When the iron parts with its carbon it loses its fluidity and becomes plastic and coherent, and is formed into balls called _blooms_. Edward W. Byrn. 十九世纪发明进展.
• Although carbon dioxide is very injurious to health, both of the substances of which it is composed are necessary to life. 伯莎M.克拉克. 科学通论.
• The carbon being only slightly compressed will offer considerable resistance to the flow of current from the local battery, and therefore the signal on the local sounder will be weak. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• The two pointed pieces of hard conducting carbon used for the separated terminals constitute the voltaic arc light--a light only excelled in intense brilliancy by the sun itself. 威廉·亨利·杜利特. 世纪发明.
• But if carbon and zinc are used, a current is again produced, the zinc dissolving away as before, and bubbles collecting on the carbon plate. 伯莎M.克拉克. 科学通论.
• The poles of the electromagnet in the local circuit are hollowed out and filled up with carbon disks or powdered plumbago. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• We saw that carbon was what we wanted, and the next question was what kind of carbon. 鲁伯特·萨金特·荷兰. 历史性发明.
• The funny part of it was that I never thought in those days that a carbon filament would answer, because a fine hair of carbon was so sensitive to oxidation. 鲁伯特·萨金特·荷兰. 历史性发明.
• If steel was wanted a small amount of carbon, usually in the form of spiegeleisen, was introduced into the converter before the process was complete. 威廉·亨利·杜利特. 世纪发明.
• The oven filled with calcium carbide is then electrically heated with a carbon rod running through the center. 佚名. 神奇的知识之书.
• The advance that was brought about by Edison's carbon transmitter will be more apparent if we glance first at the state of the art of telephony prior to his invention. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Opening the grenades under water and collecting the gas that escaped it was found that the average amount of carbon dioxide contained was about one cubic inch per grenade. 威廉K.戴维. 智者、化学家和伟大医生的秘密.
• We see that the source of carbon dioxide is practically inexhaustible, coming as it does from every stove, furnace, and candle, and further with every breath of a living organism. 伯莎M.克拉克. 科学通论.
• Making carbon dioxide from marble and hydrochloric acid. 伯莎M.克拉克. 科学通论.
• This fact he utilized by the means which he has described, a lamp having a filamentary carbon burner in a nearly perfect vacuum. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• While the arcs with plain carbons are bluish-white, those with carbons containing calcium fluoride have a notable golden glow. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Metal tubes T T connected the conducting wires F F to the carbons. Edward W. Byrn. 十九世纪发明进展.
• With the best vacuum that he could then get by means of the ordinary air-pump, the carbons would last, at the most, only from ten to fifteen minutes in a state of incandescence. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Four forms of arc light with special carbons. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Edison was not satisfied with paper carbons. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Clock mechanism for thus regulating the feed was first employed, which served to automatically keep the carbons a definite distance apart, this being a necessary condition of the arc. Edward W. Byrn. 十九世纪发明进展.
• Brush adopted a three-wire system; and both obtained a uniform consumption of the carbons. 威廉·亨利·杜利特. 世纪发明.
• The great necessity for more durable carbons became a desideratum so urgent that the tireless inventor decided to commission another explorer to search the tropical jungles of the Orient. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.
• Edison also tried hard carbon, wood carbons, and almost every conceivable variety of paper carbon in like manner. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

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