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This was the first compound photocathode material, developed in 1929.
Some Related Sentences
was and first
But her prettiness was what he had noticed first, and all the other things had come afterward: cruelty, meanness, self-will.
There was an artificial lake just out of sight in the first stand of trees, fed by a half dozen springs that popped out of the ground above the hillside orchard.
The first part of the road was steep, but it leveled off after the second bend and curled gradually into the valley.
No one was behind it, but in the rear wall of the office I noticed, for the first time, a door which had been left partially open.
The herd was watered and then thrown onto a broad grass flat which was to be the first night's bedground.
Once again, Tom Horn was the first and most likely suspect, and he was brought in for questioning immediately.
Even the knowledge that she was losing another boy, as a mother always does when a marriage is made, did not prevent her from having the first carefree, dreamless sleep that she had known since they dropped down the canyon and into Bear Valley, way, way back there when they were crossing those other mountains.
Stevens was grunting over the last empty pocket when Russ abruptly rose and lunged toward Carmer's hat, which had tumbled half-a-dozen feet away when he first fell.
The Indian's arm whipped sidewise -- there was a flash of amber and froth, the crash of the bottle shattering against the side of the first car.
Hell, I gave him the first decent job he ever had, six, seven -- how many years ago was it, Rob ''??
School began in August, the hottest part of the year, and for the first few days Miss Langford was very lenient with the children, letting them play a lot and the new ones sort of get acquainted with one another.
It was just as well that the ignorant Dandy enjoyed himself to the hilt that first evening, for the room was to become his prison cell.
`` Bastards '', he would say, `` all I did was put a beat to that Vivaldi stuff, and the first chair clobbered me ''!!
In 1961 the first important legislative victory of the Kennedy Administration came when the principle of national responsibility for local economic distress won out over a `` state's-responsibility '' proposal -- provision was made for payment for unemployment relief by nation-wide taxation rather than by a levy only on those states afflicted with manpower surplus.
The first systematic thinking about this Pandora's box within Pandora's boxes was done four years ago by Fred Ikle, a frail, meek-mannered Swiss-born sociologist.
His collaboration with Washington, begun when he was the general's aide during the Revolution, was resumed when he entered the first Cabinet as Secretary of the Treasury.
was and compound
For example, the creation of argon fluorohydride ( HArF ), a marginally stable compound of argon with fluorine and hydrogen, was reported by researchers at the University of Helsinki in 2000.
In 1806, the French chemists Louis-Nicolas Vauquelin and Pierre Jean Robiquet isolated a compound in asparagus that was subsequently named asparagine, the first amino acid to be discovered.
Known to the Iranians by the Pahlavi compound word kah-ruba ( from kah “ straw ” plus rubay “ attract, snatch ,” referring to its electrical properties ), which entered Arabic as kahraba ' or kahraba, it too was called amber in Europe ( Old French and Middle English ambre ).
After this initial chemotherapeutic compound proved effective, others pursued similar lines of inquiry, but it was not until in 1928 that Alexander Fleming observed antibiosis against bacteria by a fungus of the genus Penicillium.
Fleming postulated the effect was mediated by an antibacterial compound named penicillin, and that its antibacterial properties could be exploited for chemotherapy.
The 2, 4, 5-T used to produce Agent Orange was later discovered to be contaminated with 2, 3, 7, 8-tetrachlorodibenzodioxin ( TCDD ), an extremely toxic dioxin compound.
According to Ferdinand Bohlmann, the first naturally occurring acetylenic compound, dehydromatricaria ester, was isolated from an Artemisia species in 1826.
The Throwing lance usually consisted of three parts: a wooden shaft, a bone ring or belt, and the compound head that was made with a barbed bonehead and a stone tip.
The length of the compound head was equivalent to the distance between the planes of a man ’ s chest to his back.
The word may be a compound containing the Old English adjective brytten ( from the verb breotan meaning ' to break ' or ' to disperse '), an element also found in the terms bryten rice (' kingdom '), bryten-grund (' the wide expanse of the earth ') and bryten cyning (' king whose authority was widely extended ').
The most common compound of chlorine, sodium chloride, has been known since ancient times ; however, around 1630, chlorine gas was obtained by the Belgian chemist and physician Jan Baptist van Helmont.
The metal was named after the Latin word for calamine, since the metal was found in this zinc compound.
Formerly the name " carbohydrate " was used in chemistry for any compound with the formula C < sub > m </ sub > ( H < sub > 2 </ sub > O ) < sub > n </ sub >.
The first modern chemotherapeutic agent was arsphenamine, an arsenic compound discovered in 1909 and used to treat syphilis.
The rapid adoption of the compound crank can be traced in the works of the Anonymous of the Hussite Wars, an unknown German engineer writing on the state of the military technology of his day: first, the connecting-rod, applied to cranks, reappeared, second, double compound cranks also began to be equipped with connecting-rods and third, the flywheel was employed for these cranks to get them over the ' dead-spot '.
The ratio between A and B in the vapor will be different from the ratio in the liquid: the ratio in the liquid will be determined by how the original mixture was prepared, while the ratio in the vapor will be enriched in the more volatile compound, A ( due to Raoult's Law, see above ).
In The Song the man who served him as his closest adviser was his vassal and kinsman Álvar Fáñez " Minaya " ( meaning " My brother ", a compound word of Spanish possessive Mi ( My ) and Anaia, the basque word for brother ), although the historical Álvar Fáñez remained in Castile with Alfonso VI.
Thus the foundation was laid of the doctrine of compound radicals, a doctrine which had a profound influence on the development of chemistry.
Soddy wrote that financial debts grew exponentially at compound interest but the real economy was based on exhaustible stocks of fossil fuels.