Word: complex
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This was not new, for natural "green-sands" and artificial zeolites have long been used for such softening. But a slightly more complex resin of the same type proved able to draw even sodium atoms out of solution, replace them with hydrogen. This merely substituted acid for salt, but still another resin, made with amines instead of phenol, extracted the acid intact, leaving pure water. Both resins were gradually used up but could be revived by reverse treatment with stronger solutions...
...crash when one of the plane's engines conked out at Mitchel Field, N.Y. Before pilots learned to bail out by diving the plane and somersaulting forward, some had their legs sliced off by the P-38's tailpiece when they jumped. In high altitudes the complex electric system went haywire and pilots considered themselves lucky if they got home on one engine. Veteran pilots shook their heads. "Nothing would ever make it work," said they...
...power, leaving openings for thrusts by a suddenly unveiled major attack in another direction. Battle Checkers and Pacific Defense are post-Pearl Harbor games much advertised. The weakness of the first is that it is too simple and too brief; of the second that the rules are enormously complex and frustratingly detailed...
...placards, and every influential newspaper in the land has approved it at least in principle. Even in the Conservative "Times" war dispatches have been shoved back between the ads for Bovril and Player's Navy Cut. His Majesty's Stationery Office is swamped with requests for copies of the complex 300,000 word text Goebbel's propaganda mill has been forced by skillful B.B.C. publicity to ridicule rather than ignore...
...tough job to write readable, interesting cases, while distributing the clues in a logical and subtle manner. Particularly complex is the problem of disclosing the identity of the company involved. There was one episode where the installation of a bonus system in a factory had been delayed seven years because the English foreman knew he would be unable to explain to his wife why he brought home different amounts of pay each week. Here, the personality of the foreman was the key to the case; yet the instance would have seemed too fantastic to be true, and might have revealed...