Tempering Agent

Some articles on agent, tempering agent:

Edison Records - Materials and Process Used To Manufacture Cylinder Records
... acetate of alumina and stearic acid with sodium hydroxide added as a saponifying agent ... Problems arose, however, since there was no tempering agent and hot weather caused these records to decompose ... The next cause of the problem is that all stearic acid without a tempering agent takes on moisture, and after many experiments it was found that Ceresine was ideal ...

Famous quotes containing the words agent and/or tempering:

    The average American is a good sport, plays by the rules. But this war is no game. And no secret agent is a hero or a good sport—that is, no living agent.
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    Despots play their part in the works of thinkers. Fettered words are terrible words. The writer doubles and trebles the power of his writing when a ruler imposes silence on the people. Something emerges from that enforced silence, a mysterious fullness which filters through and becomes steely in the thought. Repression in history leads to conciseness in the historian, and the rocklike hardness of much celebrated prose is due to the tempering of the tyrant.
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