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Scientific American Supplement, No. 360 (Nov 25, 1882)

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Author: Various Authors
Published: 1882
Language: English
Wordcount: 38,554 / 121 pg
Flesch-Kincaid Reading Ease: 53.4
LoC Categories: AP, Q
Downloads: 544 355
Genre: Periodical

exceedingly hard, acquiring a molecular contraction and a fineness of grain such that polishing gives it the appearance of polished nickel. Compressed steel, like tempered steel, acquires the coercitive force which enables it to absorb magnetism. This property should be studied in connection with its durability; experiments have already shown that there is no loss of magnetism at the expiration of three months. This compression has no analogue but tempering. Hammering and hardening modify the molecular state of metals, especially when they are practiced upon metal that is nearly cold, but the effect of hydraulic pressure is much greater. The phenomena which are produced in both methods of tempering may be interpreted in different ways, but it seems likely that there is a molecular approximation, an amorphism from which results the homogeneity that is due to the absence of crystallization. Being an operation which can be measured, it may be graduated and kept within limits which are prescribed in advance; dir



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L.L. Collins
When L.L. Collins isn't wrangling 25 preteens during her day job as a teacher, she writes heartfelt, emotionally charged romance novels. Books in which the heroes are not always alpha males and the heroines everything but perfect. In her book, Snared, Collins also addresses tough subjects such as mental health and foster care. As our author of the day Collins reveals why she chose to write about a shy rock star, her own experience with foster care and talks about her journey as an author.
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