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ABSTRACT THE night before last a lady of my family emptied a paper powder composed of 71/2 grains of carbonate of potash and 71/2 grains of carbonate of soda into a tumbler of what is called
_toughened glass_ less than half full of cold water. After stirring the mixture she drank the contents, leaving a silver tea-spoon in the tumbler, and then placed the empty tumbler on the
table by her side within perhaps a foot of a burning duplex lamp. About five minutes afterwards a sharp explosion occurred, which startled all in the room. We found the tumbler shattered
into fragments, the body of the glass ripped up, as it were, into several large, irregular-curved pieces, and the bottom of the tumbler broken into small pieces more resembling thick rough
ice than anything else. Query: Was the explosion caused by the inherent properties of the toughened glass, or by the contact of potash, soda, the silver spoon, and proximity to a lamp, the
heat from which was very slight, indeed scarcely perceptible to the hand at the spot where the tumbler stood? Access through your institution Buy or subscribe This is a preview of
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TAYLOR Authors * NOBLE TAYLOR View author publications You can also search for this author inPubMed Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE
THIS ARTICLE TAYLOR, N. Toughened Glass. _Nature_ 22, 241–242 (1880). https://doi.org/10.1038/022241e0 Download citation * Issue Date: 15 July 1880 * DOI: https://doi.org/10.1038/022241e0
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