In 1884, Angelo Moriondo of Turin, Italy, demonstrated the first working example of an espresso machine.
PERSULPHATE
Etymology
Noun
persulphate (plural persulphates)
Alternative spelling of persulfate
Source: Wiktionary
Per*sul"phate, n. (Chem.)
Definition: A sulphate of the peroxide of any base. [R.]
Source: Webster’s Unabridged Dictionary 1913 Edition
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16 January 2025
BOOK
(noun) a collection of rules or prescribed standards on the basis of which decisions are made; “they run things by the book around here”
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