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Though Pelouze made no discovery of outstanding importance, he was a busy investigator, his work including researches on salicin, on beetroot sugar, on various organic acids (gallic, malic, tartaric, butyric, lactic, etc.), on oenanthic ether (with Liebig), on the nitrosulphates, on guncotton, and on the composition and manufacture of glass. [2]
Bilateral letter scale, collections of the Maison Losseau. 19th Century letter scale used at the Mangōnui Post Office. A letter scale is a weighing scale used for weighing letters in order to determine the correct amount of postage. Until the 1990s most letter scales were mechanical, but today electronic scales are the most common.
A Digital Postmark (DPM) is a technology that applies a trusted time stamp issued by a postal operator to an electronic document, validates electronic signatures, and stores and archives all non-repudiation data needed to support a potential court challenge. It guarantees the certainty of date and time of the postmarking.
Taking precautions to protect yourself from a quartet of infectious diseases can lessen your odds of starting off 2025 sick.
Elon Musk's Department of Government Efficiency has sparked concerns within the intelligence community after it posted information about an agency that oversees U.S. intelligence satellites to its ...
Stamps.com allows users to print official United States Postal Service stamps and shipping labels for a monthly subscription fee of $19.99. [30] Stamps.com sends customers a digital scale to weigh letters and packages to ensure the correct amount of postage is applied to the piece of mail.
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