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1 ч 39 мин, 1 янв 1909 г. - German chemists Fritz Haber and Zygmunt Klemensiewicz develop the glass electrode, very precise measurements of acidity.

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20th Century

ByRafelle Marie Timog Allego

10 фев 2018

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1 ч 39 мин, 1 янв 1909 г.

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~ 115 г назад

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