S. P. L. Sørensen
Danish chemist, inventor of pH scale
Danish chemist, inventor of pH scale
1939
87 years ago — 71 years old
Scientists & Innovators
Denmark
Contributed significantly to the field of chemistry, particularly in the development of the pH scale, which quantitatively measures acidity and alkalinity in solutions. Also worked on various aspects of equilibrium and thermodynamics. Published numerous papers in chemistry that provided foundational knowledge for future research in the field. Held positions at various universities, influencing generations of chemists. The pH scale remains a vital tool in chemistry and related sciences.
Developed the pH scale
Contributed to thermodynamics
Ruled as the Emperor of the Tang Dynasty from 756 to 779. Ascended to the throne during a period of internal turmoil and governmental challenges. Implemented policies to stabilize the empire and restore order following the An Lushan Rebellion. Focused on re-establishing imperial authority and promoting regional governance. Introduced reforms in taxation and land management, which aimed to alleviate the burdens on peasants and enhance agricultural productivity. His reign marked a significant phase in Tang history, marking a transition towards greater stability and economic recovery.
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