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Acetaminophen
A common medicine used to relieve mild to moderate pain and reduce fever. Acetaminophen (N-acetyl-p-aminophenol), or paracetamol, is a white crystalline compound with the molecular formula C8H9NO2 (Fig. 1). It is a member of the aniline family of…
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Adaptive optics
Technologies to optimize the performance of optical systems wherein controllable optical elements maintain a sharply focused image in the presence of wavefront aberrations. The practical development of adaptive optics started in the late 1960s. Main…
Biography
Agassiz, (Jean) Louis Rodolphe (1807–1873)
Biography
Agnesi, Maria Gaetana (1718–1799)
Biography
Agricola, Georgius (1490–1555)
Biography
Alexander, Hattie Elizabeth (1901–1968)
Biography
Alfvén, Hannes Olof Gösta (1908–1995)
Biography
Alhazen, Abu Alī al-Hassan ibn al-Haytham (c. 965–1038)
Biography