THE Mossbauer effect has been used to obtain structural information on ferric oxide supported on silica and on alumina 1–3; the experimental conditions under which these studies were carried out did ...

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The study of relativistic effects in gravitational fields remains at the forefront of physics research, refining our comprehension of space‐time and its intricate interplay with matter. Notably, ...

Invisible nuclei Acoustically induced transparency allows gamma rays to travel through a sample of otherwise absorbent iron. (Courtesy: iStock/Andrey Prokhorov) Iron nuclei can be made transparent to ...