IN REMEMBRANCE--2023 AD


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Stanley Deser, noted for theoretical research on gravity, died April 21 at the age of 92. He was most famous for work with Arnowitt and Misner re-writing Einstein's theory in what is now known as "ADM" form. ADM formalism is often used in quantum gravity but is also very helpful for setting up numerical computations of general relativity. Among other honors, he was a member of the National Academy of Sciences and the American Academy of Arts and Sciences. NYT obit (paywalled)
 


Prominent Sudanese singer Shaden Gardood was killed in crossfire between the Sudanese army and the paramilitary Rapid Support Forces in Omdurman city Friday.
 

Fantasy Artist Russ Nicholson has passed

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