Aug 27 (Reuters) - British oil major Shell (SHEL.L), opens new tab has ended negotiations to sell its stake in Germany's ‌Russia-linked Schwedt refinery to Polish energy group Unimot (UNTP.WA), opens ...

By expanding the Gaussian beam, the force distribution gradually approaches centrosymmetry about the coordinate origin. Notably, when the beam is expanded to d = 60 mm, the force distribution becomes ...

What is heat, and what is useful work if a machine consists only of an atom and light particles? In modern quantum technologies, this kind of question connects thermodynamics with quantum physics.