Fluids moving through pipes lose energy to friction along the walls. Collisions, defects, and random motion steadily break ...
Physicists at TU Wien have created an ultracold quantum gas where both energy and mass flow without any measurable loss, a result that defies the standard expectation that interacting quantum systems ...
In the wake of bombshell findings that suggest dark energy might be weakening as the universe expands, physicists are considering replacing the standard cosmological model of the universe with exotic ...