Recent news and analysis on Physics
Physics news covering particle physics, CERN discoveries, theoretical physics, quantum mechanics, and breakthroughs in fundamental science.
Researchers have identified a specific crystal structure using calcium fluoride doped with thorium-229 to enable ultra-accurate nuclear clocks. This method shields the clock from interference, potentially making atomic clocks ten times more precise than current electron-based models.
The article explains that whale calls appearing to exceed the speed of sound are actually caused by wave interference between direct signals and surface echoes. This phenomenon, observed near Massachusetts, aligns with predictions from Einstein's special relativity rather than violating physical laws.