The kall, according to researchers, is a stabilizing and universal resonance, perceived when sound surpasses the repetition of the seven conventional notes and blends with natural harmonics. “It is a ...

Previous correspondence on this topic refers to the different patterns of overtones that enable us to distinguish one instrument from another. This isn’t the only factor involved. Many years ago when ...

Both light and sound travel as waves, with characteristics that allow people with typical vision and hearing to perceive and categorize them when they reach their eyes and ears: “That’s a small red ...

With the decades-long, steady stream of holiday airings of the Julie Andrews-powered movie version of “The Sound of ...