Author: Riyal Monga

You enter a room for the first time, yet have a sudden sense that you have been there before. You know the setting is new, so why does it feel familiar? This experience is called déjà vu, French for “already seen.” It is a feeling of familiarity that conflicts with recognizing the situation as new.…

Press two neighbouring piano keys together, and the combination may sound unpleasant. Does that make it noise rather than music? To understand this distinction, we need to look at how sound is structured, how the brain processes it, and how our experiences shape what we hear. While the physical properties of sound alone cannot define…