 Hello and welcome back to another episode of Physics Partner. In this episode, we will explore the concept of cladney figures and we will dive into the rich history behind it and even discuss its real life applications that continue to shape our world. Cladney figures refers to the mesmerizing patterns that form on a surface when a bow scraps the edge of a flat plate covered with a thin layer of sand or salt. These patterns, often resembling intricate geometric shapes, are formed due to the vibrations created by the sound waves passing through the plate. These vibrations cause the sand or salt to move, create these fascinating formations. To understand cladney figures better, we need to delve into their history. Ernest Cladney, a German physicist and musician of the 18th century, is credited with their discovery. Cladney not only uncovered the phenomenon but also developed intricate methods to visualize sound vibrations, leading to significant advances in our understanding of acoustics. Cladney figures have practical applications as well. For example, violin makers have long used cladney figures to shape the critical front and back plates of the instrument's resonant box. Engineers meticulously study cladney figures to understand how sound waves interact with different material, allowing them to optimize speaker designs for better sound quality and dispersion. Cladney figures also find their place in the realm of architectural acoustics. By employing these patterns, experts can shape concert halls and auditoriums in a way that minimizes aqueous, enhances sound projection and create an immersive experience for the audience. The beautiful harmonic patterns seen in cladney figures are an essential tool for fine tuning the acoustics of these spaces. In conclusion, cladney figures have captivated scientists, musicians and architects alike with their mesmerizing patterns and profound implications.