The video that I watched was about mirrors. Mirrors actually start out as clear glass. Mirrors are not tensile and they are not compressive either. Mirrors are not ductile. They might have some malleable strength but they will break eventually since they start out as glass. Mirrors are not resilient and they cant be molded either. Mirrors have low formability, but they can be cut into different shapes. Mirrors can eventually rust so they have high corrosion. Finally, mirrors are not acoustic or sonorous.