Liquid metals are materials that remain in a liquid state at or near room temperature. The most well-known example is mercury, which is used in thermometers and barometers. Liquid metals can conduct electricity and heat efficiently, making them useful in various applications, including electronics and cooling systems. Another interesting aspect of liquid metals is their unique properties, such as low viscosity and high surface tension. These characteristics allow them to flow easily and form droplets. Researchers are exploring the potential of liquid metals in fields like robotics and soft materials, where their flexibility and adaptability can lead to innovative designs.