Superconductors are materials that have the ability to conduct electricity without any resistance, allowing for the flow of current with zero loss of energy. This unique property is achieved when the material is cooled to a critical temperature, below which it exhibits superconductivity. Superconductors have many potential applications in various fields such as medicine, energy, and transportation due to their ability to carry large amounts of current without any energy loss. Researchers are constantly exploring new materials and techniques to increase the critical temperature at which superconductivity occurs and improve the practicality and efficiency of superconducting technologies.