Power supply, an integral element of modern technology and life, plays a central role in making various devices and machines possible. From smartphones and home appliances to computers and industrial robots, once power sources are activated they begin their daily tasks of providing convenience, efficiency and research data for scientific experiments. We often take this aspect of modern life for granted but its importance can't be understated: start the power is so natural we almost take it for granted - yet this one simple action makes possible the wonders of modernity as well as everyday convenience and comfort!