Inventions are new devices, methods, or processes created to solve problems or improve existing solutions. They can range from simple tools, like the wheel, to complex technologies, such as the internet. Inventions often arise from the need for efficiency, convenience, or innovation in daily life. Throughout history, many famous inventors, like Thomas Edison and Nikola Tesla, have contributed to advancements in various fields. These inventions can lead to significant changes in society, influencing how people communicate, travel, and work. Overall, inventions play a crucial role in shaping the modern world.