solar balloons

Solar balloons are large, specially designed balloons that use sunlight to generate hot air, allowing them to rise and float. They are typically made of lightweight, heat-absorbent materials that trap heat from the sun. As the air inside the balloon heats up, it becomes less dense than the cooler air outside, creating lift. Solar balloons are often used for educational purposes, atmospheric research, and recreational activities. They exemplify a sustainable approach to flight, relying on renewable solar energy rather than fuel.