A crash course in changing the world.
Today is the Children's Day In Korea, May 5th,
In the Central Park, most childrens are playing together but it is too hot.
Therefore, Korean government decides to lunch new solutions which was completed last month.
The new method is using a solar power and using the sunlight, it will spin an electric fan.
It doesn't cost a lot of money since this method only needs metal board, and it is eco-friendly.
In the afternoon, workers come to the park and they set up one hundred fins for little children.