คุณลักษณะ

• This is a poster that shows the "Earth at night" captured by an American satellite.
• Using the latest data from the 21 century, the names of major cities, oil fields, fishing boat lights, ocean and lake are written.
• It is ideal for learning about energy and the environment as a visual reference to "The world uses a lot of electricity at night, and the degree of electricity varies by country and region."