The world's largest artificial rainbow: 31,000 students and teachers together
A rainbow is an optical phenomenon in meteorology. When sunlight hits water droplets in mid-air, the light is refracted and reflected, creating an arching spectrum of colors in the sky. Everyone can see a rainbow when the rain clears. The world's largest man-made rainbow was created by 31,000 students and faculty members who celebrated the 100th anniversary of the Polytechnic University of the Philippines with this artificial rainbow.
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