Rainbows: How Sunlight Paints Colorful Arcs in the Sky
# Rainbows: How Sunlight Paints Colorful Arcs in the Sky A rainbow is one of the most beautiful sights in nature. When sunlight breaks into bright bands of red, orange, yellow, green, blue, indigo and violet, it forms a glowing curved arc across the sky. Many people think rainbows are physical objects, but they are … Read more