That scattering is called the Tyndall effect. It’s the same phenomenon that makes the sky or ocean look blue, even though the ...

Like the colors on the leaves, the sky also changes color with the seasons. In the winter, the sky has more of a blue hue. But in the summer, it looks milky white, even when free of clouds. Why is ...

Brown eyes contain a high concentration of melanin, which absorbs light and creates their darker appearance. Blue eyes ...