We’re seeing an explosion of beautiful, colorful hair all over social media. If you’ve ever dreamed of rocking a bold hairstyle, look no further than prism hair. The trendy hair-dyeing technique has ...

Diplopia (double vision) is a rare but disturbing condition. It happens when the images of objects before you are formed in different parts of the retinas in your two eyes. Many disorders of the eye ...

A prism has a constant cross-section throughout its length. When the cross-section is a triangle, the prism is called a triangular prism. When the cross-section is a hexagon, the prism is called a ...

Newton’s experiment remains almost insultingly simple. Sunlight, a darkened room, a glass prism. The conclusion was unavoidable. Colour belonged to light itself. The prism merely made it visible.