It’s relatively easy to understand how optical microscopes work at low magnifications: one lens magnifies an image, the next magnifies the already-magnified image, and so on until it reaches the eye ...

To that rude scientist in dim historic time who first acquired the knowledge of a simple lens, how strangely must have come the wizardry of magnifying-glass. Before his wondering eyes his hand was ...

See how a simple drop of water can transform into a functional microscope, revealing tiny details invisible to the naked eye. Army chief vows ‘no let-up’ ops following deadly Lanao ambush JD Vance ...