Evolution of computer mice from trackball to optical, translating hand movements into on-screen interactions with precision.

Best colour laser printers of 2025 for a great home printing setup - Prints Charming himself, Stuart Pritchard, lines-up a ...

A laser is a very thin, focused beam of light that heats and destroys tissue. Lasers can focus very accurately on tiny areas. Doctors can use lasers: instead of blades (scalpels) for surgery to heat ...