Lasers Explained: From Barcode Scanners to Eye Surgery

LASER stands for Light Amplification by Stimulated Emission of Radiation.
Lasers produce light that is highly focused, coherent, and powerful.
Red lasers are common in barcode scanners and laser pointers.
Powerful surgical lasers can cut tissue with extreme precision.
LASIK eye surgery uses lasers to reshape the cornea for clearer vision.
Blu-ray players rely on blue-violet lasers to read tiny data tracks.
Industrial lasers can cut, weld, and engrave metals and plastics.
Fiber optic communication uses lasers to send data across the globe.
Laser light shows transform physics into dazzling entertainment.
From medicine to manufacturing, lasers are one of physics’ most practical inventions.