كي٠ليزر يعمل ÙÙŠ Ø¬Ø±Ø§ØØ© العيون بالليزر
What is a ليزر? LASER stands for Light Amplification by Stimulated Emission of Radiation. The first word is a good starting point. The ليزر is a light. Not like a light in your room, but a kind of light. He qualities.Monochromaticity unique – a ليزر has a wavelength or color. A normal light bulb has a range of wavelengths.Directionality – The ليزر is a beam, which does not deviate. Compare a ليزر pointer with a regular flashlight.
