It is essentially an observational method, depending on the appearance of the speckle pattern that is seen when the surface of an object is illuminated with coherent light.

A technical pattern generates conversation. Experts see a bullish trend. The price of Bitcoin creates a "cup and handle." This form tends to indicate growth. History supports this. Prices rise after ...

Easter greeting cards or posters with bright eggs, easter bunny and spring flowers. Minimalist banners, pattern backgrounds. Vector illustration. Easter greeting cards or posters with bright eggs, ...