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Energy measuring 

Energy measuring is a term used to describe the light and radio waves, X-rays, and other forms of energy that transmitted through space as electromagnetic waves

Optical brightness or Optical Whiteners

Optical brightness or Optical Whiteners are chemicals make fabrics seem to show lighter than they do, to make them brighter they convert ultraviolet light to visible light in the blue region. They are sometimes used in the manufacture of fabrics and included in the formula of many detergents sold for home use.

Structural colour

Structural colour is a term used to describe objects that do not have any pigment yet get their colours from light that is being reflected in microstructures and by this manipulating our brain’s way to see colours (like in a rainbow). In nature, tremendous numbers of orders and patterns are generated spontaneously, which enliven our surroundings.

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