W hen you hop in your car to head to work, drop your kids off at school or make a Target run, how many traffic lights do you ...

Each colour within the visible light spectrum has its own narrow band of wavelength and frequency. When white light passes through a coloured filter, all colours are absorbed except for the colour ...

The colour of an object is determined by the wavelength of light ... a prism to split (or disperse) white light into a spectrum of colours: red, orange, yellow, green, blue, indigo and violet.