What are the characteristics of the energy that we see as visible light? Provide an example illustrating how these characteristics are expressed when someone sees a rainbow. What types of things (situations and/or objects) can interfere with these characteristics?

The light we see are waves of electromagnetic radiation, although what we see very little of this. The cones in our eyes act as a stimulus receiver. Light is basically the wavelengths that we as humans are able to see with our vision capability. Our eyes have specialized cells that are what act as the tuners which receive wavelengths. Wavelengths determine color, having a longer one may produce a red, reddish color. Depending on the spectrum may depend the visibility of color. It was Sir Isaac Newton who realized that when you have sunlight pass through a slit, plus a prism, color is then projected onto an object, for example a wall. These colors that are being projected are what we have now come to learn as the rainbow, this is caused by the refraction of light. These seven colors that we traditionally think of when we mention rainbow. Red, orange, yellow, green, blue, indigo, and violet, are really just reactions to light. When this happens in nature it is due to the light hitting the water, for instance droplets hitting the air and light from reflection. Situations that interfere with these characteristics can occur when more than one light source interferes with light waves. When waves are longer than one another they tend to spread themselves in much shorter waves. This is called diffraction, rays break a part, they do this by turning into light that us both dark and light colors within the spectrum. Another interference is the reciprocal action of light waves. Once two waves meet they can cancel each other out or even reinforce the waves. Diffraction can only be noticed when a light is passing via a narrow slit. Dispersion however is the white light that spreads into full spectrum wavelengths, this generally occurs when the direction of light changes the direction due to the wavelength.