COLORS OF LIGHT

As Newton it explained the splitting of the colors of the light of the sun.

In 1665, when Isaac Newton had 23 years, the plague if spread for the Europe. To run away from the contágio in the great city, Newton passed one year and way in the field, in the house of its mother. During these forced vacations the study was dedicated to it and to the research for proper account and made surprising discovered that it only published some years later. Here we go to tell to its studies on the light and the colors. Newton made use only of some prisms, lenses and of the light of the sun. Making a small puncture in a curtain he got a narrow beam of light that made to happen on the prism. The light, after passing for the prism, projected on the opposing wall a prolongated spot, with the distributed colors of the red to the violet.

" It was very pleasant ", it wrote it, " to observe the alive and intense colors, but soon I treated to examine them com.cuidado ". Of face, it it arrived at the idea of that the white light of the sun is composite of light of all the visible colors. What the prism makes is, simply, to separate these components. The violet component is deviated and the red, to less deviated. The others have intermediate shunting lines.

To test this idea, it made the light spread for the prism to happen on another prism, placed in the inverted position. Bingo! As the prism joined of new the component lights and the white light resurged in the other side.

To have certainty of its interpretation, Newton made a crucial experience: the light exhausted on a card with a small puncture happened. Justifying the position of the puncture it left to only pass one component (the red, for example). It made this beam to happen on as prism and did not observe no splitting more. The beam if deviated but it continued of the same color.

>> NEXT