I recalled that in my secondary school I came across a science book from the school library that demonstrated a simple method of producing a rainbow without the need of using a prism. I tested out the method at that time and it worked, much to my amazement and joy. After so many years, I again tested out this method and it still worked! The 'created' rainbow showed itself on my kitchen wall as shown in Image 1. The method is very simple, simply get a basin of water and a mirror. Partially submerge the mirror, tilted at an angle, in the basin of water under sunlight. As the sunlight gets reflected by the mirror, refracted by the water and travelled out of the water, it will make a rainbow as the seven colours of white light travel at different speeds in water. Here are more methods under wikiHow : http://www.wikihow.com/Make-a-Rainbow. You have heard of wikipedia but probably not wikiHow : http://www.wikihow.com/Main-Page.
Saturday, May 24, 2008
Making a rainbow
I recalled that in my secondary school I came across a science book from the school library that demonstrated a simple method of producing a rainbow without the need of using a prism. I tested out the method at that time and it worked, much to my amazement and joy. After so many years, I again tested out this method and it still worked! The 'created' rainbow showed itself on my kitchen wall as shown in Image 1. The method is very simple, simply get a basin of water and a mirror. Partially submerge the mirror, tilted at an angle, in the basin of water under sunlight. As the sunlight gets reflected by the mirror, refracted by the water and travelled out of the water, it will make a rainbow as the seven colours of white light travel at different speeds in water. Here are more methods under wikiHow : http://www.wikihow.com/Make-a-Rainbow. You have heard of wikipedia but probably not wikiHow : http://www.wikihow.com/Main-Page.
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