Nikola Teslaâs invention of the laser may be one of the best examples of the good and evil bound up together within the mind of man. Lasers have transformed surgical applications in an undeniably beneficial way, and they have given rise to much of our current digital media.
by Demand Media. Special fountain tints or dyes are used to turn water blue. While the color blue is often used to to depict or represent water, in reality, blue is only a reflection of the atmosphere around it -- the sky above, when dealing with natural bodies of water, or a swimming pool's walls, which are often painted a shade of blue or aqua.
1 Pond dye is available in either blue or black.  This is natural plant filtration to remove nutrients in the water. There are many ways to add plant life to an earth-bottom pond. The use of floating islands allows easier control of growth and will utilize more nutrients than plants that are planted into the soil.