Sunlight - written by Seb-Ka

sunlight

Sunlight is composed of many different levels of energy. This energy is transmitted in the form of electromagnetic waves. These electromagnetic waves vary in length from .00001 of a nanometer (for cosmic rays, as they are called by science, and a nanometer is 1/1,000,000,000 of a meter) to about 5,000 kilometers, or 3,100 miles for electric waves. This is an incredibly wide range of energy radiations for one singular source to produce.

Not all of these energy rays from the sun reach the earth's surface and our bodies. The atmosphere that surrounds the earth protects it from absorbing all but a small and safe portion of these numerous wavelengths emitted by the sun. Of the waves that do reach the earth's surface, the human eye can only see a very small portion. It has been estimated that the human eye can see only a fraction of 1% of the electromagnetic spectrum that does reach beyond the layers of atmospheric protection so well provided for our safety. Ultraviolet and infrared radiation that does penetrate and come into our atmosphere is invisible to the human eye. It is the ultraviolet portion of sunlight that has been scientifically proven to be the most biologically active, and unfortunately, it has also been ultraviolet light that is eliminated and filtered out by common window glass and the supposedly solar transmitting glazes that are commonly used in our buildings today. Even sunglasses and clothing prevent the proper amount of sunlight and ultraviolet light from reaching our bodies and bringing vibrant and healthful properties to full peak.

The amount of ultraviolet light that is available from the sun depends upon the season and the location where you are on earth. The more atmospheres that the ultraviolet light has to pass through, the less there will be to reach the earth. In the winter, when the northern hemisphere is tilted away from the sun the sunlight must pass through more atmosphere, therefore less ultraviolet light is available for our bodies, not to mention for plants and other living things that depend upon sunlight for proper development and growth.

Sunlight emits all forms of electromagnetic rays, including cosmic rays, gamma rays, X-rays, ultraviolet rays, and near-ultraviolet rays in the visible range that our eyes see as color, and short wave, ultraviolet, infrared, radio waves, electric waves, and the incredibly long waves which reach us as heat and warmth. Unfortunately the current medical concept of sunlight incorrectly preaches to us of a "harmful and dangerous" sun, one that is responsible for aging, and capable of causing skin cancer. Fortunately though, this concept is responsible for the great amount of research done on the effects of sunlight on humans, animals and plants. This research provides an abundance of technical materials on the true effects of sunlight and its relation to human health and longevity. Undeniably, the sun plays a role in the development of skin cancer to humans lacking melelain but is not the main factor in such problems to those abundant in melelain.