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Solar Light
Solar light can more elegantly be termed sun light. Sol is the Greek word for the sun, or more specifically our sun. It transitioned from one to the other when we discovered that the stars were actually distant suns. Light, well light is fairly self explanatory, it is the band of the electromagnetic spectrum visible to the human eye. While sunlight may seem like an ordinary, everyday occurrence, it is anything but.
Did you know that outer space has a temperature of -473 degrees Celsius? If not for the sun’s radiant energy, the temperature on the earth would not be much warmer than that. There is no life that has been recorded at that temperature, and if there is life, it’s certainly not any type that originated on earth. All life as we know it would freeze to death even if it had enough food without solar light, and that’s an important thing to remember.
Solar light, and the energy it provides, is the foundation of the entire life cycle on earth. Plants need sunlight to grow, from single celled algae, to the redwood trees of northern California. Herbivores eat the plants, carnivores eat the herbivores and each other, and everybody lives happily ever after. But none of that is possible without sunlight. But sunlight is even more fundamental to life than that!
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