To appreciate how light works we have to put it in its proper historical context our first stop is the ancient world where some of the earliest scientists and philosophers pondered the true nature of this mysterious substance that stimulates sight and makes things visible. The amazing thing about this historical turn of events is that the light bulb itself could hardly be simpler the modern light bulb which hasnt changed drastically since edisons model is made up of only a handful of parts. After all light travels in straight lines and bounces off a mirror much like a ball bouncing off a wall no one had actually seen particles of light but even now its easy to explain why that might be the particles could be too small or moving too fast to be seen or perhaps our eyes see right through them. What is a light bulb a light bulb is a simple apparatus that converts electric energy into light energy the law of conservation of energy says that energy can neither be created nor destroyed it simply changes form. The science of color and light to better explain how our eyes see color imagine a green apple why does the apple appear green light shines onto the apple causing the apple to absorb every color in the spectrum besides the color green
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