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Governments, employers, and other interested third parties still look to traditional institutions of education to verify that learning has taken place. Schools and colleges thus play the same centralized, closed system role that banks do in the financial system. Like banks that ensure the validity and authenticity of…
What is a person? This seems like an easy question, but appearances can be deceiving. Throughout the long sweep of human history, the answer to the question of what a person is has continually changed. Was a woman a person, or was she a piece of property? Or was she even a liability, something that had to be…
why is green the dominant color of terrerestrial plants? That's easy. Chlorophyll molecules absorb light at the red and blue ends of the spectrum. It is the middle of the spectrum (the green part) that is reflected and gives plants their characteristic color. A more efficient photosynthetic pigment would be black…