Fermi Calc

Great Equations: Kinetic Energy

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There are some sets of symbols that, when interpreted, capture something significant about the way things work. This is one such set: Where m is a mass, v its speed and KE its kinetic energy. This is an equation that receives relatively little attention compared to more famous cousins, yet here we find both a … Read more

How many words in a life?

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Unlike universal grammar — the hypothesis that humans have innate structural language rules — it is hard to find advocates for universal vocabulary.  If we are not born with any semantic understanding of words, we must learn them. By watching how others use language we acquire knowledge of how words are intended to be used. … Read more