Inertial frames of reference

inertialI have very fond memories about my high school maths and physics teacher. He is the one responsible for my love for science and the first who tried to teach me how to use my own brain and think freely.

He stressed the subject of inertial frame of reference, a kind of “independent observation point”, quite a lot. Think of when your sitting in a train and the train next to you moves: you have the impression that the train you’re on is moving. From the inertial frame of reference of the guy on the platform, it is clear which train is moving. My high school teacher loved to bring up Galileo’s struggle to convince his contemporaries that the Earth was revolving around the Sun, not the opposite, as most believed at those times.
My physics teacher told us that they were actually both right, both points of view had their own reasons based on physics if you observed them from the correct inertial frame of reference.

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Yeah I’m not shy, just introvert!

TED talks are illuminating. I appreciate most of them and unfortunately it is impossible to follow all of them. But I was drawn by the title “The power of introverts” by Susan Cain. She clarified the concept for me: there is a difference between being shy and being introvert. I already new that both are not the problem our society wants them to be. My favorite Italian pediatrician, a follower of Winnicot’s theories and a radicalist as the likes of Ivan Illich and William Godwin, makes a strong point about it: an introvert or shy kid will most certainly become a gentle person; the opposite is not that obvious.

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