Conversational Physics

  • Why does time move forward?

    November 8, 2019 by

    Last week, we talked about how humans measure and experience time. We determined that, although time is ultimately defined by the cyclical events we use to mark its passage, it has an undeniable forward quality as we move through our lives. We called this quality the “arrow of time,” and rooted it in a simple… Read more

  • Why am I starting a physics blog?

    July 29, 2019 by

    The human brain is a wonderful instrument, capable of astounding feats of ingenuity and empathy. It struggles, however, with issues of scale: people in other countries, numbers larger than 10, really anything outside its immediate vicinity. These things are difficult for the brain to deal with. To get around such issues, it makes extensive use… Read more

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