Tech blogs have an unpleasant concern with newness and fads; Twitter (for all its virtues) encourages a tendency to recycle (“share”) current science news, which often exacerbates the problem. How many of the people who flocked to “retweet” reports about neutrinos surpassing the speed of light had any notion why the chances of that scientific result being right were so remote? The basic, bedrock material you need to understand in disciplines like physics, chemistry, and biology is years, decades, or even hundreds of years old, and much of it will never change. (This is a measure of how good people like Newton, Maxwell, and Einstein were at what they did.) In a topic like physics, what individuals studied in schools and colleges 50 years ago is still the essence of what pupils need to know today before diving into the new flotsam and jetsam. That is why we can (and should) read and respect lectures given by brilliant scientists and educators like Richard Feynman in the 1960s; they are still relevant today. If you don’t understand concepts like electricity, magnetism, heat, atomic structure, the laws of motion, the kinetic theory, the conservation of energy, and so on, you won’t be able to grasp any invention, machine, or cutting-edge technology. These are the kinds of issues I bring up on this website, subtly disguised as articles about relevant everyday topics.