From Big Think, Jan.3, 2023: Does negative energy really exist? Don Lincoln explores what it is, what it isn’t and what the state of having less energy than empty space means.
kinetic energy
From CNN, August 2, 2021: Don Lincoln describes the mastery of physics Olympic athletes have as demonstrated by their physical feats. Read more about how Olympic athletes apply the principles of physics and use amazing amounts of energy, skill and precision to run, throw a discus, balance on the balance beam or launch the javelin.