Most of us have heard of Schulz von Thun's "four ears." Not that he actually has four ears; he describes more of an aspect of interpersonal communication, saying that we can hear a statement as an instruction, a hint, criticism, or a personal comment—in four different ways, almost as if we had four ears. ...

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Some say physicists don't argue politically: "A vehicle's fuel consumption is the direct result of its total resistance to motion. This includes overcoming inertia (Newton's Law), drive friction, road types, rolling resistance, and air resistance." Resistance and more resistance—we ourselves sometimes experience resistance to motion, so we want to simplify things. ...

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And we're not just talking about the beepers in the intensive care unit. Anyone who thinks they already have enough electronics in their car can put their TireMoni display in the door pocket and receive an audible warning if a tire pressure is at risk. In any case, timely warnings about air loss in car or motorcycle tires are very useful. ...

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