Are We Born Able To Read A Gas Gauge?

Almost all the analog instruments on your car's dashboard– speedometer, gas gauge, tachometer, temperature gauge– rely on a fundamental concept known as the number line. We're so used to the concept of a series of numbers regularly mapped onto a space (linear or otherwise) that the common thinking is that it's just… » 4/27/12 12:00pm 4/27/12 12:00pm