Needles, Guesses, and the Numbers We Just Trusted: The Long Road to Dashboard Honesty
For most of the twentieth century, the gauges staring back at you from the dashboard were educated guesses at best. Speedometers could be off by fifteen miles an hour, fuel needles lied constantly, and nobody really complained. Here's how we went from blissful ignorance to a cockpit's worth of real-time precision — and what we gained and lost in the process.