We're now so used to the idea that the Earth spins, rather than the Sun moves across the sky, it's hard for us to realize what a shattering mental revolution that must have been.
Vi er nu så vant til ideen om, at Jorden drejer - snarere end at solen bevæger sig hen over himlen - at det er svært for os at forstå hvilken rystende mental revolution det må have været.