Tag Archive: time scales 
Professors put a human touch on extreme time scales — from the very long to the ultra-short
We measure our days in slices of time. Geologic Time as a Football Field Here’s a way to put geologic time scales in perspective. Lay out the 4.6 billion years since the Earth was formed on a football field and we can see where the milestones would appear: Start at the goal line and go… » Continue Reading