/u/Abdiel_Kavash's posts
If we had all of today's technology in Pompeii in 79 AD, could we have predicted the eruption of Mt. Vesuvius? Could we have done anything to save the city, or at least its inhabitants?
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When and how did the red/yellow/green traffic lights come to be? How did they spread pretty much universally around the world? What, if anything, was used to direct traffic before them?
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Mark as read: Add to a list
Mark as read: Add to a list