Aeolipile: The Unexpected Connection Between Steam Power and Stamp Collecting When we think about stamp collecting, our minds often drift to the intricate designs, historical snapshots, and cultural narratives each tiny adhesive square contains. But today, let’s explore a surprising parallel between stamps and an ancient invention you may not know about—the aeolipile. What Is an Aeolipile? The aeolipile, or Hero’s engine, was an ancient steam-powered device invented by Hero of Alexandria in the first century AD. It’s considered the … Continue reading →