Archaeologists uncover Tenochtitlan’s legendary tower of skulls

Henry Romero/Reuters An ongoing excavation in the heart of Mexico City, once the great Aztec capital Tenochtitlan, has revealed a legendary tower inlaid with hundreds of skulls. This tower was first described by Europeans in the early 16th century, when a Spanish soldier named Andres de Tapia came to the city with Hernan Cortez’ invading force. In his memoirs, de Tapia described an “ediface” covered in tens of thousands of skulls. Now his account is corroborated by this historic find. A tzompantli, illustrated in the 16th-century Aztec manuscript, the Durán Codex. (credit: Wikimedia) According to a report from Reuters , the tower is 6 meters in diameter, and once stood at the corner of a massive temple to Huitzilopochtli, an Aztec god associated with human sacrifice, war, and the sun. It’s likely the tower was part of a structure known as the Huey Tzompantli, which many of de Tapia’s contemporaries also described. Read 5 remaining paragraphs | Comments

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Archaeologists uncover Tenochtitlan’s legendary tower of skulls

Solar road technology comes to Route 66

Solar Roadways’ dreams of sunlight-gathering paths are one step closer to taking shape. Missouri’s Department of Transportation is aiming to install a test version of the startup’s solar road tiles in a sidewalk at the Historic Route 66 Welcome Center in Conway. Okay, it won’t be on Route 66 just yet, but that’s not the point — the goal is to see whether or not the technology is viable enough that it could safely be used on regular streets. You should see it in action toward the end of the year. The tiles will be familiar if you’ve followed Solar Roadways before. Each one combines a solar cell with LED lighting, a heating element and tempered glass that’s strong enough to support the weight of a semi-trailer truck. If successful, the panels will feed the electrical grid (ideally paying for themselves) and make the roads safer by both lighting the way as well as keeping the roads free of rain and snow. They should be easier to repair than asphalt, too, since you don’t need to take out whole patches of road to fix small cracks. Of course, “if successful” is the operative term here. The real litmus test comes if and when Solar Roadways subjects the tiles to the legions of cars traveling on Route 66 and beyond. Missouri has a strong incentive to make that happen, though. As the Transportation Department’s Tom Blair observes , it would be odd to push self-driving cars in the state’s Road to Tomorrow initiative when the streets aren’t as smart as the vehicles using them. Via: Inhabitat , CleanTechnica , The Verge Source: Kansas City Star , News Tribune

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Solar road technology comes to Route 66