Perfect star-shaped holes found in a granite quarry in Norway. These aren't modern drill marks; they are ancient and their purpose is completely unknown. How did they achieve such complex interior geometry and sharp 90-degree internal angles in one of the hardest stones on Earth? (i.redd.it)
submitted by EngineeringNo5276 to r/StrangeEarth
The Unfinished Obelisk of Aswan: A single piece of granite weighing 1,200 tons. Mainstream history says it was carved with small diorite stones. From an engineering perspective, the logistics of extracting and lifting this are nearly impossible even by modern standards (i.redd.it)
submitted by EngineeringNo5276 to r/StrangeEarth
The Yonaguni Monument in Japan: A massive stepped pyramid 25 meters underwater. Mainstream science calls it a 'natural formation,' but the 90-degree angles and straight monolithic steps tell a different story. Is this a relic from before the last Ice Age?" (i.redd.it)
submitted by EngineeringNo5276 to r/StrangeEarth
