In the late 19th century, archaeologist W.M. Flinders Petrie documented drill cores and saw cuts in granite at Giza that displayed spiral grooves suggestin
Choose your own path through ancient archaeological mysteries with our interactive story experiences. Each story presents multiple perspectives — mainstream, alternative, and speculative — letting you explore the evidence and reach your own conclusions about ancient civilizations. Navigate branching narratives that weave together archaeological findings, geological data, and competing theories into engaging investigative journeys. Our stories cover topics ranging from the water erosion debate around the Great Sphinx to underwater discoveries near Bimini and the enigmatic engineering of South American megalithic walls.
In the late 19th century, archaeologist W.M. Flinders Petrie documented drill cores and saw cuts in granite at Giza that displayed spiral grooves suggesting feed rates and cutting speeds far beyond what copper tools and sand abrasive could achieve. Modern engineer Christopher Dunn revisited Petrie's measurements and calculated that the ancient drills penetrated granite 500 times faster than modern diamond-tipped drills operating without lubricant. The cores show a groove pitch that implies the cutting tool advanced into the stone under enormous pressure with each rotation. Mainstream Egyptologists attribute the work to copper tubes, sand, and patience. Dunn argues that the physical evidence on the stone itself tells a different story — one of powered machinery operating at industrial parameters that no experimental replication has matched.
This interactive archaeological story lets you choose your path through competing perspectives on ancient mysteries. Navigate branching narratives that present mainstream archaeological interpretations alongside alternative hypotheses, examining the evidence from multiple angles. Each choice leads to deeper exploration of the archaeological record, geological data, and scholarly debate surrounding this ancient enigma.