LOST TECHNOLOGY
Why Did Bronze Age Builders Move This 25-Ton Stone 11 Miles?
Mineral evidence links the Devil's Arrows to Brimham Rocks, but identifying the stone's origin does not reveal the hauling route, transport equipment, or builders' motives.
Arc
Lost Technology
Anomalies, systems, precision, scale contradictions, and hard-to-explain engineering.
Latest Case Files
Recent write-ups in this arc.
LOST TECHNOLOGY
Are There Really 30,000 Earthworks in the Amazon?
A southwestern Amazon LiDAR survey recorded 432 earthworks. The much larger regional total and proposed population are estimates built from samples and assumptions.
LOST TECHNOLOGY
Could Evidence of Civilization Survive 56 Million Years?
The Silurian Hypothesis asks what industrial activity could leave in the geological record, and why a chemical anomaly is not evidence of a lost civilization.
LOST TECHNOLOGY
476,000-Year-Old Wood Structure Before Modern Humans
A forensic look at Kalambo Falls in Zambia, where two deliberately shaped logs were joined by a cut notch at least 476,000 years ago—long before Homo sapiens.
LOST TECHNOLOGY
80-Ton Stones From the Lighthouse of Alexandria
A forensic look at 22 massive blocks raised from Alexandria’s harbor, including 70–80-ton doorway pieces linked to the ancient Pharos.
LOST TECHNOLOGY
4,000 Year Old Water Pipes Found in Ancient Chinese Town
A forensic look at the 4,000-year-old ceramic drainage pipes at Pingliangtai, and what they reveal about early urban planning in China.