📁 Discoveries
Eureka moments and groundbreaking theorems
In 1351, Jia Lu used a bamboo tube and a simple 1:200 slope to tame the Yellow River and save the G…
How a 13th-century astronomer used rolling brass rings to fix broken star charts and replace Ptolem…
Discover how an 11th-century scholar solved a deadly bridge problem by watching a basket weaver, le…
In 1666, Isaac Newton used a single prism to split sunlight at Woolsthorpe Manor. His simple experi…
How Al-Kindi cracked enemy codes in the 9th century using simple letter counts instead of wild gues…
How Anthemius used a rope, chalk, and pure geometry in 532 AD to make a 31-meter dome float, turnin…
In 330 AD, astronomer Yu Xi used a bamboo rod and a charcoal line to prove the sky drifts one degre…
How Eratosthenes measured Earth's circumference in 240 BC using shadows, geometry, and a stick in t…
Discover how the Duke of Zhou used an 8-foot bamboo pole and sunlight to align the Western Zhou cap…