Results for "Geometry"
Found 4 results
Measuring the Earth with a Stick and Sand
How Eratosthenes measured Earth's circumference in 240 BC using shadows, geometry, and a stick in t…
Thales Measured the Heavens with a Stick
Thales of Miletus used a wooden staff and shadow geometry to measure the heavens around 600 BC, tur…
How an 8-Foot Pole Built a Capital
Discover how the Duke of Zhou used an 8-foot bamboo pole and sunlight to align the Western Zhou cap…
How One Rope Tamed Gravity in 2600 BC
Imhotep used a knotted rope and the Seked ratio to build the Step Pyramid. See how math beat gravit…