The flat myth and the ancient curve
The spin that squashed the poles
The lumpy gravity of the geoid
Mapping a round world on a flat screen
YOUR GOAL
Master of The lumpy potato we call home
007skaty Earth's Equatorial Bulge
The spinning Earth bulges at the center, pushing Chimborazo closer to the stars!
007skaty Louis Godin and Charles Marie de La Condamine survived earthquakes, sickness, and intense arguments during their ten-year equatorial
007skaty Scientists use brass surveying instruments in the snowy wilderness of the Torne Valley
007skaty Spin and squash the planet to discover how rotation shapes Earth's true form.
Slower clocks: A grandfather clock calibrated in Paris will lose about two and a half minutes every day if moved to the equator.
A sphere-like object that is flattened at the poles and bulges at the equator. Isaac Newton first proposed this shape in 1687, which French expeditions later confirmed using latitude measurements.
What force caused by Earth's daily rotation pushes its mass outward at the equator?
Which Swedish astronomer, famous for a temperature scale, joined the Lapland geodesic expedition?
Which French astronomer argued that the Earth was a prolate spheroid, shaped like a lemon?
What did Jean Richer observe about his pendulum clock in Cayenne, French Guiana, in 1671?
In which modern-day South American country did the 1735 French Geodesic Mission measure the equator?