From Greek geōdaisia 'division of the earth,' from gē 'earth' + daiein 'to divide,' the science of measuring Earth's shape.
The science of measuring and representing the shape, orientation, and gravitational field of the Earth.
From Greek geōdaisia 'division of the earth,' from gē 'earth' + daiein 'to divide.' Originally concerned with land surveying and property division, it evolved into the precise science of measuring Earth's shape. Eratosthenes performed the first geodetic measurement in 240 BCE, calculating Earth's circumference to within 2% accuracy.