Le Monnier further used the gnomon from 1744 to establish the variations of the ecliptic, or the variations in the obliquity of the Earth's axis.
Tilt | axial tilt | Tilt (TV series) | Tilt (producers) | Kirby Tilt 'n' Tumble | Tilt.tv | Tilt table test | Tilt (Polish punk band) | Tilt (fungicide) | Tilt (band) | tilt | Axial tilt | Axial symmetry | Axial Seamount | Axial compressor | axial |
He became known in 1977 for his paper in Nature and later in the Journal of Atmospheric Physics (1978) delivering all the spectral components of the long term variations of eccentricity, obliquity (axial tilt) and climatic precession.
Using ocean sediment cores, the Science paper verified the theories of Milutin Milanković that oscillations in climate can be correlated with Earth's orbital variations of eccentricity, axial tilt, and precession around the Sun (see Milankovitch cycles).