Geoid

https://www.wikidata.org/wiki/Q185969

Field Hierarchy

Parent
Physics 33M papers	Engineering 25M papers	Materials science 18.5M papers	Quantum mechanics 13.3M papers
Geology 10.4M papers	Optics 8.1M papers	Optoelectronics 3.7M papers	Petroleum engineering 498k papers
Geophysics 456k papers		Wavelength 453k papers
Current
Geoid 6,218 papers
Child
Undulation of the geoid 1,870 papers

Trends

Notes

History