the.com/geophysics
physics that's too impatient to stay in the lab, so it studies the whole planet instead.
means The branch of science that applies the tools and laws of physics to understand Earth's structure, materials, and forces — from earthquakes and magnetic fields to the planet's molten heart.
from A 19th-century compound built from Greek 'geo-' (earth, as in geography and geology) plus 'physics', itself from Greek 'physis' meaning nature or the natural order. The word simply fuses 'earth' with 'the study of nature's forces' — scientists needed a name once they started treating the whole planet as one big experiment, probing it with seismographs and magnetometers rather than beakers.
- seismic imaging
- uses earthquake waves to x-ray earth's interior
- found oil via
- magnetic and gravity anomalies, not luck
- core discovery
- inner core spins slightly faster than crust
- timescale
- reads rocks like clocks running over millions of years