Earth's magnetic field

scorched earth tactics (scorch-earth tactics)

earth-centered earth-fixed coordinate system (ECEF)

magnetic variation / magnetic declination

magnetic bubble memory / magnetic bubble store

Earth's electric field

magnetic field strength

magnetic-field energy

magnetic-field strength

field officer (field-grade officer / senior officer)

combat field pack, field pack

air support field pack, field pack air support, airborne / para (air support) / Pathfinder Bergen

combination field and field-off duty uniform

earth bank

lumps of earth

scorched earth policy

nap-of-the-earth (NOE) (ground-hugging / terrain masking / flying under the radar / hedgehopping)

slave earth station

earth penetrating weapon

earth auger truck

earth borer and polesetter truck

earth electrode

earth road

earth wax

earth albedo

earth axes

earth gravity

earth orbital flight

earth receiver

earth shoulder

earth surface

earth transmitter

Earth’s atmosphere