TFE-Magnetic Field

Predictions for the properties of the magnetic field of the earth.

Globe predictions are from the calculator here: https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml#igrfwmm

Globe maps are here: https://www.ncei.noaa.gov/products/world-magnetic-model

The globe predicts that the magnetic field strength will be least in Santiago and stronger the farther from Santiago. The 0 inclination line goes through Peru. In Minneapolis, Atlanta, Miami the north end will point down. Santiago, Punta Arenas, Union Glacier the south end will point down.

The flat earth predicts that the magnetic field strength is maximal at the north magnetic pole and reducing farther away, minimum at Union Glacier. The inclination is always north end down. Reducing farther south, but never will the south end of the needle point down.

The iPhone app “Magnetometer” reads the total field strength. As does the custom written Magnetometer app developed by Andreas Tofahrn for The Final Experiment. It runs on an M5AtomS3 with the IMUPro package. Here is the source code: 20241208-AccMagTFE.py

I will be using the dip compass and M5AtomS3 to measure the inclination of the magnetic field, and the Magnetometer app on iPhone and the M5AtomS3 to measure the total field strength.

Globe Predictions

  • Minneapolis
    • Field Strength 54,400 nT
    • Inclination 71°
  • Atlanta
    • Field Strength 48,000 nT
    • Inclination 62°
  • Miami
    • Field Strength 43,000 nT
    • Inclination 54°
  • Santiago
    • Field Strength 23,400 nT
    • Inclination -35°
    • South end down
  • Punta Arenas
    • Field Strength 30,750 nT
    • Inclination -50°
    • South end down
  • Union Glacier
    • Field Strength 50,000 nT
    • Inclination -68°
    • South end down

Flat Earth Predictions

  • Minneapolis
    • Highest field strength
    • Steep inclination, north end down
  • Atlanta
    • Less field strength than previous
    • Less steep inclination, north end down
  • Miami
    • Less field strength than previous
    • Less steep inclination, north end down
  • Santiago
    • Less field strength than previous
    • Less steep inclination, north end down
  • Punta Arenas
    • Less field strength than previous
    • Less steep inclination, north end down
  • Union Glacier
    • Less field strength than previous
    • Less steep inclination, north end down