Assertion: magnetic field | /r/HasProperty | about 0.5 gauss
Facets:
Source sentences:
text: The Earth's magnetic field at the surface is about 0.5 Gauss.
text: The Earth's magnetic field is only 0.5 gauss and radical pair mechanism is the only plausible way that weak magnetic fields can affect chemical changes.
text: The earth's magnetic field is about 0.5 gauss.