  Any means to control gravity like electromagnetism is currently out of reach
by many orders of magnitude even under extreme laboratory conditions. Some
often poorly executed experiments or pseudoscience theories appear from time to
time claiming for example anomalous forces from capacitors that suggest a
connection between the two fields. We developed novel and high resolution
horizontal-, vertical- and rotation-balances that allow to test electric
devices completely shielded and remotely controlled under high vacuum
conditions to perform the first in-depth search for such a coupling using
steady fields. Our testing included a variety of capacitors of different shapes
and compositions as well as for the first-time solenoids and tunneling currents
from Zener diodes and varistors. A comprehensive coupling-scheme table was used
to test almost all combinations including capacitors and solenoids with
permittivity and permeability gradients as well as capacitors and varistors
within crossed magnetic fields. We also tested a crossed-coil producing helical
magnetic field lines as well as interactions between a pair of shielded
toroidal coils to look for proposed extensions to Maxwell's equations. No
anomalous forces or torques down to the Nanonewton or Nanonewton-Meter range
were found providing new limits many orders of magnitude below previous
assessments ruling out claims or theories and providing a basis for future
research on the topic.
