Those who work with scalar technology believe that a machine that registers zero (0), or is turned off, is not only still an object effecting the environment, but is also still transmitting on what physicists might call a "dark energy" level also called zero point energy or non-hertzian energy.
Harold is not alone in his belief that regular science has never been able to measure zero because it doesnt exist in this part of the universe.
Scalar technology runs on this zero point energy. It registers zero on most types of machines see <keelynet.com>.
Some estimates are that 80% of the population may sense scalar waves.