We can produce the effect by actually putting the instrument near flowing water, even water flowing through a steel pipe. We want to be able to make inverters for operating PC colour monitors on a car battery. We could make it for a TV but not for any higher wattage. We have used simple battery supply with 7805 IC for operating 286 PC with car battery. But with colour monitors this fails.
Sealed batteries have to have a low charging rate.
And where the power-off time is high they do not get fully charged in the given time. 11 Many diesel engines are not working properly because they are set by intuition only. A lot of fuel is wasted this way. We thought of a diagnostic instrument. But could not make it 5 years back, because the experts said the computer clocks are not that fast.