He invented the first electrical measuring instrument, the electroscope, in the form of a pivoted needle he called the " versorium ".
22.
I differed in having horizontal " electroscope rudders " on the trailing edge, inboard of the movable wingtips, which acted to provide differential drag.
23.
Since it is able to distinguish between charged and non-charged objects, it is an example of a class of devices known as electroscopes.
24.
In her early work with Soddy, Hitchins helped to prepare radium standards for the calibration of gold-leaf electroscopes, used to measure radioactivity.
25.
Its purpose was to multiply, or amplify, a small electric charge to a level where it was detectable by the insensitive electroscopes of the day.
26.
His intuition was that the " tongue " of copper wire was vibrating just like a leave of an electroscope; which means that there was an electrostatic effect.
27.
The next step was when Abraham Bennet, the inventor of the gold leaf electroscope, described a " " doubler of electricity " " ( Phil.
28.
But when the inducing charge is moved away, the charge is released and spreads throughout the electroscope terminal to the leaves, so the gold leaves move apart again.
29.
:In the next World War, you might find one useful as a simple electroscope-ionization chamber fallout meter with which fallout radiation can be measured accurately ..
30.
It had been observed that an electroscope in a vessel at earth potential gradually lost its charge, even if very carefully insulated, due to the ionization of the air.
