THE electrical method, where it is applicable, is now by far the most sensitive method of detecting small quantities of matter; and the recent advances in physical science made by the method of ...

This diy electroscope circuit can precisely measure electrostatic charge. The charge to be measured is stored on C1 (a high quality MKT capacitor with a value of 1-2 μF). The voltage (U) across the ...

THE gold-leaf electroscope, simple as it is, has proved itself to be an excellent instrument for showing the properties of statical electricity; but usually it has this drawback, namely, that it does ...

AIKEN — On a recent Saturday morning at the Savannah River Site Museum, a group of Scouts leaned over tables scattered with Geiger counters, hydrogen isotope models and homemade electroscopes. The ...