A nonmetal desk or table (For example, a wooden, plastic or glass desk or table would work.) At least one material to test (It should be no larger than the plate or can be folded to be small and able ...

Editor's Note: The last electroscope I used employed gold leaves or pith balls to indicate charge, but here's an electronic version with no moving parts. Though one of our reviewers felt the design ...

(PhysOrg.com) -- In May a University of Maryland-led team of scientists reported some previously unknown features in the energy spectra of cosmic ray nuclei, which have been studied for almost 100 ...

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 ...