If you took introductory physics, you learned about the “fundamental forces.” It goes something like this: All interactions ...

As they studied atomic disintegration, they kept seeing that the atomic number (number of protons in the nucleus, equivalent to the positive charge of the atom) was less than the atomic mass ...

The electron and proton are attracted to each other ... electrons in the desk are repelled by the negatively charged plastic. This leaves an area of positive charge in the desk near the plastic. The ...