Static electricity is a build up of electric charge on an object, and it can have some pretty strange effects. See, everything around us is made up of atoms which have a positively charged nucleus ...

In the generic PEM fuel cell pictured at left, the membrane lies sandwiched between a positively charged electrode (the ... and timing of this, see Point-Counterpoint or ask our expert.) ...

As previously mentioned, gel electrophoresis involves an electrical field; in particular, this field is applied such that one end of the gel has a positive charge and the other end has a negative ...

When the plastic is moved near the desk, 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 negative plastic ...