Static Electricity – Hair-Raising Science
During the winter months, static electricity can build up and cause a shock when we touch a piece of metal or someone else. You can actually feel, see and hear the spark jump from your body or see it when you rub two cotton blankets together. But what happens to cause that shock and zap and why is it worse in the winter?
First you have to understand atoms, the things that make up all matter. Do you remember high school physics? The nucleus of an atom has neutrons and protons (positive). The shell is made up of electrons (negative). When the number of electrons and protons are even, the atom is neutrally charged. If there are more electrons, the atom is negatively charged. More protons, it’s positively charged.
Some atoms want to keep their electrons, while others will give them up when they
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