Electromagnetism:
The Big Question
Here's a question for you:
Atoms usually have equal numbers of protons and electrons. Therefore, they are electrically neutral since the positive protons cancel the negative electrons.
What holds atoms together to make molecules, if most atoms have no electrical charge?
This allows different atoms
to bind together, an effect called the
residual electromagnetic force.
Therefore, the electromagnetic force accounts for all of
chemistry, and therefore all of biology, and therefore for life itself.
Amazing isn't it - all the wonderful structures of the world around you exist because protons and electrons have opposite charges.
The Meaning of Life