There are some numbers that do not change in our world. Those numbers are called
fundamental constants. The gravitational constant ,
the electric constant , the magnetic constant
are examples. If these numbers were different from
what we have now, the world would be very different from the one we live in.
A fascinating fact about these constants is the relationship between the electric
constant and the magnetic constant. The ratio of the electric constant and the
magnetic constant is :
This relationship was realized by Maxwell after it was found out that
Electricity and Magnetism are related.