Maybe your brain is tired of really big numbers. Shall we take a look at some really small numbers?

Scientists often need to work with very small numbers, like the size of an atom, or the thickness of a cell. They use scientific notation to write these very small numbers, in much the same way we wrote the very large numbers. For small numbers, the exponents are written as negative numbers. For example, if we wanted to write 1/10, which we say as "one-tenth", we could write it as .1 in decimal notation. In scientific notation, we would write it as follows:

To write .000034 (read "thirty-four six-thousandths") in scientific notation, we would write:

An example of an application of small numbers can be found at the following website, from The Why Files: