How many zeros in a billion?

Francis wrote:

You maybe have a billion cells but everybody else has other figures:

Quote:

"The human brain holds about 100 billion nerve cells."

Even big numbers are meaningful when one doesn't have enough of it..

ebrown wrote:

A billion brain cells is just 1% of what a normal adult has (and many of us lost that much in college)

For the mathematically challenged among us; 1% of 100 billion is 1 billion.