What is the central idea of How far away is that lightning?

Explanation:

After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count "One-Mississippi, Two-Mississippi, Three-Mississippi," etc.) For every 5 seconds the storm is one mile away. Divide the number of seconds you count by 5 to get the number of miles.

I know that was not the main idea but that was the best i can do, You can do 2-4 stars and give a thanks for trying to help. i don't mind you giving someone else brainliest

this labor, by slow prudence to make mild.   c. ability to govern well