Ok, so I grew up being told that for every second after a lighting strike, before you hear the thunder, that was how many miles away the lighting was.. How many of you grew up on that? Now I learn every 5 seconds is only one mile? Lol.. I really only thought to look it up for the first time today! and found out that even if you can see the lighting, it's still could only be 7 miles away without thunder making a sound where you stand.