On 2010-10-23, Arri London > wrote:
>
> notbob wrote:
>>
>> On 2010-10-20, Arri London > wrote:
>>
>> > to use it It is perfect for lightning calculations.
>>
>> What's to calculate? Every six seconds is a mile.
>>
>> nb
>
> And where did you study meteorology, one might ask LOL.

On the web! Where else. Seems the last page I read was 1 sec off.

http://www.lightningsafety.noaa.gov/distance.htm

nb