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Anonymous Poster

lightining

06/03/2010 9:55 PM

which comes first thunder or lighting? why lightining causes.
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lyn
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#1

Re: lightining

06/03/2010 10:01 PM

Lightning travels 186,282 miles/second. Thunder travels 760 miles/hour.

Clouds rubbing together causes it.
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Tornado
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#2

Re: lightining

06/04/2010 1:01 AM

If you count the number of seconds from the lightning to the thunder, and divide by five, that will tell how many miles away the lightning strike was. The closest interval I ever heard was about 0.4 seconds ≈ 0.08 miles (about a city block).

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North of 60
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#3

Re: lightining

06/04/2010 9:26 AM

Thunder is the audio product of the rapid heating of air by the passing of large amounts of current through it.

http://en.wikipedia.org/wiki/Thunder

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Anonymous Poster
#4

Re: lightining

06/04/2010 9:41 AM

Theoritically it is light and then sound. Sequence is

- Electrostatic charge formation.

- Stepped leader formation.

- return strike formation.

- Break down of the insulator (air)

- Super heating - giving out light.

- The shock wave (sound)
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Anonymous Poster
#5
In reply to #4

Re: lightining

06/06/2010 4:12 AM

Understand up to the heating,then light produce. How the waves(sound ) generated?
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Anonymous Poster (2); lyn (1); North of 60 (1); Tornado (1)

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