nathy_87
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Registered: 14th Aug 08
Location: West Mids. Drives: Škoda Fabia VRS 5J
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Just had this crazy storm brew over Derby.
Now to see how far away it is from you, what do you count?
a.) The time between each 'clap' of thunder, then its X amount of miles.
b.) The time between each flash of Lightening.
I've always said thunder.
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marklawton
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Registered: 24th Apr 05
Location: Pensby, Wirral Drives:Golf mk4 GTI
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i always thought it was the time between the flash and the first sound of thunder
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_Allan_
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Registered: 24th Mar 04
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Count after lightening. Light travels faster than sound.
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Matt L
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Registered: 17th Apr 06
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b the time from flash to the sound is how far it is away.
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Liam
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Registered: 19th Jan 06
Location: Stafford
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i thought it was how long between the lightning and then the thunder?
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James_DT
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Registered: 9th Apr 04
Location: Cambridgeshire
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It's how long it is between the lightning and the thunder.
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Cosmo
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Registered: 29th Mar 01
Location: Im the real one!
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Im on the bandwagon, its time between the flash then the bang.
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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1 mile a second or something.
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Hammer
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Registered: 11th Feb 04
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The amount of seconds from when you see the lightning il you hear the thunder divided by 5 as it takes about 5 seconds to travel 1 mile.
Never accurate though because the lightning could start miles in the sky.
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andy1868
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Registered: 22nd Jun 06
Location: Burscough, Lancashire
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its A, but i'm not convinced its very accurate. considering that sound travels at 340m/s. which means it would take 4/5ish seconds for the sound of thunder to travel 1 mile (1600ish metres) 
is that right or am i being retarded?
edit: beat me to it 
[Edited on 01-09-2009 by andy1868]
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PaulW
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Registered: 26th Jan 03
Location: Atherton, Greater Manchester
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quote:
Originally posted by sand-eel
1 mile a second or something.
1 mile for every 5 seconds.
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Dom
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Registered: 13th Sep 03
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Yup, the time between the flash of lightening and the "clap" of thunder, divide by 5 will give you a very very rough distance.
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Scotty_B
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Registered: 11th Jun 03
Location: East Kilbride
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If both go at the same time, you're under the storm. 
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mwg
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Registered: 19th Feb 04
Location: South Lakes
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flash bang
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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If you die you've been hit by the storm
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sand-eel
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Registered: 15th Mar 07
Location: carluke/braidwood--IRNBRULAND
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If you have been sheltered from the storm, you have just put on a bob dylan cd.
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Tom
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Registered: 3rd Apr 02
Location: Wirral, Merseyside
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quote:
Originally posted by Matt L
b the time from flash to the sound is how far it is away.
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sc0ott
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Registered: 16th Feb 09
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Since light travels at a significantly greater speed than sound through air, an observer can approximate the distance to the strike by timing the interval between the visible lightning and the audible thunder it generates. At standard atmospheric temperature and pressures near ground level, sound will travel at roughly 343m/s (1125 ft/sec); a lightning flash preceding its thunder by five seconds would be about one mile distant. A flash preceding thunder by three seconds is about one kilometer distant.
Being smart is sometimes hard.
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Dom
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Registered: 13th Sep 03
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quote:
Originally posted by sc0ott
Since light travels at a significantly greater speed than sound through air, an observer can approximate the distance to the strike by timing the interval between the visible lightning and the audible thunder it generates. At standard atmospheric temperature and pressures near ground level, sound will travel at roughly 343m/s (1125 ft/sec); a lightning flash preceding its thunder by five seconds would be about one mile distant. A flash preceding thunder by three seconds is about one kilometer distant.
Being smart is sometimes hard.
Cheers for the wiki copy&paste there 
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John
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Registered: 30th Jun 03
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Copy pasting isn't though.
too slow 
[Edited on 01-09-2009 by John]
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sc0ott
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Registered: 16th Feb 09
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quote:
Originally posted by Dom
quote:
Originally posted by sc0ott
Since light travels at a significantly greater speed than sound through air, an observer can approximate the distance to the strike by timing the interval between the visible lightning and the audible thunder it generates. At standard atmospheric temperature and pressures near ground level, sound will travel at roughly 343m/s (1125 ft/sec); a lightning flash preceding its thunder by five seconds would be about one mile distant. A flash preceding thunder by three seconds is about one kilometer distant.
Being smart is sometimes hard.
Cheers for the wiki copy&paste there
http://en.wikipedia.org/wiki/Sarcasm
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sc0ott
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Registered: 16th Feb 09
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quote:
Originally posted by John
Copy pasting isn't though.
too slow
[Edited on 01-09-2009 by John]
http://en.wikipedia.org/wiki/Sarcasm
wiki answers everything.
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Ojc
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Registered: 14th Nov 00
Location: Reading: Drives : Clio 197
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scOott is deffo an older member.
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sc0ott
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Registered: 16th Feb 09
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im months older than 21 yes but not years.
or do you mean i have another account on here? if so, i dont.
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N3CRO
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Registered: 12th Apr 07
Location: Sandy, Bedfordshire
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quote:
Originally posted by marklawton
i always thought it was the time between the flash and the first sound of thunder
Me too.
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