*** Youtube/Video thread ***

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I'm no expert but I would guess the high power of the lines is able to conduct through the really low conductivity of the branch until it gets so hot and burns off and is no longer conductive at all or...the power is cut.

I guess :D
 
Sin_Chase said:
I'm no expert but I would guess the high power of the lines is able to conduct through the really low conductivity of the branch until it gets so hot and burns off and is no longer conductive at all or...the power is cut.

I guess :D
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Yeah that makes sense :p it's just the bit at the end where it seems to vapourise that seems weird :confused:
 

A quick time lapse video I took while driving in Wales last week. Testing out the Camera Magic app on the HTC Desire. Limited to 99 frames each session but you can just keep taking them once the last one finishes.

You'll have to excuse the text clipping as the embedded version doesn't seem to work to well with widescreen format video.
 
Lakeland said:
Yeah that makes sense :p it's just the bit at the end where it seems to vapourise that seems weird :confused:
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What happens is the very high voltage in power lines allows a current to flow across the plank - creating a short circuit. The plank heats up and sap vapourises. The plank then catches fire and breaks, raising its resistance enough to stop the current of electricity however the previously vapourised sap is very very hot and is actually ionised (this is plasma). This then provides a pathway for the current but only lasts a few seconds until the sap cools down/loses charge/ is dispersed by the wind

Obligatory youtube - mad skills

 
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