Author Topic: Burn pattern from a downed power line  (Read 2604 times)

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Offline TerraHertzTopic starter

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Burn pattern from a downed power line
« on: February 22, 2018, 07:41:54 am »
Not my photo. Original: https://9gag.com/gag/a7MZVKA

I guess everyone's seen these fractal burn patterns done deliberately on wood, using salt water. Then there's lightning fulgarites, but that's a different effect. This is the first time I've seen fractal burns happen in nature.

Makes you think. Makes you wonder... wire we here?
Collecting old scopes, logic analyzers, and unfinished projects. http://everist.org
 
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Offline ajb

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Re: Burn pattern from a downed power line
« Reply #1 on: February 22, 2018, 07:31:53 pm »
For the uninitiated: https://en.wikipedia.org/wiki/Lichtenberg_figure

There's a neat video from a company that produces these commercially, using an electron beam to charge pieces of acrylic: https://youtu.be/9Po35g23fYI
 

Offline PTR_1275

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Re: Burn pattern from a downed power line
« Reply #2 on: February 23, 2018, 12:28:10 am »
I have one of the acrylic “captured lightning” it is really really cool. It sits in a base with LEDs that light it up. They have a few other videos that I’ve seen and it’s pretty interesteing stuff.
 

Offline Gregg

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Re: Burn pattern from a downed power line
« Reply #3 on: February 23, 2018, 01:16:40 am »
Enclosed is a picture taken about 15 years ago of a pattern where a 12KV wire landed on wet concrete during a storm.  The concrete turned to black glass.  (No, my dog didn't do that; I've heard that comment numerous times.)
 

Offline rsjsouza

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Re: Burn pattern from a downed power line
« Reply #4 on: February 23, 2018, 01:23:02 am »
Looks like one of these fractals... Really pretty!
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Offline John Heath

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Re: Burn pattern from a downed power line
« Reply #5 on: February 23, 2018, 02:13:09 pm »
I found a picture of a fractal fossil. When lightening strikes sand it will melt the sand leaving a petrified record of a lightening fractal.
 

Offline John Heath

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Re: Burn pattern from a downed power line
« Reply #6 on: February 25, 2018, 07:01:00 am »
For the uninitiated: https://en.wikipedia.org/wiki/Lichtenberg_figure

There's a neat video from a company that produces these commercially, using an electron beam to charge pieces of acrylic: https://youtu.be/9Po35g23fYI

I as thinking of this video at work. If the acrylic is not discharge after electron beam exposure then it would have a permanent negative charge. Spinning this acrylic would mean spinning more electrons than protons as it has extra electron stuck in it's crystal matrix. That should lead to a rather impressive magnetic field at just 2 or 3 RPM considering the drift velocity of electrons at 100 amps in a thick wire is only a few m meters per second . It all depends on how many electrons are stuck in the acrylic. Hmm.
 

Offline james_s

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Re: Burn pattern from a downed power line
« Reply #7 on: February 25, 2018, 11:12:21 pm »
That's pretty cool. I think if I were younger I might seriously consider being a lineman. It's hard work for sure but I bet they see a lot of interesting stuff and they're not trapped behind a desk every day.
 


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