Austech




iTrader Today's Posts Donate My Posts Classifieds Site Rules FAQ's
Go Back   Austech > Technology > General Science
Register Members List Upgrade Account Search Today's Posts Mark Forums Read

General Science Chemistry, Astronomy, Geology, Biology and Physics

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 09-03-08, 09:57 PM   #1 (permalink)
Super Moderator
 
ssrattus's Avatar
 

iTrader: (0)
Join Date: Jan 2008
Posts: 1,207
Spent time on board: 3 Weeks, 5 Days and 8:49:29
ssrattus is on a distinguished road
Default Lichtenberg figures (captured lightning)

These look great! The "lightning" is permanently captured in the acrylic ball in the example below. It is lit from below to give it an almost real look.

Has anyone seen or played around with this in real life?



Quote:
Lichtenberg figure
From Wikipedia, the free encyclopedia

Lichtenberg figures (Lichtenberg-Figuren, or "Lichtenbergian Dust Figures") are branching electric discharges that sometimes appear on the surface or the interior of insulating materials. They are named after the German physicist Georg Christoph Lichtenberg, who originally discovered and studied them. When they were first discovered, it was thought that their characteristic shapes might help to reveal the nature of positive and negative electric "fluids". In 1777, Lichtenberg built a large Electrophorus in order to generate high voltage static electricity through induction. By discharging a high voltage point to the surface of an insulator, he was able to record the resulting radial patterns in fixed dust. By then pressing blank sheets of paper onto these pattens, Lichtenberg was able to transfer and record these images, thereby discovering the basic principle of modern Xerography. This discovery was also the forerunner of modern day plasma physics. Although Lichtenberg only studied 2-dimensional (2D) figures, modern high voltage researchers study 2D and 3D figures (electrical trees) on, and within, insulating materials. Lichtenberg figures are now known to be examples of fractals.

Source: Lichtenberg figure - Wikipedia, the free encyclopedia

See here for lots more info http://lichdesc.teslamania.com/
ssrattus is online now   Reply With Quote
Old 09-03-08, 11:12 PM   #2 (permalink)
Senior Member
 
nomeat's Avatar
 

iTrader: (0)
Join Date: Jan 2008
Location: A dunny in Mid North Coast NSW
Posts: 250
Spent time on board: 2 Days and 16:49:29
nomeat is on a distinguished road
Default

I have played around with Barry Manilow CDs in the Microwave.

With the right timing you can get a nice Lichtenberg effect but only in 2D of course.
nomeat is offline   Reply With Quote
Old 10-03-08, 12:18 AM   #3 (permalink)
Super Moderator
 
ssrattus's Avatar
 

iTrader: (0)
Join Date: Jan 2008
Posts: 1,207
Spent time on board: 3 Weeks, 5 Days and 8:49:29
ssrattus is on a distinguished road
Default

Quote:
Originally Posted by nomeat View Post
I have played around with Barry Manilow CDs in the Microwave.

With the right timing you can get a nice Lichtenberg effect but only in 2D of course.

Yeah have done that too....
ssrattus is online now   Reply With Quote
Sponsored Links
Old 10-03-08, 09:01 AM   #4 (permalink)
strange character
 
weirdo's Avatar
 

iTrader: (3)
Join Date: Jan 2008
Posts: 641
Spent time on board: 2 Weeks, 0 Days and 18:20:34
weirdo is on a distinguished road
Default

Quote:
Originally Posted by nomeat View Post
I have played around with Barry Manilow CDs in the Microwave.

With the right timing you can get a nice Lichtenberg effect but only in 2D of course.

Will that work with Barry White cd's aswell?
weirdo is online now   Reply With Quote
Old 10-03-08, 09:03 AM   #5 (permalink)
Super Moderator
 
ssrattus's Avatar
 

iTrader: (0)
Join Date: Jan 2008
Posts: 1,207
Spent time on board: 3 Weeks, 5 Days and 8:49:29
ssrattus is on a distinguished road
Default

Quote:
Originally Posted by weirdo View Post
Will that work with Barry White cd's aswell?

it works with rap, hip hop and that modern version of R & B quite well....
ssrattus is online now   Reply With Quote
Old 10-03-08, 12:09 PM   #6 (permalink)
Senior Member
 
trash's Avatar
 

iTrader: (0)
Join Date: Jan 2008
Posts: 336
Spent time on board: 2 Days and 16:32:17
trash is on a distinguished road
Default

Yes, the CD in the microwave trick is always fun.
There are a couple of other ways making different fractals in similar ways with different materials.

I have several lichtenberg figures. This is where I got my best ones from Technical description about how Lichtenberg Figures (or beam trees) are created
trash is offline   Reply With Quote
Sponsored Links
Reply



Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


server monitor
All times are GMT +10. The time now is 09:00 AM.


Powered by vBulletin Version 3.6.0
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.

Ad Management by RedTyger