Comments on: Richard Box’s ‘Light Field’

By: Police

Police — Fri, 05 Mar 2010 10:58:37 +0000

Learn to spell “lightning”

By: Lighting for your next party…. - electronicramblings.com

Lighting for your next party…. - electronicramblings.com — Sat, 11 Apr 2009 02:01:47 +0000

[...] Field of lights Hackaday article on Field of lights Another link but with more picutres [...]

By: lynne

lynne — Wed, 17 Oct 2007 01:47:46 +0000

however, from what i’ve been told… the power company sued him and *lost* the case.

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By: Darkflame

Darkflame — Tue, 04 Sep 2007 12:06:01 +0000

“industry scientists only present the facts about EMFs that are beneficial to their financial interests.”

Yes, because no sciencetist would ever live anywhere near powerlines…..

By: Daniel

Daniel — Wed, 15 Aug 2007 12:19:19 +0000

I couldn’t understand some parts of this article , but I guess I just need to check some more resources regarding this, because it sounds interesting.

By: Daniel

Daniel — Fri, 10 Aug 2007 11:01:47 +0000

I have to say, that I could not agree with you in 100% regarding , but it’s just my opinion, which could be wrong

By: Xenu

Xenu — Sat, 28 Jul 2007 05:11:27 +0000

The fact that power lines create an electric field of sufficient magnitude to reach the ground doesn’t make me too thrilled to be anywhere near them in the future. Better safe than sorry, and I’m sure government and industry scientists only present the facts about EMFs that are beneficial to their financial interests.

By: Josh

Josh — Wed, 06 Jun 2007 16:12:12 +0000

Sorry Shaul. That’s not quite correct logic. By introducing conductors you are inductively “connecting” those bulbs to the power line and are drawing energy from it, just like SimpleInduction said in his post.

The exact same thing happens in your home with pretty much every single electronic device by the use of transformers, such as your power bricks. Unless your device directly runs on 110V/220VAC there is not a direct copper path between your device and the wall. The wall current runs through a set of transformer coils, the primary winding, which inducts a current on the secondary winding which then runs to your device, never once having a complete conducting path between them.

The idea is that the changing electric field (this is why we use AC rather than DC) induces an EMF which opposes this change in nearby conductors. This EMF sets up a current in the conductor which then produces an EMF at the power-line which opposes the flow of current in the line. In the same manner that the power-line produces a force on the electrons in the bulbs, the bulbs produce a force on the electrons in the power-line pushing them backwards, so more energy is needed to keep them moving. This energy comes from the power company.