Comments on: Soil Powered Lamp: A Fresh Take on “Dirty Energy”

By: gg

gg — Fri, 03 Jul 2009 06:43:05 +0000

the residu from the chemical reaction arent that green either.

By: shwetarhul

shwetarhul — Sun, 03 May 2009 16:04:24 +0000

This is cool stuff!!

By: Pandele

Pandele — Fri, 13 Mar 2009 18:43:20 +0000

Just as Gregb said, this is copper-zinc battery. It only uses earth for having water and salts. The energy comes from the metal plates themselves (the electrons migrate from one plate to another, gradually consuming one of the plates). Just as a car battery works. Producing copper and zinc is still energy consuming so this is a real hoax.

By: gregb

gregb — Fri, 13 Mar 2009 05:19:08 +0000

Sorry, this is nothing more than a copper-zinc battery. The kind kids make by stacking pennies and nickels together with a bit of salt water as the electrolyte. Once the two metals finish corroding, the battery will stop working. Its neither an endless source of energy or based on soil microbes- and when you include the cost of smelting the copper and zinc, a huge waste of the planet’s resources.

By: aintdeadyet

aintdeadyet — Fri, 13 Mar 2009 03:52:16 +0000

So I understand this as the same tech that kids in science classes everywhere use to make potato or lemon batteries?

By: crackgerbal

crackgerbal — Thu, 12 Mar 2009 17:12:24 +0000

These light bulbs are pretty cool. I could see this on front porches near peoples homes. Wonder how long before they are mass produced.

By: davidwayneosedach

davidwayneosedach — Thu, 12 Mar 2009 14:11:01 +0000

These soil lamps are certainly intrigiging. If they could be mass produced I’m sure they’d find a ready market today!