Comments on: Lemon Battery http://www.sciencebase.com/science-blog/lemon-battery.html Science Blog from Freelance Science Writer David Bradley Thu, 09 Feb 2012 08:25:37 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Joann http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-2#comment-636232 Joann Thu, 18 Feb 2010 21:30:18 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-636232 Two lemons are usually sufficient to light an LED. I bought an assortment of LEDs and found that the red ones seemed to have the lowest current draw. Miniature red LEDs require even less current and are brighter. A piece of 12 or 14 gauge bare copper wire and galvanized (zinc coated) nails work well. The copper may be cleaned with steel wool and reused. The nails lose their zinc coating and must be replaced. Copper and zinc strips, sold by scientific supply companies are more substantial and may be used over and over again. Two lemons are usually sufficient to light an LED. I bought an assortment of LEDs and found that the red ones seemed to have the lowest current draw. Miniature red LEDs require even less current and are brighter. A piece of 12 or 14 gauge bare copper wire and galvanized (zinc coated) nails work well. The copper may be cleaned with steel wool and reused. The nails lose their zinc coating and must be replaced. Copper and zinc strips, sold by scientific supply companies are more substantial and may be used over and over again.

]]> By: David Bradley http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-2#comment-558652 David Bradley Mon, 13 Oct 2008 06:48:44 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-558652 Blah...yeah it does. It will fail for nincompoops though, I'm sure. Blah…yeah it does. It will fail for nincompoops though, I’m sure.

]]> By: Blah http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-2#comment-558380 Blah Sun, 12 Oct 2008 23:20:18 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-558380 This does not work it is poppycock This does not work it is poppycock

]]> By: David Bradley http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-2#comment-363219 David Bradley Mon, 17 Mar 2008 09:10:10 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-363219 Henry, looks like nonsense to me. db Henry, looks like nonsense to me.

db

]]> By: Henry http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-1#comment-362011 Henry Sat, 15 Mar 2008 13:56:32 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-362011 Well, better to search for more lemons with "higher voltage"! I recently visited a blog about science which captured a bit of my attention. Only perfect thinkers can grasp the main idea behind some poetries which were presented ironically. Check this out: http://mysteriousscience.blog.com I don't know why the author named it as "mysterious" - well, really mysterious! Well, better to search for more lemons with “higher voltage”!

I recently visited a blog about science which captured a bit of my attention. Only perfect thinkers can grasp the main idea behind some poetries which were presented ironically. Check this out:

http://mysteriousscience.blog.com

I don’t know why the author named it as “mysterious” – well, really mysterious!

]]> By: David Bradley http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-1#comment-361046 David Bradley Fri, 14 Mar 2008 15:11:04 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-361046 Yes, sounds about right. My 13y old son would see that as a challenge blending his love of football with his love of lasagne ;-) db Yes, sounds about right. My 13y old son would see that as a challenge blending his love of football with his love of lasagne ;-)

db

]]> By: Jon http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-1#comment-360967 Jon Fri, 14 Mar 2008 12:45:04 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-360967 According to the entertaining and informative program QI, you can get a current from a ready-made lasagne, or indeed any edible electrolyte with suitable "oomph". If i recall correctly, however, they said you'd need a lasagne the size of a football pitch to light a bulb. - Jon According to the entertaining and informative program QI, you can get a current from a ready-made lasagne, or indeed any edible electrolyte with suitable “oomph”. If i recall correctly, however, they said you’d need a lasagne the size of a football pitch to light a bulb.

- Jon

]]> By: David Bradley http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-1#comment-357585 David Bradley Mon, 10 Mar 2008 14:20:38 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-357585 When I worked in the US, which is two decades ago, we rented a car from a place called Lemon Rentals, no one was surprised that it broke down after just ten miles. db When I worked in the US, which is two decades ago, we rented a car from a place called Lemon Rentals, no one was surprised that it broke down after just ten miles.

db

]]> By: Johnx http://www.sciencebase.com/science-blog/lemon-battery.html/comment-page-1#comment-357584 Johnx Mon, 10 Mar 2008 14:15:52 +0000 http://www.sciencebase.com/science-blog/lemon-battery.html#comment-357584 Ahhhh! I knew the Prius was a lemon car! There are laws about lemon cars. Ahhhh! I knew the Prius was a lemon car!

There are laws about lemon cars.

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