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Battery

Battery

(Science: chemistry) a group of voltaic cells connected in series.


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Re: Photosynthesis Experiment - Do LED's work?

Hi, Does anyone know if using a battery powered LED light instead of an ordinary 40W bulb will work as well for a standard photosynthesis rate experiment? (we currently use a short section of Elodea in water and a lamp). Thanks Do these ...

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by GregoryStevens
Wed Sep 04, 2013 11:32 am
 
Forum: Botany Discussion
Topic: Photosynthesis Experiment - Do LED's work?
Replies: 8
Views: 6529

Re:

... all cases, charge is carried not by ions but by electrons. The body is a chemical machine, but it is not an electro chemical machine (i.e. a battery). Certain parts of it could be viewed that way, but the body as a whole does not cause a net separation of charge. Or at least, it is not known ...

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by JoshuaFlynn
Sun May 27, 2012 10:54 pm
 
Forum: Human Biology
Topic: Electromagnetic fields generated by the human body
Replies: 40
Views: 158600

Electromagnetic fields generated by the human body

... all cases, charge is carried not by ions but by electrons. The body is a chemical machine, but it is not an electro chemical machine (i.e. a battery). Certain parts of it could be viewed that way, but the body as a whole does not cause a net separation of charge. Or at least, it is not known ...

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by AstraSequi
Sat May 26, 2012 9:31 pm
 
Forum: Human Biology
Topic: Electromagnetic fields generated by the human body
Replies: 40
Views: 158600

Re:

... amount of charge it can hold (adding ionic compounds, like a layden jar), or C) Generating an electrical charge (like an aptly named 'electrolytic battery'). Fourth: It's this one . It has what appears to be a 12 volt DC fan on the inside, two removable filters at the back, what I suspect to be ...

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by JoshuaFlynn
Fri May 25, 2012 10:34 pm
 
Forum: Human Biology
Topic: Electromagnetic fields generated by the human body
Replies: 40
Views: 158600

Re: glass cuvette cleaning

... bubbler with a glass frit at the bottom of a tube immersed in liquid and contained in an outer glass tube. Air was drawn through the impinger by a battery-powered pump and airborne chemicals could be caught in the liquid. The liquid was sent back to the lab to be analyzed (GM/MS, ion chromatography, ...

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by jonmoulton
Tue Mar 06, 2012 4:50 pm
 
Forum: General Discussion
Topic: glass cuvette cleaning
Replies: 2
Views: 3160
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