MadSci Network: Physics

Subject: Who discovered electricity and how do alarms work?

Date: Fri Apr 28 12:17:32 2000
Posted by Ari
Grade level: 4-6 School: No school entered.
City: No city entered. State/Province: No state entered. Country: Canada
Area of science: Physics
ID: 956942252.Ph

I am doing a science fair project on electricity. I am building a secret 
alarm system. I have information about it, but any more you could give me 
on why the alarm goes off when the switch goes down when you hit a trip 
wire would be very helpful. However, I do also need information on who 
invented or discovered electricity. Thank you so much.
By the way, my sister has used this site many times and says it rox!! so 
thanx a lot in advance!:-)  

Re: Who discovered electricity and how do alarms work?

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