By: Jordan Clark, Jordan Hadden, Stephen Catignani

Summary of Design  At first we were going to spin the magnets inside of a toilet paper role with the copper wire wrapped around the outside of the cardboard.  This proved to be 100% inefficient, and our makeshift generator was embarrassed on the day it was tested a week and a half ago.

Summary Again  Then we decided to wrap the copper wire around a new structure, leaving most of the wire completely open to the spinning magnet.  We also used some wood in order to raise the windmill high enough to where the maximum amount of wind is caught from the fan.

Electrical and Mechanical  Electrical When the magnets are turning it conducts electricity do to the magnetic field created by the magnets and the wrapped copper wire. This then is able to light the light bulb. (Hopefully)  Mechanical The fan turns our “windmill” causing the magnets to then turn simultaneously due to the oily bearings.

Efficiency of the Shocker  Theoretical Yield : P = W / t; W = KE; v = L / t; m (air) = ρAL; A = πr 2  KE =.5mv 2 =.5ρALv 2 ;  P (air) = KE / t = (.5ρALv 2 ) / t =.5ρA(L / t)v 2  P (air) =.5ρAv 3  P (air) =.5(1.201)(π(.0889 m) 2 )(9.4 m/s) 3 = 12.38W  Produced Voltage : Volts = P / C = Watts / Amps  Watts = Amps(Volts) = 7mA(.4V) = 2.8mW =.0028W  Percent Yield : (.0028 / 12.38) * 100 < 1% 

Design Costs and Construction Issues  Costs Wood & Nails- $10.00 Magnets- $6.50 Copper Wires- $7.20 Fan Blade & Bearings- $0.00 Finding the only Radioshack© that still has magnetic wire in stock- Arm, Leg, First-born, Full-tank of Gas  Issues At first we though about spinning the magnet inside of a toilet paper roll, which proved to be unsuccessful Then the open wire was able to produce some voltage… hopefully enough

Conclusions  In the end, we learned how electricity can be produced with only magnets and copper wire and that a simple generator really isn’t that hard to build.  But it will take a lot of wire.