Energy saltwater



This project is very easy to do!
Needed: An aluminum can. A sheet of copper foil of 0.3-0.4mm. Two insulating rubber spacers. An engine of a cd rom 2-3 volts, to be recovered from the inside of a PC. 1 liter of water with 3-4 tablespoons of salt for foods.The duration of rotation of the motor is approximately 7-8 minutes. When the salt water loses energy, it must be filled with fresh water and salt. For the success of this experiment it is necessary to have an engine that has a low power consumption 15-20 mA max and a voltage of 2-3 volts of a motor of a cd rom inside the pc. The use of engines for toys are not suitable for this type of experiment.
* The copper foil can’t be replaced with other metals.


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32 thoughts on “Energy saltwater

  1. is the voltage depends on the area of surface of the cooper and the can? and if we continously add the salt water when there's no more electricity how long the can will last?

  2. Does this operate based on the small slit in the folded sheet of copper foil which allows the salt water to fill the space between the exterior of the can and interior of the copper sheet?

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