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  2. Lemon battery - Wikipedia

    en.wikipedia.org/wiki/Lemon_battery

    A lemon battery is a simple battery often made for the purpose of education. Typically, a piece of zinc metal (such as a galvanized nail) and a piece of copper (such as a penny) are inserted into a lemon and connected by wires.

  3. Galvanic cell - Wikipedia

    en.wikipedia.org/wiki/Galvanic_cell

    In the strictest sense, a battery is a set of two or more galvanic cells that are connected in series to form a single source of voltage. For instance, a typical 12 V lead–acid battery has six galvanic cells connected in series, with the anodes composed of lead and cathodes composed of lead dioxide, both immersed in sulfuric acid.

  4. Wikipedia:Reference desk/Archives/Science/2010 June 4

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    The picture clearly shows the two electrodes are made of different metals, so I would imagine it works in a similar way to a lemon battery. In the normal use of the device, the electrodes will be eroded (that's how it works - see the article I linked to), so leaving it in the soil will drastically reduce its working lifetime.

  5. Talk:Lemon battery - Wikipedia

    en.wikipedia.org/wiki/Talk:Lemon_battery

    I assembled 4 cells, alternating washer, paper, copper, and stacked them together into a battery, being careful not to let the paper short circuit the cells. I placed some pieces of cedar shim on the top and bottom of the stack and clamped the whole assembly together tightly. I tested the battery with a yellow LED in series with a 66 ohm resistor.

  6. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2] The terminal marked negative is the source of electrons.

  7. Chick-fil-A's lemon-squeezing robots cut over 10,000 labor ...

    www.aol.com/chick-fil-lemon-squeezing-robots...

    Chick-fil-A's lemon-squeezing site north of Los Angeles has cut nearly 10,000 hours of work per day by processing lemons into lemon juice later used for lemonade.

  8. 2 Oregon men found dead from exposure in forest while looking ...

    www.aol.com/news/2-oregon-men-found-dead...

    A family member reported the two men missing to Skamania County police at around 1 a.m. on Dec. 25. A “grueling” three-day search was conducted for the men as over 60 volunteer search and ...

  9. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.