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  2. History of the battery - Wikipedia

    en.wikipedia.org/wiki/History_of_the_battery

    The lead-acid battery is still used today in automobiles and other applications where weight is not a big factor. The basic principle has not changed since 1859. In the early 1930s, a gel electrolyte (instead of a liquid) produced by adding silica to a charged cell was used in the LT battery of portable vacuum-tube radios.

  3. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    A wet cell battery has a liquid electrolyte. Other names are flooded cell, since the liquid covers all internal parts or vented cell, since gases produced during operation can escape to the air. Wet cells were a precursor to dry cells and are commonly used as a learning tool for electrochemistry.

  4. Kenneth M. Swezey - Wikipedia

    en.wikipedia.org/wiki/Kenneth_M._Swezey

    Kenneth Swezey was born in Brooklyn on 11 June 1904. His mother, Carrie, was 42 at the time and his father, Edwin L. Swezey, was 47. He had a sister, Martha, who was 13 years older and a sister, Anna, who was 25 years older. [2]

  5. Penny battery - Wikipedia

    en.wikipedia.org/wiki/Penny_battery

    The penny battery experiment is common during electrochemistry units in an educational setting. Each cell in a penny battery can produce up to 0.8 volt, and many can be stacked together to produce higher voltages. Since the battery is a wet cell, the effectiveness will be reduced when the electrolyte evaporates.

  6. Voltaic pile - Wikipedia

    en.wikipedia.org/wiki/Voltaic_pile

    A number of high-voltage dry piles were invented between 1800 and the 1830s in an attempt to determine the source of electricity of the wet voltaic pile, and specifically to support Volta's hypothesis of contact tension. Indeed, Volta himself experimented with a pile whose cardboard discs had dried out, most likely accidentally.

  7. Leclanché cell - Wikipedia

    en.wikipedia.org/wiki/Leclanché_cell

    A 1919 illustration of a Leclanché cell. The Leclanché cell is a battery invented and patented by the French scientist Georges Leclanché in 1866. [1] [2] [3] The battery contained a conducting solution (electrolyte) of ammonium chloride, a cathode (positive terminal) of carbon, a depolarizer of manganese dioxide (oxidizer), and an anode (negative terminal) of zinc (reductant).

  8. Baghdad Battery - Wikipedia

    en.wikipedia.org/wiki/Baghdad_Battery

    The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...

  9. File:Experiments.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Experiments.pdf

    Original file ‎ (1,239 × 1,752 pixels, file size: 6.85 MB, MIME type: application/pdf, 26 pages) This is a file from the Wikimedia Commons . Information from its description page there is shown below.