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Updated: May 28, 2025
The hydrogen diminishes the value of the copper, the current grows weaker, and the cell is said to "polarise." It follows that a simple water cell is not a good arrangement for the supply of a steady current. The Daniell cell is one of the best, and gives a very constant current.
They have been forced to admit that these are the only factors which possess an influence sufficient to transform all the elements of a civilisation. They impose themselves on men apart from reason and have the power to polarise men's thoughts and feelings in one direction. Pure reason had never such a power, for men were never impassioned by reason.
Platinum wires connect with the zinc and mercury and form the poles of the battery, and the mouth of the glass cell is plugged with solid paraffin. As it is apt to polarise, the cell must not be employed to yield a current, and otherwise much care should be taken of it.
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