Experiments investigate changes in electric conductivity at melting points of metals, indicating significant increases in resistance.
The electric conductivity of metals has been observed to change very greatly at their melting point, the resistance being in many cases nearly doubled when the metal is fused. The experiments recorded in the following communication originated in an attempt to investigate more fully into this fact. The metals chosen for the first observations were tin and lead, both of which have their melting points at temperatures that can be readily obtained.
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Rainy et al. (1886) studied this question.
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