Tyndall, John, 1820-1893 · New York, D. Appleton · leaf 265
compound wire, some spaces appear white-hot, withdark spaces between them. The white-hot portions ofthe compound wire are platinum, and the dark portionsare silver. The electric current breaks, as it were, im-petuously upon the atoms of the platinum, while it glides,with little resistance, among… … table, consists, as you know, of a coil of platinum wire,suitably attached to a brass stand. On sending a currentthrough that coil we cause it to glow. Into the circuitare also introduced two additional feet of thin platinumwire, and, on establishing the connection, both it and thelamp are raised…
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