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Answer to Question #84702 in Other Biology for harman

Question #84702
What material we can add to the electrocardiogram to Make more effective than the 19 century one
Expert's answer

Hi!

There is ambiguity in the question in my opinion, so I will list some information about materials in electrocardiograms. On the whole electrocardiography is a large, old and complex field that implies adding many up-to-date improvements, materials and machinery.

The first ECGs were recorded onto photographic plates, then they were replaced by ink tracers, and now thermal paper is widely used for tracing ECG.

Electrodes were connected to a patient's body through gauze napkins moistened with saline solution rarely, now those napkins are replaced by conductive ink.

A Lippmann (capillary) electrometer consisted of mercury and sulfuric acid, and was replaced by an Einthoven (string) galvanometer in 1901 that among other things contained a long taut silver-coated quartz filament.

Hope this works for you!

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