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File:Experiment for Observing the Negative Variation.jpg

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    English: Du Bois-Reymond's experimental apparatus to observe the "negative variation" in resting current, or action potential. A frog calf muscle rests across two pads of blotting paper soaking in saline and attached to a galvanometer (not shown). Faradic shocks flow down wires attached to electrodes that stimulate the frog nerve.
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    Reproduction of illustration in Emil du Bois-Reymond's "Investigations in Animal Electricity," 2 vols. (Berlin: Reimer, 1848–1884)

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    current17:59, 23 September 2023Thumbnail for version as of 17:59, 23 September 20237,705 × 5,419 (18.8 MB)LovelyOliveGreenUploaded while editing "Emil du Bois-Reymond" on en.wikipedia.org

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