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Frog Galvanoscope
11–19 of 19 posts
Re: Frog Galvanoscope
#12 >This research included the muscular response to opiates and static electricity, for which experiments the spinal cord and rear legs of a frog were dissected out together and the skin removed. In 1781,[5] an observation was made while a frog was being so dissected. An electric machine discharged just at the moment one of Galvani's assistants touched the crural nerve of a dissected frog with a scalpel. The frog's legs twitched as the discharge happened.
Re: Frog Galvanoscope
#13 > The major drawback of the frog galvanoscope is that the frog leg frequently needs replacing. The leg will continue to respond for up to 44 hours, but after that a fresh one must be prepared.Re: Frog Galvanoscope
#14It's ammeter not ampmeter?
Re: Frog Galvanoscope
#15Hey, I submitted this six years ago! ;-)
https://hn.algolia.com/?query=Frog%20galvanoscope&type=story...
Re: Frog Galvanoscope
#16It's ammeter not ampmeter?
Correct:
https://en.wikipedia.org/wiki/Ammeter
Technically Am-meter is short for Ampere-meter. To me Ampmeter sounds like a much cleaner contraction, but it is what it is.
Re: Frog Galvanoscope
#17Re: Frog Galvanoscope
#18Earlier quoted context omitted.
Yeah, if you couldn’t store chain saw fuel because it decomposed in 44h…
I don't know how difficult the process of skinning a frog leg is, but I imagine it's not too much effort to just keep some live frogs on hand and do that every two days. Easier than refining petrol anyway.
My point was petrol can be stored. It doesn’t decompose like frog legs do. Yes I get both are consumed, but one is through the use of the tool and the other is just rotting meat. It’s a strange comparison.
Re: Frog Galvanoscope
#19Are there people who make this old science stuff for presentations? I'd love to see these things in action.