How Luigi Galvani's Frog Leg Experiment Made a Dead Frog Jump & Invented the Battery
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- Опубликовано: 11 окт 2017
- How did Galvani frog leg experiment make a dead frog move? And how did that lead to the battery? And didn't Volta invent the first battery? Watch this video and learn the crazy story!
Special thanks to Dr. Francois Ferriere at the Universite de Rennes 1 for letting me use the frog videos! I really didn't want to kill a frog. The sequence of the electrified frog was made at the request of Christine Blondel and Bertrand Wolff whose video on Galvani and the frog (in French!) can be found here:
www.ampere.cnrs.fr/histoire/it...
Thanks to Kim Nalley for singing the Electricity song and the background music. 
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I am electrical engineer, and I just love this video. Thank you so much. This is exactly what we needed in my times but did not have. Now the younger ones are so lucky that they can watch such useful ideas explained with such simplicity and clarity.
Precisely what I was thinking, if they showed us this in school, how many more students would have been fascinated by stem!!
I have learned more watching your awesome videos than I ever did in High School. Thank you so much for doing the research and sharing it with us! ❤️❤️❤️
You didn’t mention it in your video so you inspired me to look up galvanic corrosion.
And now I have a perfect understanding of why I had to redo portion of the plumbing in my house. 😁
Just a little note: Alessandro Volta, not Alessandra. Alessandra is the female for Alessandro (male).
I'm enjoying a lot your videos! Thanks for sharing your researches!
Very specific point, but I would not say Galvani's frog was an invention, but a discovery. He discovered the effect of different metals with an electrolyte between them.
You are AMAZING! Thank you for making my love of science even more exciting with history. GREAT JOB!
1:48 "Anyway, there was a disected frog on the table".
The way you closed off that discussion 😂 ...
Recreating Galvani’s experiment as a part of our high school drama production, thanks for outlining it!
You are welcome. That sounds like an interesting school play!
Now I want to read Frankenstein. "It's Frawnkensteen!" What a morbid series of experiments. Absolutely fascinating, though.
Frankenstein is very different than the movies. I recommend. (although she doesn't have very much science)
Loved it. This video shows how complex science is, and how human emotions get involved in it. I am just sorry for all the frogs used to find out the secrets of electricity.
I am glad you liked the video. By the way, I feel really bad for the frogs too! That is why I am so happy to have been given permission to use someone else's frog video because I just couldn't stand killing a frog.
Thank u very much for this Kathy !
Muhammad Ghufran Janjua no problem. Glad you liked it
Just wanted to say thank you very very much for your series on the history of electricity. Just what I have been looking for quite some time. You answer all the questions that kept coming up for me. Done so very thoughtful and detailed, much appreciated. Enjoy your sense of humor as well, always makes learning more fun when paired with a little humor. Thanks again for a wonderful complete series. All the best to you and keep charging forward:)
Thanks Jan, that was so lovely and made my day. One thing, my series isn't complete it's going... and going... and going. - Kathy
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This video is amazing ! Thank you very much for making and publishing it!
So glad you liked it! Feel free to share it with friends and enemies. 😉
Excellent!
You gota love a guy named Luigi.
You must love Italy then ;p
'Now that's Italian'! I love it
Well summarized
Thank you for explaining this
This video is really cool! I'm going to show a part of it to my students, thanks!
So glad you liked it! What kind of class?
Kathy Loves Physics for a biology class about action potentials! Keep up the great work, I subscribed 😊
you helped me to increase my knowledge about electricity. and thank you for that kathy
kassahun leta you are welcome. Glad you liked it.
such charming informative videos
I'm just a regular Asian geek trying and Gilvani isbone of my idols in the field of science and med .
Huhuhu i hope my life won't be waste i am doing everything I can to contribute to science and write my name in history
Its great to find such an interesting vid.
So glad you liked it! I think Galvani's story is so interesting and usually ignored for Volta (as Volta made the useful battery). Anyway, thanks for commenting and feel free to share it. (also, make sure to watch the one about Galvani's nephew Aldini the real Dr. Frankenstein, unless electrifying dead people makes you ill :P)
Very interesting; keep making more videos
Sam S will do. Have made 34 and will probably do about 70-90 on this subject (history of electricity).
I love how much of science is driven by jealousy and the desire to humiliate someone else.
thank you for this great video. just subscribed
Guy .B.L thanks.
great video
Glad you liked it
it really helped me
Hi Kathy, great video! Looks like you are doing great with your tags. Got to be frustrating to have so many views but not a lot of Subs. I subed.
AvatarNews.Network thanks for subbing. Yeah I wish I had more subs but I think I’m better at videos than I am about working social media 😩.
The Baghdad Battery does share some similarities with modern batteries in terms of its basic components and the potential for generating an electric current. The combination of a metal cylinder (copper) and an acidic electrolyte (possibly vinegar or lemon juice) does resemble a simple electrochemical cell, similar to how modern batteries work.
However, it's important to note that the design and purpose of the Baghdad Battery, if it was indeed a functioning battery, would likely have been quite different from modern batteries in terms of scale, capacity, and intended use. The power output of the Baghdad Battery, if any, would have been very low and not comparable to the energy density of modern batteries.
Furthermore, the Baghdad Battery's exact function and whether it was truly used as a battery or for a different purpose remain uncertain. The artifacts discovered do not provide conclusive evidence of their original intent, and alternative theories have been proposed.
While the Baghdad Battery is often presented as a potential example of ancient battery technology, it's worth noting that no direct evidence has been found to confirm its use as a battery. The interpretation of the Baghdad Battery as a functioning battery remains speculative and subject to ongoing discussion and research.
Great video! Thank you! Just a little correction from an Italian fellow.. the name is AlessandrO (male) Volta, not AlessandrA (female) ;)
oops, I should have known that! Grazie
@@Kathy_Loves_Physics No big deal :)
The content is very interesting and useful anyway
I know a male Italian whose name is Alessandra. It surprised me, but Alessandra is not universally female.
@@peterbonucci9661italian male named Alessandra? Are you sure... When I was young I knew a guy named Alessandro, after many years He came out as a trans, portraing the character of Mary in the italian movie Mary per sempre, maybe now her name is Alessandra
@@waimar5457 Absolutely. He was a friend of mine.
I'm going to play that song every day in my class from now on
good idea! It is actually a cover of a schoolhouse rock video on electricity which is pretty good too (my friend actually knew the original artist)
I'm doing Physics college and the goal of the one of the subjects is to make a Physics class with Science History. Your video has helped me a lot! Thank you! Very nice way to learn Science :)
Wow haha seems majority of the viewers are physics major .
While i am just a nerd who is trying to figure out some fundamental discoveries in science .
@@odingvirtue166, stand in the same way hehehe :)
I just love your chanell ...it's on physics' history ...I will learn a lot from this inhsallah 🌸after mine exams. .💫🖤
Agree, so many great examples of 'accidental' discovery in this series. I was wondering Kathy, do you think it was the frog or the scalpel that got accidentally charged up by the nearby electricity machine? Must it have been the frog, because the scalpel being a conducter would have discharged as soon as it was picked up? Also evokes a nice image of a 1700's science lab: anatomy and electricity going on the same bench etc.. :)
I think that the static electricity machine was connected to a metal stick but was held by an insulating material (wax?) and that was placed on the dead frog probably as a joke as they had previously been electrifying live frogs. Just a guess from the limited information that Galvani gave
OMG that's cool. WOW
Mrs. Kathy your suspense is on par
Um... thanks?
We may measure batteries in volts, but we do it with a galvanometer. In your face, Volta!
Were you deliberately quoting from "Frankenstein" with that "spark of life" line? Some of the movie versions of "Frankenstein" are pretty good about giving the historic background. There had been preliminary successes in resuscitation, and it appeared by the science of the time that we were much closer than we turned out to be at achieving reanimation, artificial life, or some other major breakthru at understanding the nature of life.
nice video
Thanks
this is good
htet zaw so glad you liked it
That was galvanizing.
How did the frog legs kick when they were hanging from the fence, when there were clear skies? I saw that the leg was hanging by its nerve, from a copper hook, but there was still no circuit formed. Or was there actually another wire attaching the end of the leg to the fence, closing the circuit?
Good question, the legs were tied with copper and the fence was iron, but the completed circuit is in the frog's leg. Does that make sense?
The illustration here shows it. He previously hung the frog leg from the fence by a copper hook. In this illustration, he laid the frog leg right on top of the fence, and left the hook dangling from the frog's spinal cord. When he allowed the hook to swing sideways and touch the metal fence, he completed the circuit and the muscle contracted. ppp.unipv.it/Mostra/Pagine/Frame%20S4/FrameS42.htm
This question-and-answer needs more upvotes.
It was raining frogs, Luigi !
bodgertime now that is biblical
Yeah, but what about frogs connected in series to make a battery?
Our brains are the most electric muscle in the body. I know. Shocking! Right?
That was a time when amphibians like frogs and the like were plentiful, before the species decline due to pesticides and loss of habitat.
There are plenty of frogs ar our place. When we moved to our property we didn't hear any frogs. We didn't use any chemicals, and didn't graze anything on it for three years. The frogs came back. Now they can be heard all year round, even in our winter.
how did the frog become a battery 🔋?
thumps up
Alessandro Volta, not Alessandra.
Kathy, I love you for light that you are and the work you are doing, but we've got work on that energy level! I believe you'll attract more attention with less of an actor's face and more of yourself. Kids also respond better to what's real. I also suggest less distracting music, soft ambient music seems most fitting. Again, thank you for the history lesson, it was most interesting! 🙏
Timeless Perspective I’m glad that you liked it. Will work on the music.
Thank you for the great video.
On an historical note, I don't agree on the fact that Galvani invented the battery.
Galvani setup an experiment that involved the use of a battery, where two different metals were the cathode and anode respectively, and the electrolyte was constituted by the bodily fluids of the dead muscle.
Galvani's explanation including "animal electricity" was totally incorrect. Alessandro Volta grasped the true chemistry going on there, and build the battery without the dead animal parts.
Galvani may have incidentally built a functional battery, but he wasn't aware of it.
Current history attributes the invention of the battery to Volta, with reason; it is an attribution with which I concur. I did a search following your video - at the University of Pavia with which Volta was associated - but things are standing the way they always had: Volta is still the inventor of the battery.
Regards,
Anthony
that sounds exciting about that frog 🤨🙂
This is what my physics class is lacking
I had to research this for stupid school
lol
Trying to come up with a good crunchy frog joke...
hrmm.
What caused the frog to dance? A slightly galvanic encounter.
i would eat that from meh boi
i mean i would eat the frog
#:-)
Nadia loves Kathy loves physics ;)
Thanks Nadia! I love you too.
wished the story was temporally linear. how do i jump from lightning rods to 1790?
It turns out that I did miss a person that links Franklin to Galvani, the world's first female professor, Laura Bassi. I am working on a video about her right now and should have it out by next week.
@@Kathy_Loves_Physics cool! did she know hume or faraday?
solarwonder she died before faraday. Here is the video ruclips.net/video/c-5CEB3sBEo/видео.html
*Real life* isn't linear. See the *Connections* TV series. Toward the end, narrator James Burke recaps by giving a few *alternate* pathways the discussion could've taken. The point being that everything's connected, and the connections aren't necessarily or neatly temporal.
For instance, someone could take the discussion from here to electroplating, and thence to metal cans, and from canning to autoclaving, and from autoclaving back to pressurization, and so on back and forth in time and across disciplines and tying in historic events.
Will a dead praying mantis revive from this experiment?
It will move a bit, but not come back to life
Is it scientifically prooved or controversy now yet
i wounder if Kathy loves physics :/
Kerion Seaforth if I don’t then I picked the wrong RUclips name 😉
Well, Galvani got a coil and a meter in his honour, so he gained everlasting fame too.
And the term “galvanized”
@@Kathy_Loves_Physics well yes that too!
Lol
electricityyyyyeeee electricity
Just a film tip, make sure the top of your head is at the top of the frame. This is called headroom. Trust me im a FILMAKER.
Will do (in later videos) thanks for the heads up (sorry for the pun)
Speaking of the top of your head, assuming you didn't do all these in one session with some costume changes, I'm forced to conclude you *deliberately* adopted that frizzy look.
I watched this in school
electricity
yaaaaaaaaa i eat frogs
What next part 2?! 😠😡🤬😤😒💢😈
What I'd like to know is, when will modern science come up with a battery that lasts longer than what we've got now?
Electric cars and motorcycles all have extremely limited range entirely due to their inferior batteries. This alone is what's keeping electric vehicles from being practical and mainstream.
Everything about transportation has evolved except the battery. The most innovative thing that's happened to automotive batteries in the last quarter-century is simply going from a "wet" battery to a sealed battery. And it's still disappointingly weak and frustratingly short-lived.
Great content has hardly any views!! Fools may be in majority
Show off with that stupid battery 😠😡🤬😤😒💢
Yep. This guy is my grandfather. He is a cool guy.
Yes it is a stupid useless battery 😠😡🤬😤😒💢😈
Show off with your stupid battery 😠💢🤬😡
Please get rid of the background music. It's of no value to anyone and marks you as an ametuer presenter. You are spoiling your otherwise wonderful videos.