this post was submitted on 05 Jul 2026
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How hard would it be to Dr stone a 120v live outlet?
About half as difficult as it would be for the 220/240V one it needs.
Yay, finally an advantage of the US electric grid.
That outlet is clearly a NEMA 5-15, so 110-120V
There's no ground. They're in Japan. It's 100V.
There's clearly a ground on the wall receptacle?
You know what, Mr. Guy with your logic and your facts, who do you think you are? You know that? Smh my head.
Yes, it is - and what I said was "clearly" a joke, as the idea that 120V would be half as difficult as 240V should have given away. Lighten up, my friend - life's more fun when you do.
Whatβs there to lighten up about? I was just trying to be informative with the correction, since it does not need what you said it needs. Have a good one βΊοΈ
Likewise, TY.
there was an episode where they created a dynamo generator and batteries.
that took them something like six months with many people helping.
unfortunately dynamos(like above) and batteries work on DC current. that time machine works on AC.
so you would need to do two things.
also consider that north American standards require electricity to run at 60hz. this means the AC signal flips the DC signal 60 times per second. creating a mechanical inverter would need to take into account the size of the circle for a complete rotation in 1 second as well as the speed at which the dynamo must spin in order to get 60 alterations per second. the rough formula would look something like:
frequency = speed/(diameter*3.14). speed can be variable depending on the size of the copper wheel used as well.to sum everything up, for just the two people there, it's probably going to take them too long and they'll die from exposure or predators.
get excited
someone tried making one of those, barely got any voltage. not enough for a US socket. :(
they probably needed to add more magnets, but that would have made it more difficult to spin. not only, the faster you spin it the more charged the plate becomes and more resistance you'll feel.
they could use dinos rather than manpower
Dino-mo
I think you underestimate the effort it would take to domesticate something that never had any interaction with intelligent beings.
haven't you watched any Flintstones?
looks easy
I love that documentary!
the dinos would get you first so very.
not if I tell them that eating us will mess with history and cause unpredictable outcomes.
βWill it change the path of an asteroid?β
βWell, probably not.β
Chomp
maybe?
After learning of new technology and a warning, they developed a space program.
The present is no longer a primate civilizations fighting each other and destroying the planet, instead a saurian civilisation has spread through the galaxy.
That's not how the butterfly effect works. Also no shot these 2 dunderhead could make that work.
the point of the butterfly effect is that even if they are there for a moment, they already messed up the timeline, but that is how it works in pop culture
Assuming Dr. Stone is some kind of MacGyver regen:
Two obvious approaches to me that I'll run through in high level: build a wind/watermill generators or potato/lemon batteries
First thing you'll need to figure out for both is how to make some wire. That's going to require finding some metal ore and a hot furnace, and creating a few tools out of stone to work with it.
The biggest difficulty with the former two is going to be finding some ferrous metal to turn into magnets. You can make a magnet without electricity by smashing the shit out of some iron as it's aligned with the earth's magnetic field, and it'll become a weak magnet. From there with enough wire, you can build a generator. With the sails of the mill, you can build that out of wood and foliage.
For potato or lemon batteries, you're going to need a shitload, as they give you about a volt and a pretty tiny current, but theoretically you could figure something out that way with enough. I imagine some things may want to eat your batteries though
Dr. Stone is an anime about humanity being thrust back into the neolithic and a genius kid developing a nation of science to save the world by speedrunning the technology tree.
spoilers
They do exactly what what you mention!https://www.imdb.com/title/tt9679542/
But where in the backstory did every girl on the planet get gene-spliced with a hammerhead shark?
These two ingredients put our 120v dynamo really far up the tech tree from "make fire." Our intrepid time travelers are going to spend years trying to not be velocaraptor food and foraging for a meal themselves, all while making stupendous amounts of charcoal and prospecting for ore.
Oh don't get me wrong, our intrepid adventurers are going to have to spend a good chunk of time on this with no guarantee they live long enough.
However assuming knowledge isn't a gap (given they already built a time machine), iron ore is fairly abundant in many areas of the world, and it's relatively straightforward to build a kiln that would reach the appropriate temperatures to smelt the iron into bloom (that can be hammered into workable iron)
It'll take many, many years, but assuming they can avoid ending up as food, it doesn't seem impossible
Your lemon batteries will be DC tho. I think step one would be to start carefully dismantling the Time Machine to see what it really needs and what parts might be unneeded and reusable in a generator.
Step 1 then: make tools
don't forget there are dinosaurs. use them for work, probably easier than a water wheel.
What about making a capacitor and charging it with a lightning rod?
Fire
my favourite trope in media, The season long enemy becomes a close ally at the end. And the hero just accumulates friends as if they were PokΓ©mon.
MLP, Dr Stone, Dragon Ball.
need more of that.
Like being hungry and being presented with a plow. Now what?
Thatβs going to depend entirely on how good you are at finding and smelting copper with only Stone Age technologies.
watch Ruri Rocks before time traveling.