This book Tells you how to handle this, along with everything else you need to know to rebuild all systems in society from scratch should there be some sort of time machine based accident. It’s a good read!
incredible
Submitted 8 months ago by neutralbipolar2@lemmy.world to [deleted]
https://lemmy.world/pictrs/image/ccecb3b5-dbae-48d3-8e4a-f685148e415a.jpeg
Comments
Squeezer@lemmy.world 8 months ago
FlyingSquid@lemmy.world 8 months ago
Squeezer@lemmy.world 8 months ago
That looks fascinating! Pricey on the second hand market it seems. I’ll have to shop around. Thanks, great counterpoint.
HeyThisIsntTheYMCA@lemmy.world 8 months ago
The fact that neither of these is the hitchhikers guide to the galaxy makes me weep for mankind. Where’s my overpass!?
hemko@lemmy.dbzer0.com 8 months ago
There’s also [The Knowledge: How to Rebuild Our World from Scratch](!wiki The Knowledge: How to Rebuild Our World from Scratch) by Lewis Dartnel. Great book
dutchkimble@lemy.lol 8 months ago
This is good stuff!
dutchkimble@lemy.lol 8 months ago
Edit - now i need a big ass tattoo and a time machine
orphiebaby@lemm.ee 8 months ago
I read this recently. It’s great, though I think it could give clearer instructions with more diagrams, and cover some subjects a lot better
CADmonkey@lemmy.world 8 months ago
Let’s see… electricity in a preindustrial environment. You’ll get into Factorio levels of invent a tool to make a tool to make a tool…
Copper wire existed at the time, (depending on the time period) but drawing it involved a person on a swing pulling it through a hole in a metal plate. So we need a metal plate. Surely there is a town blacksmith? We will need a few plates with gradually decreasing hole diameter. Enough wire for a demonstration would be difficult and expensive, but not impossible. Could also use copper busbars instead of wire.
Now that we have conductors, we have to figure out what method of generation we want. Rather than trying to make bearings, balanced shafts, and stacks of thin metal plates all identical and radially symmetrical so we can make a generator, we should first attempt a battery. For this we can get away with stacks of two dissimilar metals in a glass or ceramic jar, bathed in some sulfuric acid. Aqua Regia was a mixture of nitric acid and sulfuric acid, but it might dissolve copper and zinc plates. Could also use lead plates, those are easier to hammer out flat. With this we could get an output around 2v per cell, put a half dozen of them together in series and one could build a simple arc lamp.
After the proof of concept demonstration, hopefully you’d interest more smiths in the project, increasing your talent pool. With some mercury and wire you could build a version of Faraday’s homopolar motor.
After that I’d probably be burned at the stake.
driving_crooner@lemmy.eco.br 8 months ago
I just know a guy who sell copper.
PP_BOY_@lemmy.world 8 months ago
Your guy wouldn’t happen to be named “Ea-nasir,” would he?
bingbong@lemmy.dbzer0.com 8 months ago
No, that won’t do. Unless you want to travel through enemy territory all for some shitty copper.
lapommedeterre@lemmy.world 8 months ago
We need some sorta optimal pathing tech tree.
Honytawk@lemmy.zip 8 months ago
It isn’t so hard really, to make electricity even in the olden days.
A dynamo is just a copper wire with a magnet spinning inside.
Making a copper wire you can accomplish by having a hole at the bottom of a kiln that drops directly into a big vat of water. Or even just drawing a line in the sand and pouring it in there.
Getting your hands on a natural magnet might pose more problems, but ultimately those are found in nature. So they should have already been dug up by someone.
Using the electricity usefully is harder. Since creating a light bulb needs access to gasses. What could we even use the electricity for?
Marcbmann@lemmy.world 8 months ago
If you can make a dynamo, you can make a motor. Now, you aren’t about to create Tesla. But there’s plenty of things back in the day that could benefit from being motorized.
Comment105@lemm.ee 8 months ago
Could you also do ac/dc conversion ti make the electricity useful elsewhere? I’m guessing charging and transporting primitive batteries won’t be able to fulfill any useful purpose at all.
Rubanski@lemm.ee 8 months ago
Also making carbon Zink batteries should be possible, so a handheld fan would definitely be a possibility and would already be mind blowing
dustyData@lemmy.world 8 months ago
You can create light with electricity with two carbon rods to make an arc light. It was literally the first electric light source and in widespread use for a long while, along with incandescent bulbs.
Comment105@lemm.ee 8 months ago
You just invented cumbersome fire. Ugh ugh. No good.
NOPper@lemmy.world 8 months ago
You use it to charge your phone, duh.
HardlightCereal@lemmy.world 8 months ago
You should watch Dr Stone
Destraight@lemm.ee 8 months ago
This is exhilarating
CADmonkey@lemmy.world 8 months ago
You can run a carbon arc lamp without glass bulbs, and without a huge voltage.
PersnickityPenguin@lemm.ee 8 months ago
Electrocuting elephants?
FlyingSquid@lemmy.world 8 months ago
There was a short story I read ages ago in some collection somewhere I’ve been dying to find. I think it was from the 60s or 70s, but a scientist brings a man from the future and the man is just a normal guy, so he can’t explain anything to the scientist’s satisfaction and the scientist gets more and more exasperated.
The dialogue was like:
“What is the dominant mode of transport in the future?”
“Oh, we fleem.”
“Fleem? What’s fleem?”
“It’s a kind of garbol but with more slimp.”
“Okay, never mind. How do you do it?”
“Oh, that’s easy, you simply merfingle the blem and you’re fleeming away!”
“WHAT IS THE BLEM?!?”
ArianaGrande@lemmy.world 8 months ago
Yooo, this sounds funny as frickin heck. Anyone knows this?
FlyingSquid@lemmy.world 8 months ago
I’ve been trying to find it again for like 2 years now and asked in a lot of places. No luck.
MiddleWeigh@lemmy.world 8 months ago
I feel like I definitely read that in middle/high school
Ddhuud@lemmy.world 8 months ago
You doin a magnet near a loop of wire
jarfil@lemmy.world 8 months ago
Is this a repost? Hase lemmy already entered the repost phase?
Sami_Uso@lemmy.world 8 months ago
I mean, could you imagine? The horror…
PatFussy@lemm.ee 8 months ago
Say no more, ill repost it 1 more time in your honor
niktemadur@lemmy.world 8 months ago
Watch this Jim Al-Khalili documentary for the BBC, then jump into the time machine.
PipedLinkBot@feddit.rocks [bot] 8 months ago
Here is an alternative Piped link(s):
this Jim Al-Khalili documentary for the BBC
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Roderik@lemmy.world 8 months ago
Love this documentary! My professor made my class watch this and I must say that all of it just clicked.
x4740N@lemmy.world 8 months ago
Just bring an encyclopedia with you, history of human advancements and history of human equality if you want to improve equality as well
OppositeOfOxymoron@infosec.pub 8 months ago
Carlo@lemmy.ca 8 months ago
Such a good book. Wish it would stop being relevant.
PatFussy@lemm.ee 8 months ago
If you went back in time and tried this, most civilizations would probably burn you at the stake
oo1@kbin.social 8 months ago
DataDisrupter@feddit.nl 8 months ago
Part of that image is cropped, just below the diagram of the wing. That’s going to be an interesting test flight!
TimewornTraveler@lemm.ee 8 months ago
try this instead rebuildingcivilization.com/…/lets-say-youve-gone-…
WarmSoda@lemm.ee 8 months ago
For anyone interested a simple way is to wrap copper wire around a magnet. Static electricity was also one of the first ways people started noticing electricity.
Parlor tricks might be able to get you far when you time travel to the ancient part.
Pizzasgood@kbin.social 8 months ago
Wrap it in the wire, then spin one of them. That part's important! Won't do anything if you don't spin it.
Obi@sopuli.xyz 8 months ago
He’ll be fine as long as he has a cat and buttered toast.
WarmSoda@lemm.ee 8 months ago
This man knows the power
PipedLinkBot@feddit.rocks [bot] 8 months ago
drekly@lemmy.world 8 months ago
Hopefully they have manufactured copper wire for you
WarmSoda@lemm.ee 8 months ago
My slaves will make it
TrickDacy@lemmy.world 8 months ago
Did you skip 3rd grade (and all other) science class?
Elivey@lemmy.world 8 months ago
I mean, from this thread it shows people kinda remember stuff from those classes, but are missing a lot. Which is understandable, people left school and didn’t use that information, it doesn’t make you stupid.
But then you think, oh yeah! I remember how to make electricity, I need copper and an iron rock! So you spend all this time trying to manufacture some relatively thin copper wire, iron would probably be a little easier to find, wrap it around and then you’re like… Okay what went wrong? Annnnd you can’t remember you actually needed a magnet and you gotta spin it.
Then do you remember learning how to store it? Connect it to anything useful? Maybe kinda, but extrapolate the first situation to every topic ever and that’s what you’d get, half baked ideas that you don’t really remember the specifics of. And the specifics really actually matter lol.
atyaz@reddthat.com 8 months ago
Even if you studied it, the answer boils down to “magic”.
You take these magnets, and move them around these long snakes of metal (because electrons can move easily through metal) and that makes the electrons in the wires move.
Okay, why does moving around a magnet near metal make something inside it move?
Well there’s something we call the “Lorentz force” which basically pushes a magnetic thing in a specific way if you move another magnetic thing around it
But why does that happen?
Magic
Mchugho@lemmy.world 8 months ago
It’s all attraction between opposite charge and repulsion for the same charge, even magnetism. Magnetism is just charge in another gauge.
What I mean by this is from our perspective we view a moving charged particle as emitting a magnetic field, but if you were to move along with the particle at the same speed it would be observed as being at rest and emitting an electric field.
TrickDacy@lemmy.world 8 months ago
Not really though. You can say that about anything if so. If I don’t understand why atoms exist, does that make the universe “magic”?
I mean I get what you’re saying kind of, but understanding the basics of electrical power is not the stuff of sorcerers.
Dopeness@lemmy.world 8 months ago
You might want to check out this movie ; Idiocracy.
jaschen@lemm.ee 8 months ago
Welcome to Costco, I love you.
superduperenigma@lemmy.world 8 months ago
Go away, I’m ‘batin’
Comment105@lemm.ee 8 months ago
People always think about going to the past for their knowledge power-trip, when going to the future could be even dumber.
VantaBrandon@lemmy.world 8 months ago
“I don’t know, but let me tell you about how 5G activates the vaccines”
Sivalente@lemm.ee 8 months ago
If you could find a jeweller and had an understanding of basic electrical systems, you could probably get a rudimentary capacitor and engine going. From there, who knows what you could do. Maybe even lightbulbs.
Zeth0s@lemmy.world 8 months ago
Potatoes and lemons I was told
Papercrane@feddit.de 8 months ago
First of all, no one would understand you, but how someone already pointed out, make a spool with copper and spin it. For bonus points, put a iron slab inside the spool
Mojojojo1993@lemmy.world 8 months ago
Something to do with turbines.
Water wheels seem to spin a turbine. Maybe it generated current or something. Similar with windmills? Gyroscope or something.
Solar ? Quite clearly magical and a heretic, likely to burn me at the stake. Steam power pushes steam through A turbine maybe ?
Lightening sky electricity. Get a bunch of metal and kites. Die.
dontcarebear@lemmy.world 8 months ago
Just remember to pack an encyclopedia Britannica and squirrel it away before you Jesus them.
Colour_me_triggered@lemm.ee 8 months ago
Why is he going back to the middle East? It was just as fucked up then as it is now.
OriginalUsername@lemmy.world 8 months ago
You spin the turbine, duh
Arcania85@lemmy.world 8 months ago
Watch the docter stone anime, it’s quite amusing. TL.DW super dude get petrified for like 3000 years and wakes up and re-introduces technology.
MiddleWeigh@lemmy.world 8 months ago
I’d just be glad to finally return to monke
HeyThisIsntTheYMCA@lemmy.world 8 months ago
You rub cats together Duh
uphillbothways@kbin.social 8 months ago
webghost0101@sopuli.xyz 8 months ago
Fools as i carry with me all of human knowledge, right here in this fragile tiny black slab. I can tell you all once you tell me what your wifi password is.
the_beber@lemm.ee 8 months ago
As a side-note: You can download Wikipedia.
webghost0101@sopuli.xyz 8 months ago
I know but i
webghost0101@sopuli.xyz 8 months ago
I know but i
webghost0101@sopuli.xyz 8 months ago
I know but i
webghost0101@sopuli.xyz 8 months ago
I know but i
webghost0101@sopuli.xyz 8 months ago
I know but i
samus12345@lemmy.world 8 months ago
Next they just need to find a way to charge their phone.
Sotuanduso@lemm.ee 8 months ago
86 GB? Yike.
ivanafterall@kbin.social 8 months ago
Then you realize that, back then, the only thing they had were Xfinity hot spots.
FunkyMonk@kbin.social 8 months ago
Worst Isekai. I didn't finish it though so no I don't really know I just didn't enjoy episode 1 with my smartphone.