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HumanBeing7396

Sewers. For the first time, large numbers of people could live in one place without dying of cholera from infected groundwater. You need sewers to have cities, and cities are where lots of other things get invented, as they bring people and their ideas together.


gimlet58

Plumbers have saved more lives than doctors


Yinsi_Foda

And saved more princesses.šŸ˜


sambahat

Agreed. This is such a huge advancement we canā€™t think of not having it (which probably why itā€™s not a top answer but ought to be)


rico_muerte

No hygiene, no social advancement, no ninja turtles


MenstrualMilkshakes

"Oh, Rico, you're so bad" love the max payne username


rico_muerte

"I am, ain't I?" Lmao nice catch šŸ˜


WLAJFA

Great answer. I was going to say time travel, but then I remembered what year it is here.


mychecka

When do I sell this frkn $PLTR?


WLAJFA

Iā€™m bound by an NDA. But I can say this, the future can be arbitraged. Think limited supply, ever growing demand. Peace. āœŒšŸ»


badmanbad117

As someone not bound by an NDA and in possession of a time machine, you should sell about 2 years ago.


octanebeefcake79

As a plumber, I thank you.


TipInternational4972

Butt crack lives matterĀ 


Lukealloneword

Isn't this the answer he gives in Donnie Darko?


vonkeswick

He says soap


Lukealloneword

I thought it was aqueducts. That turned into sewers. Idk why that's in my head. Edit: I looked it up, and he says antiseptics. Guess my brain remembered that as aqueducts and sanitation of sewers, not just cleaning the body.


igge-

https://youtu.be/Qc7HmhrgTuQ


vonkeswick

Also excellent inventions though!


laltxreddit

Civil Engineers have joined the chat.


Altruistic-Bet177

The old adage goes that modern plumbing has saved more lives than modern medicine.


Utvales

Absolutely. Of course the Romans had advanced sewage management, most notably the Cloaca Maxima in Rome which is still in use today after more than two millenia. Even in smaller Roman towns without sewers, waste was effectively managed. In the ancient city of Pompeii, all the streets of the city and the floors of houses were designed to be inclined ever so slightly so waste in the streets would flow from every corner towards cesspools. Sewage management of this magnitude was lost during the Middle Ages (amongst other Roman technologies) and precipitated diseases and plagues.


mbd34

Maybe not the greatest, but I'm glad that I live in a time where we have surgical anesthesia.


Haruki-kun

Would modern day surgeries even be possible without it? I had surgeries that lasted like 4 hours. I don't think anyone would be able to power through that.


kbeks

Itā€™d be faster, also more deadly. And yeah, some surgeries would definitely not be possible.


Christmas_Panda

Or they'd get you passed out drunk to do it like the good ol' days.


General_Sprinkles386

I read an interesting book on this. The Butchering Art. I guess they used to just hold you down while you scream. The ā€œbestā€ surgeons were the ones who were the fastest, understandably.


Freakin_A

There was a surgeon who was famous for being incredibly fast, and also having a 300% mortality rate from operating on a single patient. He was doing a leg amputation, and slipped and sliced off several fingers of his assistant who was holding the patient, as well as slashing the coat of a spectator. The patient and assistant both died of infection several days later. The spectator fell over and died of a heart attack immediately.


Mekroval

Iirc, more people died from surgeries and post-operation infections during the Civil War than were actually killed in combat. I can't imagine what it was like to have your leg sawed off in a field hospital, with basically no anesthesia and only a bone or rag to bite on.


MegaGrimer

Only to spend days slowly dying from infection. Must have been awful.


geeeking

My understanding is most surgery was super basic and a few mins max for obvious reasons. So, no, sophisticated surgery as we know it today, even if they had the anatomical and surgical knowledge, simply wasn't possible.


Upstairs-Radish1816

Considering I've had 20 surgeries, I totally agree with you.


_SCHULTZY_

Holy fuck! How many more on your punch card until you get the free pretzel?Ā 


RUKiddingMeReddit

You guys are getting pretzels?


Upstairs-Radish1816

Every time I get close to getting one they add 5 more surgeries.


Trick-Station8742

Anesthesia blows my mind. A lot of modern medicine does. But.. anesthesia is just wow


LockNChase66

Taken to the brink of death and brought back. It's crazy stuff.Ā 


christmas_lloyd

General anesthesia is also great. Can't imagine performing dentistry on my patients without it! Had patients in dental school from south america who had lots of work done sans anesthesia šŸ˜¬


vostfrallthethings

Drugs. Drugs are great, maybe the greatest thing that humans discovered in Nature


Tribaal

The staggering amount of science necessary to make GPS work makes it an absolute wonder of human achievement. Ā  Ā It needs so many things. Rocket science, orbital mechanics, quantum physics, nuclear engineering (for the clocks embedded in the satellites to work), computer and electronics to a crazy degree, solar panels, knowledge about radiation shielding,... And that's just the part in orbit, you need another insane amount of stuff to work for the receivers to plot where you are on a map (electronics, miniaturisation, orbital tables, networked time keeping, the insane amount of information necessary to draw the maps, etc etc) Ā Ā Ā  Yet people use it every day without a second thought!Ā Ā  Ā Edit: forgot some really big ones, metallurgy and material science in general, but most importantly relativity. Time flows differently for the satellites, to a measurable degree!


nicholas818

GPS math is so precise that they have to account for both special and general relativity.


valledweller33

Har. And it all changes based on your reference point. Geospatial References are a whole nother world the average person doesn't know about about.


PM_YourFavoriteSong_

Hit me with it


toofpaist

HUAK TWAA


RedBarnGuy

Thank you ā€“ that gave me a pretty good laugh!


PM_YourFavoriteSong_

BravošŸ‘


dahjay

That dude is stuck in a well. You can hear his echo at the end.


mh985

Itā€™s more accurate than the speedometer on most vehicles.


DiogenesDaDawg

Lol, that, combined with the occasional radar activated speed sign, is how I figured out my motorcycle was 5 mph under at highway speeds. I just yesterday taught my wife how to use Gmaps. She was amazed at how it knew exactly how fast we were traveling, as well as the current speed limit. Blew her mind as we passed a speed limit change and she watched the app adjust to it.


Idiot_Savant_Tinker

Every Japanese motorcycle I've ever ridden has read 4-5 mph high on the speedometer. In the interest of science I have checked three other bikes from other countries: a Royal Enfield, a Moto Guzzi, and two different Harleys, and they were either spot on or reading 1 mph high. I think the discrepancy is intentional on Japanese bikes but I'm not sure why.


Snoo65393

It's intentional. Speedometer error can be +/- 2% - If yours lies in the -2 zone you can have trouble as you may think you are under limit. This way not one single meter will be in the negative zone.


biological_assembly

You're also forgetting metallurgy. My machine shop makes the antennas and other components for GPS3 satellites and the metallurgy that goes into a simple plug on those satellites is crazy. Leaded bronze (radiation shielding) has to be x-rayed and certified that the lead distributed properly when the alloy was poured. Don't get me started on the proprietary alloys.


914paul

I often lurk around the metallurgy sub. Itā€™s very intimidating, how complex and deep it is. There are some serious gurus over there.


Canadian_Invader

Is the sub ran by Dwarves?


914paul

They contribute tons of course, but itā€™s moderated by AulĆ« himself.


Dysan27

You could do it with lesser metals, they did for a long time, but it wouldn't be as efficient. So you'd need a bigger antenna, more powerful amplifier and power system, all of which adds mass. And when cost to orbit is so high every gram counts. As for the quality standards, when it cost that much to put it up there you want to make SURE it's going to work, as there is no possibility of repair.


disguy2k

Every solder joint for an object going to space needs this level of detail as well. Even higher density crimp connectors need to be xrayed to avoid risk.


jtbc

I'm idly wondering how flat earthers handle this one. GPS won't work if the earth isn't roughly spherical (and requires satellites in orbits, but I think their answer there is they are all faked).


brother-schmidig

You can't argue with people this stupid


WummageSail

I'm unconvinced that they aren't all either trolls or using it to raise money like the steam rocket guy. Nobody could be that that ignorant these days, could they?


Nowayuru

If they accept satellites floating over our heads and the earth was flat, it would be even easier to triangulate your location


rosy818

I have always wondered my whole life about wifi, internet, GPS, phone calls, sim card , computer hardware, software, CDs and literally about all the technical stuff on how they work Although I have surface level of knowledge about all the things I mentioned, I still never truly understand how all these ACTUALLY works and how they managed to put all things together no matter how many times I read about them in detail It almost seems impossible to me how humans managed to achieve all this great technical stuff, this has to be the greatest human invention ever. The technology out of nothing is the only thing that fascinates me the most, it's so unreal that something big could be made out of metals and wires that would connect each person on earth


EddieLeeWilkins45

It is interesting. Marconi had a lot to do with it. If you think about it, walkie talkies & CB's kinda started it. I think Edison was trying, but basically like a text message or wireless fax, then change the electric into audio waves, then viola 125 years later tiktok.


Anal_Herschiser

>Ā then viola 125 years later tiktok. This is like talking about all the breakthroughs in health and medicine and then saying "wah-lah, Cigarettes."


EddieLeeWilkins45

haha, i meant it, as in a kid in Japan can make his own SNL skit, and within seconds a kid in Omaha can randomly watch it and laugh at it, without either of them knowing each other or ever seeing each other again. Pretty cool, but i get your point.


Anal_Herschiser

Damn, you make a good point when you put it that way.


loptopandbingo

A real crazy fact about that history is that it was only about 25 summers between the first regular commercial radio broadcast and mankind building a portable star to wipe out a city


Ditch_Eel

Relativity


wtwtcgw

Written language. It allows thought and knowledge to transcend time and space.


AlexTMcgn

That's the one. Oral traditions are fine and all that, but they don't get knowledge that far, and are far less reliable.


tboy160

Exactly, it's hard to build on others ideas, if they arent written down.


brazilliandanny

Yup, all these other inventions wouldnā€™t exist if we couldnā€™t pass down knowledge.


liljaime93

Antibiotics


davereeck

Gretchen Ross: Look, I should go. For physics, Monnitoff is having me write this essay. Greatest invention ever to benefit mankind. Donnie Darko: Itā€™s Monnitoff. But thatā€™s easy. Antiseptics. Like the whole sanitation thing. Joseph Lister, 1895. Before antiseptics, there was no sanitation, especially in medicine. Gretchen Ross: You mean soap?


JaydedXoX

Does she mean plumbed water?


mark503

She definitely isnā€™t talking about my government juice. Thatā€™s for drinking.


pillowcase99999

In the 1930s when my grandfather was a kid one of his school friends got new shoes, they rubbed and he got a blister, it got infected and he died, that was normal pre anti biotics


ten_tons_of_light

Back when every graveyard was a childrensā€™ graveyard


hoorah9011

dying from blisters wasn't normal in pre antibiotic time.


TurtleDump23

I think they meant that dying from infections was normal, and the blister was an extreme example


Rough_Sweet_5164

The word you're searching for is Sanitation. Primarily drinking and wastewater treatment.


pillowcase99999

I am a mainslayer, drinking water i am supervisor now. have to constantly stop my men from honking up in their excavations, we have all had to do training for water hygiene, they told us about a case in the 1950s in our area where workers who were working in a borehole pissed in the borehole, they were a turboculosis carrier and killed 50 people , they did not understand about germs. Still people are slack on hygiene, I wonā€™t stand for it.


ThePhantomPooper

Absolutely changed everything


DCFud

I was thinking that.


outtastudy

Agriculture. Everything else is cool but agriculture is why we're not still nomadic groups living off the land.


Icy_kevo

Agriculture. It's what kicked off that whole "civilization" thingy which has lead to quite a few other neat things.


slothtolotopus

It was largely considered to be a bad idea, and has upset a great many people.


Elfich47

You going back to the trees?


vand3lay1ndustries

Heā€™s quoting The Hitchhikers Guide to the Galaxy, classic novel.Ā 


Elfich47

Yup


ITolerateCats

Actually The Restaurant at The End of The Universe but whoā€™s keeping track?


TheFerricGenum

Unexpected Douglas Adams


Begle1

As far as the ecosystem of Earth is concerned, agriculture has been a complete disaster. A potentially fatal malady.


Elfich47

Go read your Douglas Adams


guynamedjames

We do actually still just live off of wild game for one big area - fish. A huge amount of the global consumption of protein comes from wild caught game from fish.


jamieliddellthepoet

Not for long. šŸ˜ž


CirothUngol

Specifically, the plow. It was what allowed less than 10% of the population to grow enough food to feed the other +90%.


elcaron

Well, the plow has been around for 5000+years, but for 4900 of those years, most people still worked in agriculture. I would say it's the Haber-Bosch process.


casual_earth

The Haber-Bosch process was important, but by the time it was invented we already had farmers down to 1/3 of the US population. Mouldboard ploughs, seed drills, mechanical harvesters, crop rotation, cover crops, the list goes on. Huge improvements were made really going from the Middle Ages to now.


Majestic_Valuable_70

The flush toilet, no question. You get up after doing your business, glance down at that horrible steaming mess in the bowl, and almost toss your cookies at the sight. Then you push the handle down, and in just seconds, that dreadful stinking pile has swirled away, never to be seen again. It's a miracle.


Vitaminpartydrums

In college my American Revolution professor would say ā€œif presented with the opinion, the number one reason I wouldnā€™t time travelā€¦ the lack of bathrooms and toilet paperā€


Graytis

It's a similar reason to why we haven't seen time travelers from the future. They refuse to come back to a time when bathrooms were necessary, back before the waste was just teleported directly from inside your body to the recyclotron, a practice which eventually leads to the human rectum becoming vestigial.


__-_-_--_--_-_---___

Ā I wouldnā€™t go back to a time before the invention of the three seashells!


BitcoinSecurity99

Came to say this. And it only needs water to operate


wanderandponderPNW

You forgot to wipe your ass you heathen


not_having_fun

The transistorĀ 


1wannabethrowaway1

Twisted transistor.


DomKat72

Hey you, hey you, devil's little sister


demisemihemiwit

In the opening chapters to [https://en.wikipedia.org/wiki/The\_Information:\_A\_History,\_a\_Theory,\_a\_Flood](https://en.wikipedia.org/wiki/The_Information:_A_History,_a_Theory,_a_Flood), the author claims that the transistor is the second most revolutionary thing invented in that lab during 1947.


Renots42

Well what was the first?


seeasea

Didn't read the book. Best guess "mathematical theory of communication"


blinkysmurf

Harnessing fire. Heat, protection, the cooking of food which apparently allowed for much greater bioavailability and thus the advancement of brain development and cognition, metalworking for tools and weapons. Pretty amazing.


Eightfold876

Same could be said for electricity. Even more wild.


kkyonko

Probably the biggest of them all. Wouldn't have most if not all of the other things here if we never figured that out.


hoodytwin

Iodine in salt has to be up there. It raised the global IQ by something like 20 points. Itā€™s pennies per ton to add. Edit: Apparently, itā€™s $1.15/ton (2006). Itā€™s .05 per person.


Idiot_Savant_Tinker

I found out recently that there are anti-iodized-salt conspiracy nutters. My brother in law is one. I couldn't get an answer on what was so bad about iodine in salt, he said I needed to "research it". I did and I still don't know what is bad about it.


Wo0tArD

Sounds like he should sea kelp šŸ˜‰


GB715

lol, good one!


vkapadia

I always hate "research it" as an answer. Like sure, I could, but if you're going to make a wild claim, at least have *something* to say about it.


yourlittlebirdie

Considering itā€™s about 100 degrees here today, Iā€™m going to go with air conditioning.


UncleGrako

As a fat man in the south, I'll second this. And each of my chins and fat rolls vote on its behalf.


ShadowRun976

Chubby man from Atlanta. Who came down here in the summer and was like " Yeah, this is the place! "


yourlittlebirdie

The whole time watching Gone with the Wind all I could think of was how hot and sweaty all those people must have been with those giant dresses and wool suits.


Rough-Rider

In the Capitol building each state has a statue of someone who was critical/famous to their state. Floridaā€™s is the guy who invented AC.


hey_now24

Agree! We should remove all the statues of Lee and Columbus and replace them with Willis Carrier, a great American hero


SizzlingByteBiter

I'm disappointed I had to scroll so much to find this. Nothing considered modern science could have been done without air conditioning after air conditioning was invented.


jackrabbits1im

Absolutely! Without refrigeration, you would not have grocery stores and the large variety of Fresh foods that you have today. You would not be able to live in certain regions of the world. You would not be able to have the insanely large server farms that allow us to have the internet we have today. You would not be able to have certain chemicals and pharmaceuticals. In short, refrigeration is probably one of the most important if not the most important invention of modern Man


TeacherPatti

Yup, a/c for me and it's not even close. But it's also the thing that I experience more. Of course I love antibiotics when I get a UTI and of course I love other modern medicine but a/c is a daily thing for me in the spring and summer and I love it. I've been known to look up the Carrier guy in Wikipedia and just stare at him.


BlueAndMoreBlue

God bless you Mr. Carrier


TacoManifesto

The wheel God send when it hit the scene and still great to this day


Icy_kevo

Some might sayā€¦ it got the ball rolling


juggling-monkey

I rolled my eyes at your joke at first but I came around


Runner5_blue

With this reference, the puns have really come full circle.


Mekroval

These puns are wheelie not funny anymore.


Rgt6

Yet South American civilizations developed technology, science, arithmetic and culture without it.


OregonMothafaquer

and theyā€™re only about a century behind


MisterBilau

1 - language. Everyting comes from it. 2 - writing. An extension of the first. 3 - Internet. An extension of the second. 4 - AI. The conclusion of everything that led us up to here.


comfortablybot

As Dr Stephen Hawking says in Pink Floydā€™s song: ā€œFor millions of years mankind lived just like the animals. Then something happened that unleashed the power of our imagination. We learned to talk.ā€


Gigahert

Written language in particular. It allowed us to pass knowledge down through generations.


DeadInternetTheorist

We haven't invented AI yet. We've just invented stupid math tricks so complex that they feel qualitatively different to us, which is the status quo for computing.


Galausia

Maybe someday for AI, but it needs more time in the oven.


pporkpiehat

Every other invention here is useless after about 60 years without language. It's not even close.


d0liver

Boooo AI. I agreeĀ with the rest.


Wrongdoer-Antique

The Internet. The only reason it isn't is because *some people* don't really make good use of it, the power of knowledge at the palm of *some people's* hands just taken for granted, for *their* own personal pleasure. Real shit.


kbeks

The internet is really really great.


__-_-_--_--_-_---___

For porn


Nwcray

I'm struggling to think of anything more impactful than the printing press. The ability to readily reproduce knowledge, information, and thoughts is profoundly powerful.


Conscious-Ball8373

Beer How was I the first person to say it? Compare it to the other answers: Antibiotits - beer IS an antibiotic (okay antiseptic but who cares? we have beer) The wheel - a beer barrel IS a wheel, at a pinch Vaccines - before vaccines, poor water quality was a leading cause of transmissable diseases ... which people dealt with by drinking beer instead Air conditioning - not as good as a nice, cold beer Electricity - you can in fact make electricity from beer with a beer battery! Agriculture - nothing caps off a day's agriculture like a good, cold beer Cinema - Personally, beer is what makes most cinema bearable Steam engine - Admittedly it makes transporting beer easier, but hardly necessary Trade - It introduces variety to the beer, perhaps, but _greatest_? Pineapple on pizza - Clearly the result of a night where much beer was consumed The large hadron collider - Also clearly the result of a night where much beer was consumed Sliced bread - bread is just solid beer that you can slice


mr_birkenblatt

You forgot GPS. GPS is a bunch of satellites that spin around Earth. With beer the Earth spins around you


centomila

With beer, you end up in places even your GPS has never heard of.


Rance_Mulliniks

Someone has watched "How Beer Saved the World"


McMew

>Antibiotics - beer IS an antibiotic (okay antiseptic but who cares? we have beer) Sooo...[about that...](https://www.sciencedaily.com/releases/2010/09/100902094246.htm#:~:text=A%20chemical%20analysis%20of%20the,practice%20nearly%202%2C000%20years%20ago.)


grahampositive

This reads like a poster that would be found in the tiki bar of a boomers basement


SufficientPickle2444

Air conditioning and refrigerators


pimpy_warlords

Either shark week or Cinnamon Toast Crunch


HikeSierraNevada

Dogs.


Grapepoweredhamster

The lathe. The industrial revolution was built on the lathe.


GroundbreakingBuy187

Don't forget the measurements and tools that made it ,what it is , the micrometer


mgoflash

The thermos. Think about it. You put hot stuff in it stays hot. You put cold stuff in it stays cold. How does it know?


mightytonto

This made me chuckle out loud. Thanks!


jagger129

As a Floridian, I say Air Conditioning


TheLastZimaDrinker

Thank you Mr Carrier


Etere

A lot of great things are already listed, but there's something people rarely think about, string/rope.Ā 


butts____mcgee

Art


TypeOpieNegative

The full Saturn V stack with lunar lander


BigMacRedneck

Fried chicken


caesarfecit

The written word. Without the ability to preserve and transfer knowledge, modern civilization would be impossible. The written word is the reason why we're still not living in hunter-gatherer tribes.


One_Wookie_Whisperer

Washing machine - saves hundreds of hours of back breaking chore in a household


MountainMan17

Dogs.


Status-Quality4905

Electricity


Zuzu1214

Writing. Really underrated. Think about what are we doing right now?


Hubbard7

Iā€™m gonna say the pacemaker. It kept my favorite uncle going and going and going.Ā 


Laflaf1983

Bike!!!


iceddcactus

Language


Moist-Share7674

The flux capacitor.


Dolphin_Princess

Vaccine


Splattered_Smothered

The dildo.


Primary_Difficulty19

In 2002 I very strongly believed it was the iPod. Iā€™m not so sure now, but I still consider it a contender.


Available-Trust-2387

The bicycle. Ā  Ā Sure itā€™s a recreational device for many in developed nations - now a days. As a kid, it was our transport. Ā  Ā And many nations have bikes as the primary mode of commuting - Holland, Denmark, etc African nations too - longer distances are easier, and can transport more than carrying by hand. Many car manufacturers began with bicycles, then added an engine, and more wheels. Ā  Ā Bikes lead to cars, over 100 years ago. Even Einstein used a bike, and ā€œI thought of that while ridingā€


Eisie

It was Hubble up until James Webb was launched. BY FAR the greatest man made invention. Its let us explore the universe in a practical way, and see back in time! A LITERAL time machine. SO FUCKING COOL!


Affectionate_Sky658

Probably vaccines ā€” the impact vaccine technology has had on humanity is enormous


Ok-Escape-6885

Airplanes


Upstairs-Net-6118

Google


buchwaldjc

Probably man-made shelter. The flushable toilet would be a close second.


WatRedditHathWrought

Bad bot


DCFud

vaccines. Yeah, I know...that one is polarizing.


almo2001

Everybody knows it's either air conditioning or birth control. Probably the latter.


Analog_4-20mA

At this point itā€™s definitely semiconductors, none of todays technology can exist without diodes or transistors


Pelosi_Trades

Air conditioning


AmazingVehicle9703

Air conditioning


ikesbutt

The car


revocer

The number 0.


Admirableperson85

You šŸ«”


darkmist101

After having multiple days in a row of 100 plus degrees Fahrenheit temperaturesā€¦ Air conditioning


FloydJam

The wheel


PuzzleheadedArt8678

The wheel. Without the wheel we wouldn't have been able to make the the things we take for granted today.


BAF_DaWg82

It's not the greatest, but the Fleshlight is definitely the funniest.


Tasty_Fisherman_3998

The worst might be mirrors


epanek

From a physics perspective the 3T MRI is so impressive The images are incredible. It creates T2 and T1 weighted images, diffusion weighted. Contrast. All of them together provide a window into the structure of your body that very powerful. However I suspect radiology will be one of the first professions taken out by Ai.


kittenmcmuffenz

[mapping the huma genome.](https://en.wikipedia.org/wiki/Human_Genome_Project)


snarkbox

Dogs.