5 Ancient Body Myths that Are Wildly Inaccurate
Рет қаралды 1,705,431
6 жыл бұрынEarly humans had some pretty odd theories about their bodies-and most of them were entirely inaccurate. Some of these ideas led to treatments that were plain ineffective, but some were downright harmful! Join Hank Green for a fun new episode of SciShow, all about our bodies and the theories of ancient humans. Let's go!
Head to scishowfinds.com/ for hand selected artifacts of the universe!
----------
Support SciShow by becoming a patron on Patreon: / scishow
----------
Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, D.A. Noe, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Chris Peters
----------
Looking for SciShow elsewhere on the internet?
Facebook: / scishow
Twitter: / scishow
Tumblr: / scishow
Instagram: / thescishow
----------
Sources:
www.nlm.nih.gov/exhibition/sh...
www.jstor.org/stable/10.1163/...
www.britannica.com/science/hu...
www.perseus.tufts.edu/hopper/t...
web.archive.org/web/201107080...
ocp.hul.harvard.edu/contagion/...
ore.exeter.ac.uk/repository/b...
www.smithsonianmag.com/histor...
academic.oup.com/labmed/artic...
www.amjmedsci.com/article/S00...
www.carlsterner.com/research/f...
broughttolife.sciencemuseum.or...
www.ph.ucla.edu/epi/snow/chole...
www.infezmed.it/media/journal...
www.newswise.com/articles/view...
www.colgate.com/en-us/oral-he...
web.archive.org/web/201704272...
link.springer.com/article/10....
arthistoryresources.net/visual...
web.stanford.edu/class/histor...
www.spring.org.uk/2008/03/50-...
www.ncbi.nlm.nih.gov/pubmed/1...
www.muslimheritage.com/article...
neuroportraits.eu/portrait/fel...
www.britannica.com/science/li...
www.aaojournal.org/article/S0...
www.researchgate.net/publicat...
embryo.asu.edu/pages/ernst-ha...
embryo.asu.edu/pages/meckel-s...
embryo.asu.edu/pages/ernst-he...
@alzoron 6 жыл бұрын
You would have thought the whole "shooting light beams out of our eyes" method of sight would have been easily debunked by the fact that we can't see anything in a completely dark room.
@barneymiller7894 6 жыл бұрын
Shut up Spike, just accept it lol
@barneymiller7894 6 жыл бұрын
It was a joke. Obviously.
@jesusmora9379 6 жыл бұрын
nah because obscure is a mist like element, that's why you can't see
@vituzui9070 5 жыл бұрын
It's because the theory was actually that vision was produced by the contact between external light and the eyes light. So even the holders of the light beams theory agreed that vsion was impossible without external light.
@itaiko5498 5 жыл бұрын
would be kinda cool tho
@Devilot109 5 жыл бұрын
Plague Doctor outfits were actually really impressive. The thing is, miasma was only one of several guesses about how the plague might be caused or spread. They were worn with smoked glasses to ward against the evil eye, and the entire thing was waxed to keep out liquids in case the victim's humors were somehow contaminated. It was *incredibly* clever, but only helped by coincidence if at all.
@Ahrpigi 2 жыл бұрын
Trying everything and getting incidental benefit sure as heck beats trying nothing and expecting things to get better. Two years after your comment was posted, I'm really wishing more people would take the former approach over the latter.
@J.A.huscher 2 жыл бұрын
Historically accurate plage mask look like nasty ugly gopher child
@52flyingbicycles Жыл бұрын
Full body coverings and a breathing mask would protect against a lot of diseases so hey if it’s stupid and it works it ain’t stupid. Wrong method right solution right?
@milefiori7694 Жыл бұрын
That uniform is bizarrely charming and dreadful. Kinda remind me of old world vulture and new world vulture. Still I don't know what motivated them to create such unnecessaryly scary and eccentric uniform.
@pdreding 6 жыл бұрын
I always wonder what we believe now that people a century or two from now will think us foolish for believing.
@bobhope4288 6 жыл бұрын
Survey says....supernatural beings.
@GREENSP0RE 6 жыл бұрын
I'll second that answer, though societal prediction is a super hairy subject.
@Jarod3926 6 жыл бұрын
"Healthy at any size"
@FriedEgg101 6 жыл бұрын
That cannabis is more harmful than alcohol.
@ikrar26 6 жыл бұрын
Like flat earth.. ?!
@Olli_exe. 6 жыл бұрын
Ancient Greeks: Our eyes shoot beams of light and that's how we can see. Everyone else: seems legit.
@barneymiller7894 6 жыл бұрын
I feel like thats how everything on this list happened LOL "Man i feel shitty today" "Ya got to much blood bro, gotta let some out" *Seems legit
@paulahaverinen4338 5 жыл бұрын
LASER EYES!
@Rickuo 5 жыл бұрын
At least Epicurus and Aristotle were on the right track.
@elias_xp95 5 жыл бұрын
They actually weren't wrong. When you close your eyes you see light emitted from your bodies own bioluminescence. www.livescience.com/7799-strange-humans-glow-visible-light.html
@addy7464 5 жыл бұрын
Greeks were one of the most intellectual empires in the world...... Remember heron,aristotle,socrates,plato,PYTHAGORAS,zeno,plato and thales.
@PunchyAirplane 6 жыл бұрын
Has anyone seen my inhaler?! I need it because of miasma
@HH-lr2zt 5 жыл бұрын
Underrated pun.
@TheReZisTLust 5 жыл бұрын
Naraku?
@Carlsweeney01 5 жыл бұрын
I was actually scrolling to find this comment
@Chica56 5 жыл бұрын
**ba dum tss**
@gnostaoticanarchangautand 5 жыл бұрын
*_I see we have a man of culture here_*
@spiderwebnitter7859 6 жыл бұрын
I'm surprised that they didn't talk about how in ancient Greece they thought that hysteria was caused by a deprived lustfull woman when her uterus was dry and would start wandering around the body looking for moister and nausea and other stuff was because the uterus was trying to get moister from the other organs. (Unless that was a myth I heard)
@barneymiller7894 6 жыл бұрын
Nope that was a thing people believed.
@-Devy- 6 жыл бұрын
They already did an episode on that.
@ggnkrsfkoqxbk5078 3 жыл бұрын
@@-Devy- which video is it?
@happyfacefries 2 жыл бұрын
I'm sorry wat
@roscosanchez4649 2 жыл бұрын
Moisture...
@alexmcd378 6 жыл бұрын
How could you leave "wandering uterus" off of a list of absurdly inaccurate science body ideas?
@3800S1 6 жыл бұрын
Because they have already covered in a number of times. This would of made it like the 4th or 5th time.
@organizedchaos6412 6 жыл бұрын
What's that?
@aejlindvall 6 жыл бұрын
kzfaq.info/get/bejne/gMuWjNGKrr69j2w.html Here's a video of it Sci show did in May!
@qiaomeizhang3932 6 жыл бұрын
Alex McD lol
@luciferangelica 5 жыл бұрын
you might want to read up on a condition known as wandering bladder why, dad? oh, no reason
@Poofiemus 6 жыл бұрын
One of the reasons I love science is because I love knowing that someday, people will look at some of the stuff we believe now and laugh as hard as I did at the ideas in this video.
@canyonparkerfirebird 5 жыл бұрын
Like how some people had pony pfps lol
@gives_bad_advice 2 жыл бұрын
That's an optimistic thought.
@spazzwazzle 2 жыл бұрын
Reddit moment
@edwardtwofeathers4823 2 жыл бұрын
The CDC.
@Neme112 Жыл бұрын
Not really, at least definitely not to such an extent. Those older ideas were really just ideas and weren't based on evidence or the scientific method, which didn't even exist yet. Today, science is much more rigorous.
@micahphilson 6 жыл бұрын
It's amazing how, even though these are all so terribly wrong and were such commonly held beliefs for such a long time, they still often led to treatments that worked, like the London sewage system! I mean, more often it led to trepanning and bloodletting, but you know, you can't win 'em all.
@VitalVampyr 6 жыл бұрын
Miasma Theory is almost true. I holds that bad smells cause disease while today we know that pathogens or poisons cause disease and things which carry them often smell bad. That's why many miasma-based solutions to health worked. There was also a marginally more successful method of humor-based treatments that this video didn't cover. Instead of "draining bad humors" they would instead "promote good humors" by having the patient consume things which were hot, cold, dry, or wet (I forget which is for which humor).
@calamusgladiofortior2814 6 жыл бұрын
Yup, a lot of the more persistent bad theories kinda sorta worked sometimes, which was why they stuck around. One of favourites was the origin of the saying, “Hair of the dog (that bit you). There was a theory that a wound was connected to the thing which caused it, and you could make some poultice to treat the wound if you could find the dog which bit you or the sword that cut you. But, to keep out other negative vibes until that was done, they cleaned the wound and kept it bandaged and dry. So it worked, just not for the reason they thought.
@GotPotatoes24 6 жыл бұрын
Micah Philson at least trepanning, for some reason or other, wasn't actually an immediate death sentence? Like one would assume yanking off a whole circle of skull would just be a game over, but since the skulls showed signs of healing after the fact, obviously a whole bunch of trepanned people (and also. cows) survived the procedure.
@zxb995511 5 жыл бұрын
FYI, both trepanning and bloodletting are actual legitimate medical procedures that are useful in some very specific medical conditions. Trepanning can be useful for relieving excessive intracranial pressure when all else fails, and "bloodletting" (phlebotomy) can be useful for people suffering from Hemochromatosis or Polycythemia Vera.
@MrBilld75 4 жыл бұрын
Yeah, funny how that happens. If it hadn't been for a few rebels who defied convention, or just accidental discoveries, we wouldn't be where we are today and imagine how much stupid crap we would still believe? Lol. I find it amazing too. We could be sooooo much worse off.
@billythedog6485 5 жыл бұрын
“I have too much phlegm and I don’t want to do things” Found my new yearbook quote
@audreydoyle5268 3 жыл бұрын
There's possibility that inflammation correlates with depression.
@supremereader7614 6 жыл бұрын
Why not make a video, ‘Five things humans get really wrong about our bodies - still.”
@sleepyote 6 жыл бұрын
Supreme Reader #1 vAcCiNeS cUaSe aUtIsM
@carlosmarte428 5 жыл бұрын
Doggoroo I read this while thinking of the 4chan guy with the dent in his head and I lost it.
@sofialaya596 5 жыл бұрын
also things people get wrong about the 2 sexes, male and female. I've seen so many misconceptions about that part of our biology over the years, more than any other, it's impressive
@lukebowar3788 5 жыл бұрын
@@sofialaya596 In what way? As in believing gender is different from sex? Because that is quite the ridiculous claim
@99Kuromaru 5 жыл бұрын
@@lukebowar3788 well, when you think about it, not that much... I mean sex is just difference in anatomies based on chromosomes... But gender is a societal thing, what you have between your legs doesn't affect your behaviour though... does it?
@eckmann88 5 жыл бұрын
“What do we have?” “TOO MICH PHLEGM!” “What are we going to do about it?” “Meh. Nothing really.”
@SciencewithKatie 6 жыл бұрын
Blood letting sounds medieval but it is still carried out today for some conditions, such as those with haemochromatosis (iron overload). Removing blood removes red blood cells (that contain iron), and the body uses up iron replacing them, further reducing the amount of iron!
@Im_Just_A_Dreamer 6 жыл бұрын
Today I learned...
@carsonrush3352 6 жыл бұрын
Leeches are still in use today, used in reattaching digits and skin graft, due to their ability to reduce blood pooling after surgery and thin the blood to allow circulation restoration.
@normalpeopleboreme 6 жыл бұрын
Science with Katie also when there are blood blisters.
@user-nu2it6kf2m 6 жыл бұрын
Absolutely right! Although it is just for rare hematologic conditions and it is definitely done in a more controlled fashion haha
@ryanchamberlain6904 6 жыл бұрын
Right, theraputic phlebotomy is the usual treatment for condidtions like hereditary hemochromatosis (iron overload) and polycythemia vera (too many RBCs). I probably wouldn't use the term bloodletting in the clinical setting though 😁
@phrygiandominant6989 6 жыл бұрын
"Well, you kinda really need blood to be alive."
@christelheadington1136 6 жыл бұрын
Ya think?
@morganr.2460 6 жыл бұрын
Blood is good. You need blood to live.
@jenniferferguson1517 5 жыл бұрын
Air goes in and out, blood goes round and round, any deviation of that is a problem
@scottmantooth8785 5 жыл бұрын
unless you're a zombie...but then you'd have other more immediate problems to distract you
@dreadcthulhu5 4 жыл бұрын
@@morganr.2460 Greetings fellow Oglaf reader.
@owlblocksdavid4955 6 жыл бұрын
Can confirm miasma is real. It gets all over my fortress if my dwarfs don't take their dead out to the corpse pile.
@Mae_Dastardly 5 жыл бұрын
And so another fortress falls because bad humors lead to a tantrum spiral.
@jebblount7360 3 жыл бұрын
"Worked better than wearing no mask at all" 2021 would like to steal that line, Hank.
@Honeybreee 6 жыл бұрын
Of course John Snow knew nothing.
@Evan94045 6 жыл бұрын
Bree Evans He did know some things
@jonson97rus 6 жыл бұрын
Evan Wolfla whoosh, that went over your head
@Evan94045 6 жыл бұрын
jonson97rus check again. You whooshed yourself. “I do know some things” - Jon Snow to Ygritte.
@jonson97rus 6 жыл бұрын
Evan Wolfla sorry, I have watched GoT with Russian dubbing, so I must've forgot the exact lines
@bergonius 6 жыл бұрын
Зря, пересмотри в с оргинальной озвучкой и субтитрами, оно того стоит.
@onemadscientist7305 6 жыл бұрын
I can understand where we got most of this stuff, but extramission ? Like, if our eyes are emitting stuff to make us see, how come we see better during the day than during the night ? There's litterally a giant ball of light during the day and it's not there during the night for some reason. Also, shadows are a thing. And they're always on the side of objects that's facing away from the sun. I don't understand how this wasn't immediately dismissed. But hey, I guess the greeks had a different mindset.
@onemadscientist7305 6 жыл бұрын
I know right ? It's pretty weird. Humans are bad at thinking sometimes. Actually, I think we're bad at it most of the time. Blame it on those stupid psychological biases.
@Onychoprion27 6 жыл бұрын
That sort of reasoning was how Abu Ali al-Hasan ibn am-Haytham reasoned against it. It hurts to look at the sun, or at bright lights at night. That wouldnt happen if sight came from the eyes.
@Onychoprion27 6 жыл бұрын
Tolyngee blame it on the tedency to revere people of the past. It held on for so long because Plato believed it, and great thinkers of old can't be wrong.
@piteoswaldo 6 жыл бұрын
There are many religions that say it is holy to study and acquire knowledge. For example, Islam; and that is why during the medieval period in Europe, the Islamic world was having its golden era of science.
@jheanelltabana8713 6 жыл бұрын
Exactly! And wouldn't you be able to see the light beams coming out of other people's eyes? Maybe they thought it was a special type of light, because I can't see how they'd explain night.
@elisabethandersen1102 5 жыл бұрын
"black bile causes melancholy", "chemical imbalances causes sadness". How far we've come.
@checkmyplaylist6879 6 жыл бұрын
1. Muscle Hank is secretly The Rock
@TheReZisTLust 5 жыл бұрын
Muscle bank is a kid from 13 to an adult maybe 27 with access to whats used nowadays... Photoshop still?
@inhumanfilth681 5 жыл бұрын
@@TheReZisTLust nah probly a 400lb 37 year old computer gamer with access to google images lmao
@lakesheppard5466 5 жыл бұрын
Go to his page if you're curious.
@DkKombo 6 жыл бұрын
This makes me wonder how if we had magic in our world, how it might be misunderstood and understood in our modern day. "Necromancy, was considered to be done by use of bringing back the spirit of the undead and using its body parts. We know now, however, that necromancy is caused by the intense vibration of gamma rays to two very specific parts of the users brain and torso upon a corpse, which reignites the past homodyn processes and envigorates the cysix tissue, causing a relapse of intense negative thoughts which takes shape of the percieved ghost or body into physical form and replicates past movements of the corpse."
@annie123e 5 жыл бұрын
I feel like this premise would make for a very interesting sci-fi/fantasy mash up novel.
@DkKombo 5 жыл бұрын
Thinking about how the gamma rays have to refract upon the torso, would that mean that negative energy could potentially cause erectile dysfunction or "defunct" offspring? Also if I find John Green stealing my ideas HE IS DEAD. Lol jk idc he probably has more writing discipline than I do he can have it.
@myman7589 4 жыл бұрын
Gotta love your brain.
@alexcalvin2624 2 жыл бұрын
I want this concept in a book so bad.
@toyamwarr 2 жыл бұрын
This sounds like a great tv show premise. “Harry Potter” meets “Grey’s Anatomy” or something on that vein.
@Master_Therion 6 жыл бұрын
I'm not ready to discount the Humoral Theory, I think bodily fluids are very humorous.
@sebastianelytron8450 6 жыл бұрын
A good candidate for most underrated comment of all-time.
@carlahernandez1108 6 жыл бұрын
Hmm...bile have to think hard to come up with a better pun🤔
@maggiee639 6 жыл бұрын
Nice dads joke 10/10 👍👍
@TurnerClassicNinja 6 жыл бұрын
Boooooooooo.
@kyrlics6515 6 жыл бұрын
TurnerClassicNinja u
@Blue_Spirit7 5 жыл бұрын
When i was 9, i had no idea of science. BUT i made up a theory that people shoot "vision light" out and then it came back at the sppeed of light. So i made up an ancient theory when i was 9 and i had no idea.
@Blue_Spirit7 5 жыл бұрын
@YoungD3mon314 yeah, but by that age the most i did was see disney movies, to think that at such q young age i could make sort of the same theories as the smartest people of that time makes me think that i must have been pretty smart for my young age, it wasnt till 8th grade science that i got sort of corrected. And then scishow corrected me completly in one of their videos.
@Blue_Spirit7 5 жыл бұрын
@YoungD3mon314 oh. Got it now, yeah makes sense, we all observe the same things, the one thing that changes is the interpretation.
@cookeymonster83 3 жыл бұрын
By the age of like 5 I theorised that images travel into the eyes and recorded by the brain like how a video camera works. Being wrong never makes you smart.
@misterbubbles6389 6 жыл бұрын
I love videos like this, involving obsolete scientific theories. It's so fascinating to see where we came from and where we are now.
@CuddlePhantom 4 жыл бұрын
When I told my 10 grade biology teacher that those human embryo drawings are wrong, she yelled at me in front of the whole class saying how stupid I was and failed the whole quarter for that topic. She still hates me to this day and picks on my younger sister.
@Is-wunny 2 жыл бұрын
Send them Correct Human Embryos Pictures printed full color on mail 24/7
@Sliferslacker21 2 жыл бұрын
I know this was posted 2 years ago but teachers like that have no reason to be in the educational field. If she mistreated your sister because of her hatred for being corrected by you, failed you for simply pointing something out, she needs to honestly be fired. Her actions can cause students some psychological harm that prevents them from trying their best in the future for fear of being yelled at and ridiculed. You and your sister should have totally set her up to be fired.
@jetoler7379 2 жыл бұрын
Your biology teacher needs to be fired.
@roscosanchez4649 2 жыл бұрын
On this episode of stories that never happened...
@melissapyle7879 Жыл бұрын
Not ALL the embryo pics r wrong..
@coryc123 3 жыл бұрын
When he said, "I am so glad, I'm alive NOW", I felt that.
@freelanceopportunist559 6 жыл бұрын
Born prematurely, I have the brain of a lizard
@ethanquesenberry7948 6 жыл бұрын
Freelance opportunist same
@freelanceopportunist559 6 жыл бұрын
Qizzardofoz Jr. Wanna start a cult?
@EmjiAmsdaughter 6 жыл бұрын
Me too.
@Burn_Angel 4 жыл бұрын
Oh, don't worry, our brains are like marsupials, they keep developing after we're born.
@dudepool7530 4 жыл бұрын
Wait, i was half a month late, does that mean my lizard brain evolved into a bird-brain? 😂
@fluffysxangel 6 жыл бұрын
Laughed out loud at the delivery of: “when I have too much phlegm, I do not want to do things”
@SAMURIADI 6 жыл бұрын
if our eyes shot out light we could see in the dark, BAM PROBLEM SOLVED
@arth8265 6 жыл бұрын
We need to recharge them when nightime comes.
@qiaomeizhang3932 6 жыл бұрын
SAMURIADI lmao
@Aleks6010 5 жыл бұрын
their idea of light was probably way different and thought that eye beams and light interacted with each other in order to enable you to see, and when you go into the dark you can't see anything but after 10-15 minutes after your eyes have adjusted they must've thought that the eye beams got stronger enabling you to see better
@TheReZisTLust 5 жыл бұрын
Nobody said it was a nightlight
@gunslinger2566 6 жыл бұрын
Muscle Hank is gonna love this one.
@livstibal3852 4 жыл бұрын
I didn't look at the thumbnail, and I barely read the description because I'm listening to this as background noise. But the second I heard hank's voice, I'm immediately paying attention. This man taught me everything I know about psychology, AP chemistry, and so much more. I know nobody will see this, but Hank, you're my role model and I aspire to be just like you when I grow up
@musclehank6067 6 жыл бұрын
I can tell you something I got right about my body 💪💪
@dominicesquivel3901 6 жыл бұрын
Whats your secret Muscle Hank?
@drewdurant3835 6 жыл бұрын
Dominic Esquivel his secret is being a bad ass!!
@creliat 6 жыл бұрын
I'm so glad this account exists
@Why_It 6 жыл бұрын
Has normal Hank ever noticed you, Muscle Hank?
@checkmyplaylist6879 6 жыл бұрын
Man, I wanna touch your muscles!
@Psiberzerker 4 жыл бұрын
My favorite so far is that the brain is for cooling the blood. Which admittedly, happens to be true, but isn't exactly it's most important function.
@corebroth8793 6 жыл бұрын
_“I have too much phlegm. I do not want to do things.”_ - Hank, 2k18
@louk6848 3 жыл бұрын
I think it's a French /English pun, "avoir la flemme" (pronounced as phlegm) means you can't be bothered 🙄
@Kittyhalk 6 жыл бұрын
I was really expecting the whole "womb roaming the body" thing to make an appearance lol
@NiraSader 6 жыл бұрын
"You know something, John Snow"
@jarencascino7604 6 жыл бұрын
How come I had to scroll down 30 comments to find someone point out John Snow
@GREENSP0RE 6 жыл бұрын
"Uhn ore'ki atum" fellow Protoss.
@septromnation7840 4 жыл бұрын
It's jon not john
@erraticonteuse 4 жыл бұрын
@@septromnation7840 The GOT character is Jon, but the doctor was John.
@legrandliseurtri7495 4 жыл бұрын
😏😏😏
@tass466 5 жыл бұрын
Oh God this whole tooth section is so uncomfortable
@scottmantooth8785 5 жыл бұрын
as surprising as it may sound..i'm not a dentist
@Miinish 5 жыл бұрын
I've actually had the tooth and "worm" procedure done on me before. It was a root canal, The tooth was so infected that they cut open my gums and took the root and the nerve out.
@jennag3226 4 жыл бұрын
@@Miinish Thats not a root canal and they most likely only removed the apex of the root, which is called an apicoectomy.
@juliantheivysaur3137 6 жыл бұрын
I used to believe that our eyes emit beams, when i was 9 years old. Where i also thought that, old films with no color were made in a time when there was no color. I also thought that cartoon characters really existed because "How else would they make those cartoons?".
@barneymiller7894 6 жыл бұрын
I remeber thinking the world had no color in the past! lol kids are dumb AF
@pseudo3100 5 жыл бұрын
how did you believe this when you were 9...
@vivimannequin 5 жыл бұрын
When I was little I always wondered why the world looks the way it does and why cartoons didn't
@myman7589 4 жыл бұрын
I made the same mistake too. Not just with monochrome. I also thought that the world in the 70s and 80s were grainy and saturated as portrayed on the photographs made in those days lol.
@fromscratchauntybindy9743 6 жыл бұрын
Runs screaming to bathroom to immediately clean teeth with Enamel repair toothpaste... 😨
@nanabird4073 6 жыл бұрын
Hank's reactions to something horrifying are just about the best thing ever.
@msoda8516 6 жыл бұрын
As a brain tumor survivor I’m glad I was born in a time with medical treatment that could save my life.
@menstilo9172 6 жыл бұрын
If we could shoot light beams out of our eyes, couldn't we then perfectly see at night? I mean we'd always have a reliable light source
@MrMielke 6 жыл бұрын
I think you are being a bit hard on the followers of the smell theory. We find a lot of things that carry diseases smelly, because it made evolutionary sense to stay away from that, so they were on to something. It's basically a case of "correlation != causation," a mistake that many people make today. :) EDIT: Going through the comments, I think it might be worth pointing out that people in the future won't be as hard on us because of the scientific method. You could perhaps link to your video on that somewhere. (watch?v=i8wi0QnYN6s)
@zxb995511 5 жыл бұрын
Most of the people the people that watch something like this and criticize how they could have thought that, do not appreciate the power of modern education and information sharing. Any person with even a high-school diploma has been exposed to thousands of years of cumulative human knowledge in a comprehensive form, and if you have an internet connection you have access to what amounts to the sum of all human knowledge consensed in a searchable library...The ancients could not even dream of something like that.
@scottmantooth8785 5 жыл бұрын
so there is a direct link between the phrase "pull my finger" and the spontaneously generated gaseous emissions that result in highly localized miasma event
@camgood2437 6 жыл бұрын
So, when they at first ignored his research, did anyone ever say "you know nothing, Dr. John Snow"? I need to know.
@peterg76yt 3 жыл бұрын
Miasma theory was on the right track and was pretty insightful for a time without microscope technology. I think everyone would agree that air containing infectious particles like SARS-CoV-2 would qualify as bad.
@kristianferencik8685 Жыл бұрын
The microscope was invented in 1585, bacteria were discovered in 1665, the link between bacteria and disease wasn't discovered till 1876-1886.
@JustinY. 6 жыл бұрын
How can mirrors be real if our eyes aren't real?
@matteussilvestre8583 6 жыл бұрын
How many lightbulbs does it take to change people?
@zucchini_zucchini 6 жыл бұрын
If Newborn Babies Could Speak They Would Be The Most Intelligent Beings On Planet Earth.
@jl8417 6 жыл бұрын
I thought you were Justin. Y, not Jaden. S
@LordofBroccoli 6 жыл бұрын
How can I write this comment if words aren't real?
@El-RaShahzad 6 жыл бұрын
This is not a pipe
@sailorarwen6101 2 жыл бұрын
I love how people seem to think we’re all knowing now. Take everything with a grain of salt because before you’re dead what you thought you knew growing up will have changed.
@beckijameson3844 6 жыл бұрын
Spoken like a true intellectual: "I've learned a great deal and I'm very excited to be sharing it with the world."
@faceshed 6 жыл бұрын
On number 4. As a kid I use to think that my eyes would cast the sight on something to let me see. The idea was wrong, but at the time I just didn't have enough information to say for sure that it was wrong or why. I remember thinking about a drawing where a dotted line would indicate someone looking at something. My brother started the dotted line at the object. I started at the eye. You might think it was silly that I didn't realize that the "eye beam" would have no way to get information back to me, but I did think about it and I didn't consider that a problem. As a child I didn't see any reason to suspect that information needs work physically. I reasoned instead that because it took the act of moving my eye at something and opening my eye to cause vision, that it would be more likely I was the source.
@normalpeopleboreme 6 жыл бұрын
Honestly, miasma theory seems to have helped scientists do what was best without having to understand germs or anti biotics.
@alexnndder 6 жыл бұрын
*Everyone around Dr. Snow was like:* *"you know nothing, John Snow"* *........ I'll go home.....*
@AidanRatnage 6 жыл бұрын
At 4:43, that physician knew nothing.
@blacksalena0 6 жыл бұрын
Aidan Or unfortunate for the people around him, the unsung hero actually knew everything yet everybody keeps telling him that he knows nothing and rejected him
@possumbly 6 жыл бұрын
I remember learning "ontogeny recapitulates phylogeny" in school and I'm not terribly old. So, this makes me question other things I learned from that class.
@woodfur00 6 жыл бұрын
Anyone else feeling like brushing your teeth right now?
@ianmacfarlane1241 6 жыл бұрын
woodfur00 I'm polishing off a bag of Haribo. 😄
@gregslingland3576 6 жыл бұрын
Sweettarts for me.
@calamusgladiofortior2814 6 жыл бұрын
The tooth worms do like a nice massage ;)
@woodfur00 5 жыл бұрын
AtarahDerek Gee, that sure is special. You're better than us peasants.
@__-wc5zn 5 жыл бұрын
Yo fellow homestuck
@DarthBiomech 6 жыл бұрын
I honestly can't believe that the emission theory wasn't gutted in it's infancy by the simplest counterargument of "if this is true then why do we cannot see at night?" So much for the "ancient wisdom", apparently.
@Ruckus45 2 жыл бұрын
I've worked in behavioral health for a while and have heard horror stories of treatment modalities from the early 1900s. I often wonder if the same things will be said about treatment modalities today.... probably will
@pancreasnostalgia 6 жыл бұрын
Snow did contribute greatly to the understanding of cholera during the Broad Street epidemic, he also had help from curate Henry Whitehead. Really the two men's work combined solved the problem. I also think that while the miasma theory was wrong, it led to more good than trouble. Whereas the humoral theory led to way more harm and modern face-palming.
@Schmidteren 6 жыл бұрын
I like all the presenters of this channel. But you are my fav.. Please don't tell the others!
@MiceNine9 5 жыл бұрын
Possibly my favorite episode of SciShow ever.
@kitvalentine7593 6 жыл бұрын
this is the best, the history of science segments are always my favorites
@bethanyishappy5830 6 жыл бұрын
Could they have thought tooth worms were a thing because of cavities? When you see a hole in an apple you think a worm might be in there, so maybe they used that same logic.
@TheScholesie09 6 жыл бұрын
I really can't wrap my head around it. How did people think we could see because of light from our eyes and not other sources? If you cover the light source, it gets dark, you can't see. I must not be understanding it because these great minds cant be THAT stupid.
@massimookissed1023 6 жыл бұрын
Maybe part of the problem came from Aristotle favouring the (correct) idea of external light entering the eyes. Aristotle was wrong about almost everything else.
@nightlightabcd 6 жыл бұрын
If you cover you eyes,that restricts the beams from your eyes! That just gives more evidence to their theory, however erroneous it may be!
@supremereader7614 6 жыл бұрын
nightlightabcd she’s not talking about covering the eyes, she’s talking about light source. If we had a light beam coming from our eyes wouldn’t we be able to see in a dark room?
@9308323 6 жыл бұрын
James Batchelor They're probably thinking that a dark room is just colored black. Remember, they're not thinking of vision the way we do today. They're not thinking of the visible spectrum, it's more of a (super)natural force being emitted from our eyes.
@entropyzero5588 6 жыл бұрын
+930 8323 So the light supplies the colours to objects and our "eye beams" then register said color? Hm…
@Crosshill 6 жыл бұрын
my favorite misconception is the one where the grey wrinkly stuff in your head was pretty much useless and its just so fun cause like, you live in there mate
@armyof2ninjas381 6 жыл бұрын
Good video love your content keep it up sideshow
@gendoll5006 4 жыл бұрын
Omg number 3!! Yes I totally get it!!! I had a cavity that freaked me out because it felt like a tiny worm moving around! It really was odd and horrible. It was just nerve pain of course but omg I thought the worst things!!!
@Lucky10279 6 жыл бұрын
I wonder what people hundreds of years from now will think of our current medical practices. Obviously, we've come a LONG way even in the past couple hundred years, but there's still a lot we don't know or could have wrong. I'm reading a series right now that takes place several hundred years in the future and they have something called "biofoam" which heals even deadly wounds in minutes to hours depending on the type of injury. That's science fiction, obviously, but maybe we'll eventually have something like it. Interesting to hear how far we've come and to wonder where we'll go from here.
@josiwho1203 5 жыл бұрын
What's the series called? Sounds interesting!
@mxRian4 4 жыл бұрын
It’s alarming how often I think of trepanning after an especially rough day at the office.
@perrysamuels7597 6 жыл бұрын
Hi!!!! Love ya’ll’s work💕💕
@annj60 6 жыл бұрын
I wish I had something like torches in my eyes. Much easier to knit in the dark! Would save a lot on the electrical bills to!
@alexanderschestag3247 6 жыл бұрын
The ch in Robert Koch is pronounced like the ch in the Scottish Loch.
@sicariusvast9555 6 жыл бұрын
The Robert Cock institude 😂
@marween4047 4 жыл бұрын
cock
@rogersledz6793 3 жыл бұрын
Thank you so much for uploading this video. It is helping me get through the pandemic!
@uniqhnd23 4 жыл бұрын
I love how we went from embryos having gills to seeing inside the human body without any surgery.
@Asynca 5 жыл бұрын
"I'm so glad I'm alive now." - literally what I was thinking as he said that
@sailordolly 5 жыл бұрын
The "worms cause cavities" idea still persists in the naming conventions in some languages--for example, the Japanese word for a dental cavity is "mushiba", which means "worm-tooth".
@pinkliongaming8769 4 жыл бұрын
The embryo evolution one reminds me of how the gems go through all their forms when reforming
@danielstromberg 6 жыл бұрын
I'm not sure I've ever seen a SciShow I didn't like, but I thought this one was particularly interesting.
@WitchVulgar 6 жыл бұрын
#4: Emission Theory is called Ray-Tracing
@darkestkhan 6 жыл бұрын
True, but we use ray-tracing only because it is way cheaper on computational resources than actual physical simulation of light.
@TavernBrawler 6 жыл бұрын
I, too, am also glad I am alive *today*, Hank
@zen3881 4 жыл бұрын
Your hand gestures are phenomenal
@blondwiththewind 5 жыл бұрын
PHEW!!! This video sure covered a LOT of territory. :D Fascinating.
@milesarcher8502 5 жыл бұрын
re: Miasma. the Italian term for "bad air" is "MAL ARIA"!!!
@faithfuljohn 3 жыл бұрын
As a man in my early 40s, I can tell you I definitely was taught recapitulation theory even while doing my Human Biology degree.... from a professor of Medicine (around 20 years ago). It seemed ridiculous to me then... So yeah... there is that.
@p.s.224 Жыл бұрын
There are still terms like “reptilian brain“ as in some evolutionary “old“ part of the brain being thrown around, I always wondered how scientific that was or how literally it was meant. Also: those who invented recapitulation theory kind of had a theory of evolution, but all we ever hear of is Darwin who came much later?
@JanBabiuchHall 6 жыл бұрын
Yep, I was taught Ernst Haeckel's theory in high school biology. Still remember those exact embryo drawings.
@disappointmentjuice8676 5 жыл бұрын
To all the awesome crew members at Scishow, I want to clarify something. Bloodletting isn't as stupid as many people think. It isn't stupid for people with too much iron. Leeches suck blood to thin it out and reduce the chance of it clotting, for people with blood clots. That's bloodletting, and it is a common practice today. Using maggots to eat away at dead and infected tissue may be absolutely disgusting, but it reveals some promising results. But they weren't entirely genius. We use it for specific reasons, they used it for general things, like a cold. So it isn't 'yeah they were kinda right,' but more of a 'they were completely wrong but we just happened to find practical use for it.'
@annabellewilson0101 6 жыл бұрын
I wonder what we're wrong about now..
@jenniferferguson1517 5 жыл бұрын
Cold air makes you sick Vaccines cause autism “Holistic” medicine does anything “Organic” food is better for you. There are a few to start with that are WRONG
@UrbanClimber 5 жыл бұрын
Illegal drugs are bad and they are the reason why people get addicted. Or maybe people want to get addicted and use illegal drugs? Who knows at least we got the most harmful drug legal thats the most important thing.
@scottmantooth8785 5 жыл бұрын
lots of things...popular political environmental theories...bigfoot not being real...that sort of thing
@myman7589 4 жыл бұрын
@@jenniferferguson1517 I have a feeling that those who claim vaccines cause autism are the same kind of morons who once rejected science because they prefer life to be "simple and pure as intended by God" lol.
@SuperVstech 6 жыл бұрын
Antibacterial soap... oops
@icreatedanaccountforthis1852 6 жыл бұрын
Hank you light up my life.
@Articulate99 2 жыл бұрын
Always interesting, thank you.
@laydieelle7069 5 жыл бұрын
SO happy I was born AFTER all those eras.
@louk6848 3 жыл бұрын
In 500 years, people will look back at us and think the same thing.
@randomicko542 6 жыл бұрын
But... if our eyes would shoot out light, wouldn't we be able to see in the dark really well? This makes no sense.
@SohiTheTinyKittenHuman 6 жыл бұрын
RandomIcko like cat eyes but flashlight cat eyes lol
@HalTheAl 6 жыл бұрын
That picture of Epicurus is perfect. The expression is totally one of someone who just got told something so unbelievably stupid he has to take a minute or two to process it.
@Chloe-zs8ee 6 жыл бұрын
You should do a video on the history/evolving practices of midwifery! That’d be super interesting I think
@davidprodigy5833 6 жыл бұрын
Ouch!!!!
@Emcron 5 жыл бұрын
#6: the belief that antibiotics can fight viruses. >_>
@xeera0196 2 жыл бұрын
i almost didnt recognize you but i found you on tiktok your still fun!
@YuBeace 5 жыл бұрын
The fact that it took so long to realise letting out the humors was a bad idea... I'm in awe.
@willtrautman6243 6 жыл бұрын
6:35 Someone make a gif please
@dabiskitt 6 жыл бұрын
Will Trautman y tho
@willtrautman6243 6 жыл бұрын
Aaron Walls Because
@ianmacfarlane1241 6 жыл бұрын
A woman was grown from a rib planted in the ground 😄.
@qiaomeizhang3932 6 жыл бұрын
Ian Macfarlane lol wtf 😂
@HH-lr2zt 5 жыл бұрын
@@qiaomeizhang3932 Christians believe that the first woman was created when God took out the first man's rib.
@qiaomeizhang3932 5 жыл бұрын
Hannah Henderson oh ok. For some reason that sounds silly. Sorry. I shouldn’t make fun of that.
@ianmacfarlane1241 5 жыл бұрын
@@qiaomeizhang3932 What? "Sorry, I shouldn't make fun of that" Why? Are you a Christian? Are you religious?
@ethanwagner6418 5 жыл бұрын
OOF
@martinturner4622 6 жыл бұрын
I wish we could see a similar video created a hundred years from now explaining all of the bizarre practices we currently have in sciences that are taken very seriously
@JamesSmith-rb5lv 6 жыл бұрын
My new favorite quote “There may occur sometimes tiny worms.”
Nikita Zdradovskiy
Рет қаралды 7 МЛН