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#1
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What inaccurate or flawed history, science, etc. lessons was I taught in school as a kid?
I'm talking about pre-college. I'd like to know what children were being taught from the mid-eighties to late-nineties that we now know/strongly believe to be wrong.
I'm not sure of specific examples to give for what I'm looking for, so I'll give some hypotheticals. I remember learning in Chemistry that heavy metals in the body could never be removed because heavy metals don't bond with any other elements, so say now we've learned that there are ways to coax them into bonding with other elements, and those opened the prospect of getting them out of the body. The only example that comes to mind is one that I'm pretty sure I didn't learn much about in school to begin with, but it's the fact that El Cid might have actually been Muslim and that the whole history celebrated in Spain might have been constructed after the fact (badly paraphrased here, but discussed in this documentary about 65 minutes in) |
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#2
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giraffes have long necks so they can eat leaves at the top of trees. there was supposed to be less competition for the leaves in the treetops.
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#3
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One of the biggest science myths taught to kids is that glass is a liquid, but just flows very, very slowly, and we can prove this because really old glass is thicker at the bottom of the window pane.
Calling glass a "liquid" is a GROSS over-simplification of it's material properities. It's an amorphous solid, which basically means that it's a solid that lacks a firm crystalline structure. Old glass is thicker at the bottom because of manufactoring techniques. |
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#4
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And that we don't know how bumblebees fly, that water swirls down drains in opposite directions in different hemispheres, that frogs won't jump out of boiling water if you turn the heat up slowly enough, and a jillion other "strange but true" facts that are strangely false.
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#5
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In early elementary school you learn that Columbus sailed the Nina, Pinta and Santa Maria and discovers America. Then many years later, from the same school system, you learn that he actually never set foot in North America proper, but rather what he "discovered" was Hispaniola and Cuba.
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#6
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That isn't true? Why do they have long necks then?
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#7
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#8
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#9
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#10
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#11
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#12
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![]() The fact the Colombus never set foot on the mainland is less important than the fact that everyone in Europe found out about all these "new" lands as a direct result of his voyage. Quote:
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#13
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That is as may be, but it is hardly proof that that is the main reason why they evolved long necks. Humans use their fists for hitting each other, and even for fighting over potential mates, but I hardly think that is the reason why we evolved hands.
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#14
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Anyway, what about the Bohr model? That was defeated in the 1920s but still taught. Or how about the "fact" that lactic acid causes muscle soreness? |
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#15
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Wait, I thought we were cynically writing off the "eat more leaves" theory.
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#16
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Might I add:
Galileo was persecuted by Church authorities because they thought his views about the solar system were dangerous to Christian faith (or contradicted the Bible, or were new and scary, or because they were not comfortable with the implication of a bigger universe), and he courageously stood up to them because of his love of the truth.Note: I am not denying the fact that Galileo was tried and punished (though rather leniently, by the standards of the time), ostensibly because of his astronomical views; I am denying the motivations that are usually ascribed on each side. |
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#17
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I was taught some phenomenally stupid stuff in grade school -- but it was, I think, the teacher's fault, not institutionalized error, as most of these are. If you want a good rundown of flawed history, read Richard Schenkman's books, especially Legends, Lies, and Cherished Myths of American History, I Love Paul Revere, Whether he Rode or Not, and Legends, Lies, and Cherished Myths of World History. I practically guarantee that you'll find something you learned in school that's been overturned, or at least seriously questioned.
Schenkman doesn't have an ideological axe to grind, unlike Loewen, so there's not much to dispute there. He combed through history journals and books to find these facts, and presents them without a lot of detail, but gives you the references. It's like a historian's version of Jearl D. Walker's The Flying Circus of Physics, which I also recommend in this regard -- lotsa refined interpretation of physics, showing things they got wrong in school. |
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#18
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Airplanes fly because of "the low pressure created on the top of an airfoil".
I also may have been taught that we only use 90% of our brains but it's hard to remember that long ago. Awesome! More ignorance fought! |
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#19
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Is this true (the bit about Columbus knowing of the sagas)? Got a cite?
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#20
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74westy beat me to the punch with airfoils.
Atoms are so small that we will never be able to take pictures of them. If you duck under your desk it will protect you from a nuclear bomb. Computer processors will never run faster than about 40 MHz. There's just too many physical limitations that will prevent us from ever making them faster than that. The U.S. and the Soviet Union both fought against the Germans in WWII, but the Soviet's contribution was fairly minor compared to the whole war. The U.S. had the best tanks in the war too. The U.S. Civil War was all about slavery. The founding fathers all agreed on what the government of the U.S. should be like, and they didn't have politics like we do now back then. You should have seen the looks on my Canadian cousin's faces when I explained to them what the war of 1812 was all about. Quote:
And yet the history books still teach what a great explorer he was and how he was somehow smarter than everyone else. |
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#21
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I distinctly recall seeing a film in grade school with the Pilgrims and Indians sitting down to Thanksgiving dinner together, and the Indians introducing popcorn to the Pilgrims.
I remember thinking it was shenanigans while watching it. |
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#22
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That sounds familiar. I think I may have seen the same film.
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#23
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My favorite example: Every single elementary school science book will talk about the "Six Simple Machines". Except of the six they list, only three are really distinct, and I could come up with about a dozen other distinct simple machines that they don't list. The wheel is just a special case of a level, and the wedge and the screw are just special cases of the inclined plane, but the hydraulic ram, for instance, can be constructed without use of any of the other simple machines.
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Time travels in divers paces with divers persons. --As You Like It, III:ii:328 |
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#24
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I started learning in the '50s, and nearly everything i've learned has had to be scrapped and replaced, or at least revised. It's no wonder old folks get confused.
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#25
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I think that was more of an urban legend than anything taught in schools. And I'm pretty sure it was that we use only 10% of our brainpower (whatever "brainpower" is).
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#26
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Or pool noodles.
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#27
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the article you cite is kind of pointless because sexual selection is a primary driving force in evolution (where sex is involved). it doesn't reinforce the treetop feeding concept, but does continue to imply that darwin supported that concept. here is another good reference: http://www.scq.ubc.ca/the-giraffe-a-...nary-theories/ the stephen jay gould piece it cites is quite good as well. things i've noted over time: 1) not much evidence to support the idea that there is more available food in the treetops. i've seen studies that refuted the claim, though i can't confirm or deny the conclusions. 2) how did the pmg's know how to mate with taller pmgs so that their offspring would have longer necks and more available food? if they are so precognizant maybe they just wanted to be displayed in zoos one day. 3) pmg's necks did not just 'get longer'. there were numerous adaptations necessary for modern giraffe physiology. 4) everybody seems to attribute this to darwin, but he didn't make that claim. find the gould piece, or darwin;s works for a discussion of giraffe tails. 5) not much time is spent on the 'survival of the fittest' argument. giraffes can see predators from a long way off. |
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#28
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When I was a kid, we were taught that sauropods were too heavy to walk on land and must have lived submerged in water. Turns out that their legs were adapted to walking on dry land after all, and in fact the water pressure at the depth required to support their weight would've made breathing impossible.
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#29
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item 4) above:
after posting, i realized i hadn't looked into this since the pre-internet days. the quotations from darwin i've found don't have full context, but maybe darwin did make this claim after all. |
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#30
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The things mentioned fall into different categories:
(1) simplifications - stuff they taught you because you didn't know enough to learn the truth and it would take too long to teach you (Bohr atom, Newtonian mechanics), (2) legends - stuff your teachers thought was true but any good scientist or historian would have known was false (Columbus discovered America), (3) politically correct stuff, (4) old news that hadn't made it into the text books, (5) theories that were dogma at the time but later fell into minority status, (6) discoveries - stuff that no one at all knew about. I think the OP wants (4), (5), and (6). I was a 70's kid so I don't know if these all applied in the '80s/'90s: The moon formed near or was captured by the earth. Megafauna died from the ice age (or its ending). Memory is stored in RNA. 90% (or whatever) of DNA is junk. The five kingdoms of life. Mayan script is unreadable. Jupiter has 12 moons, only Saturn has rings, etc. Four-color theorem, Fermat's last theorem unproved. Last edited by EdwardLost; 05-18-2010 at 05:45 PM. |
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#31
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#32
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I strongly suspect (but can't prove) that the reason Galileo wanted to publish the Dialogue on the Two Great World Systems (the book for which he was prosecuted) when he did was to try and impress the pope, a personal friend with a reputation was as a great progressive and modernizer, and who had supported Galileo in other disputes with the Aristotelian establishment. It might have worked if it had not turned out to be a politically very inopportune moment at which the pope needed to appease his more conservative enemies in the Curia. |
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#33
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While I was TA-ing a freshman physics-for-non-majors course, I remember thinking that almost everything we were teaching was either simplified or "old" (classical) physics. One exception was, as learned in elementary school, that heat transfer is by conduction, convection, or radiation. Knowing quantum mechanics gives you insight into the details but doesn't show it to be untrue.
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#34
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That may actually be a good point. |
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#35
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We were taught in elementary school that the Panama canal had locks to prevent the Atlantic and Pacific oceans from flooding each other somehow, creating mayhem and chaos. In reality, the canal connects the Carribean to the Gulf of Panama, and the locks allowed for much less digging. IIRC, the French gave up on a sea-level canal there some years earlier.
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#36
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actually that point is kind of a catch-all, so i take your point. i guess i'm looking at the complexity of evolution and the difficulty in attributing the numerous changes that brought the giraffe to its current form to any particular reason. thank you. it goes back to the difficulty in attributing any evolutionary change to a simple benefit. |
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#37
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#38
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if you enter the canal from it's western side, and exit on it's eastern side, what body of water are you in? the panama canal is actually a system of canals, locks, and a man made lake. its hard to imagine how the french planned to dig a sea-level canal through a mountain range. |
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#39
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The Pacific
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#40
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Overall, the Panama canal runs southeast, going from the Carribean. I guess the French's imaginations were bigger than their ability.
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#41
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Dinosaurs were also portrayed with their tails dragging on the ground, and standing upright like Kangaroos. I understand that many older museum displays of dinosaur skeletons have their tails broken so they will conform to that posture |
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#42
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I don't know about you, but to me, Pluto is still a planet.
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#43
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Just in case you don't mind someone a little older chiming in I'm still stinging over the scolding I got from a Sociology 101 prof when I questioned his comment about tabula rasa. That would have been in 1972.
Decades later I saw him on the street and reminded him. Asked him if he'd like to discuss it. He said he was busy. That's what I get for being a smarty pants (Twice.) Teachers hate that. Last edited by Tethered Kite; 05-18-2010 at 08:46 PM. |
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#44
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Being from South Carolina, I was taught the opposite, i.e. that everyone says it was about slavery but that was only part of it. I didn't, and still don't, buy the state's rights argument. Any time I've ever heard it argued, it seems pretty clear that the economic or legal reasons for seceding wouldn't have existed were it not for the question of slavery.
Well, okay, I did buy it. What I mean is that, I remember thinking, "That doesn't seem to make much sense, but the teacher said it." Not exactly the best thought process to be encouraging in young people. |
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#45
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I never heard that. Of course I heard little of the contributions of the Soviets, and a lot about ours, but pretty much all nations do that. More or less, it was. Umm, no. Leading those puny ships that far across uncharted waters? Fantastic act of leadership. Yes, he was lucky in that America was there, but his drive, initiative and leadership were great. |
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#46
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Just a matter of interpretation and definiations.
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#47
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http://www.youtube.com/watch?v=QNbjN...eature=related |
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#48
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Oh, for those that care the big proof that the earth moved was that it caused the tides. It unfortunately seems that his explaination would result in 1 tide per day which is a little wrong
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#49
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If Pluto's a planet then so are all the other larger-than-Pluto objects in the Solar System.
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#50
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And yes, I take your point that there have probably been multiple relevant selective factors at work. NOBODY HAS BEEN DENYING THAT. |
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