Asklemmy

The D.A.R.E. program.

That blood is actually blue until it gets in contact with air

Basically everything I can recall being told in D.A.R.E program classes (war on drugs era propaganda taught in public schools in the USA) was utter nonsense and fabricated bullshit. After actually having personal experience with most of the substances they vilified, none of the effects - good or ill - are what I was taught in that ridiculous program.

On the contrary, some of the fear tactics they used made me curious to investigate on my own. The breathlessly scared rural teacher describing the mind bending effects that "magic mushrooms" was supposed to have sounded fascinating to teenage me. In reality, they are very fun and therapeutic to use, but nothing like the wild Alice in Wonderland mind journey they made it sound like it would be.

Not only in School, even at university I was taught the DNA structure was solved by Watson und Crick. But they stole data from Rosalind franklin and even openly admitted it years later.

-Coequal branches of government

-Separation of Church and State

-Life terms for SCOTUS ensures political impartiality

-The second amendment was so that we could defend ourselves (see: redcoats)

-Bohr system

Going to college was guaranteed success in life.

We don't know what the appendix does, the whole pluto thing, I think the Oxford comma is going out of style, and cursive in general.

But I love cursive, mine was "very nice" according to my teachers.

My favourite one was that the earth is 6000 years old

That CO2 makes up 0.03% of the atmosphere. But it was true then.

Haven't seen anybody post this but how gender and sexuality is, schools are so fucking about straight mom and dad only relationship and nothing else. Man and wife bullshit when there's infinite amounts of gender and sexuality and diversity out there. Fuck I hate Amerikkka

The asteroid that killed the dinosaurs was seen as just one of several possible theories, rather than accepted fact.

The appendix is a vestigial organ that doesn't actually do anything in humans. (It might still fit the definition of vestigial, but it's far from useless and we keep learning more about how valuable gut health is.)

A huge number of aspects of the US's geopolitical enemies, and its own mythologization of the Founding Fathers and early settlers.

There was also a really bad political test with liberalism on the left and conservativism on the right, and we had to take a test and put what we got in front of everyone, which was very strange.

Physical Vs chemical changes.

It was typically taught that physical changes are differentiated from chemical changes because they could be "undone" or that they had "no chemical reaction." Which was very confusing, because you can't uncut paper, and dissolving stuff in water clearly results in different chemicals being produced, yet both were examples of physical changes (actually the latter is sometimes taught as a chemical change). Furthermore, most chemical changes are actually reversible.

It has since been recognised that this classification is BS, and most changes actually exist on a continuum.

How planes generate lift.

It was false then but my seventh and eighth grade science teacher told us that blood was blue. My mom was a nurse so I knew that it was bullshit but was definitely confused because he was my science teacher.

My sysadmin professor told me to not learn about tape backups because they are going away soon

Like 3 years later ransomware was invented

Making grimaces and being told that your face may remain that way if you don’t stop making them… 🤡

Supersize me was fake and tonsils are not a useless byproduct of evolution.

I was taught that Jupiter had 17 moons, Saturn has 12 and Pluto has 1. Many more have been discovered since.

Then there's the whole "different areas on your tongue taste different flavors." Like you only taste sweet with the tip of your tongue, the middle tastes salty, etc. I remember being given various substances by my fifth grade teacher like sugar, coffee, lemon juice, table salt etc. and we tried putting them on different areas of our tongues and we were like "...no, we taste everything everywhere."

The myth that glass is a very thick liquid. It's actually much weirder than that. https://gizmodo.com/the-glass-is-a-liquid-myth-has-finally-been-destroyed-496190894

I have one that was proven false, and then later re-proven true: the existence of the brontosaurus.

When I was in elementary school, we were taught that they existed, they were big, etc. Then, at some point while I was in college, I discovered that actually what we thought was a brontosaur was a brachiosaur or an apatosaur. And then, when my kids went to school and learned about the brontosaur, I discovered that actually, they did exist!

"This is the best time of your life, it will never be as easy."
I wasted more time at school than at work and I didn't have Fridays off, so that was a lie.

In my college Econ 101 class I was taught that "economic liberalism" would lead to political liberalism. I knew that was a myth back then, but my professors insisted. Twenty years later we've got economic nationalism and political fascism taking over everywhere.

Gravity Waves didn't exist according to my highschool science teacher

That fluoride and vaccines are bad for you… tbh, I only believed it for 2-3 weeks until I did my own research, but it was a frightening clarification. Didn’t believe that teacher a single word after that.

I was taught that the moon landing was fake.