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Your teacher, mom, and virtually any adult with a thoughtful mind would never approve of Twitter as a learning tool. And how would they with this whole infinite source of the not-very-serious side of the internet where memes, jokes, and burns are roaming free?

But people are proving them wrong by sharing incredible facts brought to them by Twitter that should have been put in the textbooks. From realizing the symbol “&” is a ligature for the word "et" to finding out that an 18-inch pizza has more of a good thing than two 12-inch pizzas, these are some of the facts that could have been part of my wisdom bank this whole time.

So scroll down, upvote your faves, and after you’re done with this post, check out our previous list of 30 random facts that will make you feel "today years old."

#2

Interesting-Facts-Learned-From-Twitter

jasonhickel Report

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hispanic! at the disco
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

And still today, Natives are being harassed by police for protesting there peacefully. Nothing much has changed..

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#3

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stephens_ben Report

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Fireflower
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

4% of 75 = 75% of 4. 4% of 75 = 4 x (0.75) 4% of 75 = 4 x (3/4) 4% of 75 = 3 Proofs are easier to visualize, I hope this helps!

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Captain Legible
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

An easy way to look at this: per cent means "per hundred" or "divide by a hundred", and "of" means "multiply" when fractions are about. So 4% of 75 is (4/100)x75 and 75% of 4 is (75/100)x4, so they're both just (75x4)/100.

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karin s.
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

how can this get down votes - it is the correct explanation and proof of the hack.

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Jesse
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

It used to be part of the daily life skills curriculum taught at schools. But beginning in the 1970s curriculums were commercialized and "tricks which do not explain or utilize core concepts" were sidelined. There's a solid argument there, but that's the case with many bad ideas. At the end of the day the academic "tricks" used so successfully to build the post war infrastructure and economy were discarded in the name of commerce to sell textbooks.

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Louloubelle
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Something a little similar. I had a friend that couldn't figure tipping. I know some of you are from outside the US, but 15-20% is considered usual. My friend and I tend to be good tippers at 20%, plus it's easier. I told her just figure 10% and multiply it by 2. 10% is much easier to figure on a bill than 20.

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Alex Newell
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I did a similar trick when doing mental math in highschool. I'd move the decimal once for the 10%, then move it again for 1% and multiply by 5. People probably thought I was a witch.

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Noel Bovae
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

For those still confused: 50% of something is easy, right? 50% of 20 is 10. But trying to figure out 20% of 50, now that sounds a bit more difficult. This trick is showing you that the answer is still going to be 10. Because 50% of 20, is exactly the same thing as 20% of 50.

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Kisses4Katie
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

So 3? Is 3 4% of 75? I need to get good at math. I'm about to go to school for science! 😮

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Nevaeh Milton
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

i didnt learn this yet but it looks like somting i will never use in real life

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Dorothy Cloud
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Now, that is something I will be able to use in my life. Why wasn't that ever told before?

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Nothanks L. Walk
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

See this is the problem with murican diseducation : kids memorise & regurgitate, but learn nothing. This is not a life hack, this is basic understanding of how multiplication works and why. Half the things I should have learned in middle & high school, I had to teach myself later in life because I discovered I was using memorised times tables instead of understanding mathematics, and memorised spellings instead of an understanding of linguistic structure.

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Fern Shoemaker
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Omigod math i scary! That have me house bumps. You'd better not teach me anything else. Just to be safe.

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Marcellus the Third
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

How is that a hack? It's just the definition of fractions. E.g. 1/3rd of 2 is 2/3rd of 1. Percents are just fractions of 100.

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CR Harvey
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I'll learn this ha k when I've finished learning metric conversion in my head.

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Jo Choto
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Ooh, I can't believe I didn't know that. I love this information.

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Tim
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Do what I do. Multiply the two numbers and then divide by 100. It works every time. No tricks.

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Anna Witt
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Really? Can you think of anything else that will confuse us even more?

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Karan Harpalani Wadhwani
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3 years ago

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Honeybuzz
Community Member
3 years ago (edited) DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I learned this at school🤔 it's part of basic fractions lessons in India. Is it not in other countries?

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Jace
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Could’ve had a better explanation. I’ve a literal math disability... so I’m still iffy on this.

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Jace
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Thanks for the down-votes. My dyscalculia is a real thing, but whatever...

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Tom Brock
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

you can do your 9 times table with your fingers. Wish i knew that in school

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Peet
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

This is what you learn at the age of 10... Don't pretend this guy needs a Nobel prize...

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Kenny Oesch
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

why dont you just calculate y times 0.xx percent? thats the easiest way....

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El Dee
Community Member
3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

I only found this out last week. I can get that our teachers wanted us to actually DO the maths BUT the whole point of school is to prepare you for life..

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Look, I am not saying we should believe all that Twitter has to offer. But it turns out, the things we were taught at school are not so innocent either. Some facts we still believe to this day are complete myths, and they had better be laid out bare before you become "today years old" to realize they aren’t true.

You probably would place a pretty high bid on the fact that Columbus discovered America. You’re not the only one. A 2005 survey showed that 85% of Americans believed Columbus discovered the continents and only 2% correctly answered that he couldn’t have discovered America because it was already inhabited by Native Americans.

#4

Interesting-Facts-Learned-From-Twitter

juliamacfarlane Report

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Whitehart
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Caligula declared victory and his soldiers brought back chests full of seashells as proof.

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#5

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thesahilshah Report

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Gareth Graham
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

The London Underground maintain several stations that trains never use. They are reserved for TV and movie locations so as not to close down functioning stations

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Another fact which turns out to be a myth is the tongue map idea, which suggests that different parts of our tongues identify different kinds of tastes. However, the University of Florida Center for Smell and Taste stated that “the locations of those taste buds aren't in accordance with the 'tongue map.'” And even if taste buds are indeed receptive to certain types of tastes, the difference in reality is tiny.

You've probably heard how Einstein failed math in school and was not an A student in general. It turns out, the only exam he failed was an entrance test to the Zurich Polytechnic he had to take in French, which he didn’t speak well at the time.

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#13

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minutephysics Report

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chi-wei shen
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

A small group of wooly mammoth existed on Wrangel Island in the Arctic Ocean until about 2000 B.C.

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#17

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Museum_Facts Report

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Mishte Tine
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

She’s also small and behind a ton of protection. She’s beyond amazing.

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#18

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yourpappalardo Report

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Shelp
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

...which is perfectly logical if you have French or Latin as your first language

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#20

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Okeating Report

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Sergio Bicerra Descalzi
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Read a funny story about him. He used to pay meals with checks. People didn't cash them cause Dali's signature was more worthy than the pay, so he got many free meals doing so. Not sure if its true, but like this story.

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#21

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fermatslibrary Report

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Tiny Dynamine
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Did you know you can get free extra pizza slices if you cut your pizza into 8 pieces instead of 6? ;)

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#22

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MaaloufMD Report

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Aisha Boudy
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

Googol Plex (it's a number) is so large that if u wrote each of its zeros on separate atoms in the universe, there won't be enough space to finish writing all the zeros.

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#23

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LenaInMN Report

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Saurin Apriliawan
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

My identical twin cousin just told me that, although wearing exactly the same clothes and has quite similar voice, their toddlers can still tell them apart.

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#24

Interesting-Facts-Learned-From-Twitter

sunny Report

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B
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3 years ago DotsCreated by potrace 1.15, written by Peter Selinger 2001-2017

But how would we know? It's not like, 'Oh hey Bob, it's you - high five!' or anything. They're surly little guys.

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#30

Interesting-Facts-Learned-From-Twitter

terpityderpity Report

Note: this post originally had 47 images. It’s been shortened to the top 30 images based on user votes.

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