15 Mind Blowing Math Facts | Insane but True

Did you know there are more ways to shuffle a deck of cards than there are atoms in the universe? Seems crazy, but it's true. Today The Why Files covers amazing math facts (and tricks) that will convince your friends you have super powers.

Math is everywhere. It’s the source code of the universe. Most of the time math makes perfect sense. But sometimes math just gets…. weird.

These math facts that will blow your mind. You'll learn about the Birthday Paradox, secrets of Pi, how to create numeric palindromes with your mind, and our favorite: the mysteries of the number nine.

How many people do you need to get together before you find two that have the same birthday? Here's a hint: not that many.

How quickly can you calculate 1,111,111 squared? We'll show you how to solve this in 5 seconds. You won't believe the answer when you see it.

And nines? Nines have a whole thing going on. Multiplying by nines = magic. Squaring nines = pure sorcery!
〰
🙏 SUPPORT THE WHY FILES

👽 BUY WHY FILES MERCH

💬 CHAT WITH US ON DISCORD

〰

🕵️ Submit a topic, suggestion or just say hi:

🎨 Have a product suggestion or want to design artwork for TWF?

📸 BE A WHY FILES MODEL (and get free stuff!)
📸 Send a photo of you/family/friends watching TWF,
📸 wearing TWF gear, using TWF merchandise:

〰
🎧 THE PODCAST VERSION

〰
⁍ TWF on SOCIAL (in order of importance)

〰
🐠 BETTER CHANNELS TO WATCH:

---
Links and Sources

Birthday Paradox

String Girdling the Earth

Folder Paper into Space

Lily Pad Riddle

The formula for how the nine squared pattern works

Making history by shuffling a deck of cards

Graham's Number

Googol and Googolplex

AJ's favorite big number calculator

Numeric Palindromes

Famous Palindromes

--- Contents of this video ---------------------
00:00 - Making History
00:53 - Logo
00:57 - Introduction
01:51 - Birthday Paradox
03:02 - String Around the Earth
04:51 - Palindrome 1s
07:06 - Making History AGAIN
07:17 - Mysterious Nines
11:25 - Exponential Progression
15:30 - Factorials
19:13 - BIG Numbers
22:00 - Thanks for watching!
22:26 - Outtakes

#math #science #numbers

[SofiaB-febb]

New favourite channel alert ❤️❤️ please keep making more! Love from lockdown in London 🙌🙌

[mradamstp]

It’s fun to come back and see how much the production level has increased over the years. Keep it up

[gazorpagrantgaming]

Seeing how different the show is now is wild, but it just shows the amount of work AJ has put in. Great stuff man.

[lilreddevil]

Math would have gone very differently for me if my teachers had explained these concepts as simply as you did.

[adeptus]

With this video, I have successfully watched every single Why Files.

[tubedude]

I took a class on statistics years ago in college and it ended up being one of the most interesting classes I have ever taken. The professor not only knew the subject but knew how to present it! Fascinating stuff!

[MrFishsDogGunter]

I hated math in school. But as an adult, I find myself marveling over it. When explained correctly.

[Rcthans]

After watching all your recent videos with big stories. This this is just as awesome. The 52 deck shuffle still is so incomprehensible

[cliftonking]

Let's see...adding the shorts and after files...multiplying the time invested...divided by the knowledge gained...equals....being a part of the best channel out there!

Love this channel so much. I appreciate all the time you put into these videos! I have almost gone through the entire backlog now after only discovering you, not so long ago. All I need to watch is the after files and shorts and I've done it! Seriously, you are awesome and can't wait to see how many more fans come along, and see all the new content! Thank you!

[Nannyfrank]

You’re gonna go huge man, very professional video. Very intelligent and very interesting to watch! 👏

[johnbutler]

love watching old videos of why files and seeing how far you have come.
Hecklefish not moving is crazy lol

[dent]

Seeing how hecklefish has evolved over ~200 episodes is really cool! His voice sounds so much better in new eps too. :) really great seeing the show evolve

[zorkblat]

I have made it from the most recent video through to this very first upload. You are consistent, fun, and objective. Keep it up AJ, Hecklefish, and crew. Seriously love it! <3

[jakeschultz]

Is it just me, or he seems so much more interested and passionate about this, than any of his other newer videos? He really enjoys math and breaking it down for us.
What a terrific teacher.

[jakemyers]

Mind successfully blown, well played sir, well played!

[leesagenier]

Love this channel! I seriously try to watch it every day. Thank you for doing all the research and keeping it so fascinating 😊

[samzpendle]

Learned exponential growth and factorials in school, but your explanation of exponential growth and factorials retought me that in like 30 seconds where as it took me a week to learn it from school. Kudos to you The Why Files!

[danamummert]

Just one more fun fact for #9.
The multiple table goes 09, 18, 27, 36, 45, 54, 63, 72, 81, 90.
Love love love your videos!

[johnohara]

very interesting stuff and professionally done!

[bijouxdoum]

I'm going down memory lane and rewatching your first videos. It feels like these 3 years have flown by. Thank you for touching on interesting subjects, and you give an unbiased opinion that stays neutral on controversial topics.

You have a gift, my friend.
The production aspect of your videos, the research, editing, animation, and your flow just works perfectly. I got through rough times because of your entertainment. You took my mind away from the suffering and put a smile on my face.
You deserve every dollar you make from your videos and ad revenue.
Stay safe, Your friend from Kentucky