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Maths for Kids / Maths is Not Boring: The Kids Maths Podcast

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Maths for Kids / Maths is Not Boring: The Kids Maths Podcast

By Kidopoly

A groundbreaking podcast for curious kids aged 4-12 that proves maths is anything but dull.Join our fictional AI hosts Mira, a brilliant 9-year-old, and her younger brother Finn, age 7, as they set off on a journey into one great mathematical idea each episode. From numbers that never end and shapes with only one side to the strange rules of chance and the secret patterns in a snowflake, each episode uncovers an idea that is simple at its heart and extraordinary because it is everywhere - told in a way that actually makes sense to kids.Nobody does sums here. Whether you're discovering why infinity comes in different sizes, how a shuffled pack of cards is almost certainly in an order no one has ever seen, why honeycombs are made of hexagons, where the number zero came from, or what makes a prime number special - Maths is Not Boring turns big ideas into stories that ignite curiosity and wonder, and gives kids one more clue to how the world works.Because maths isn't a list of rules to learn. It's the most beautiful way anyone has ever found of seeing the world.A note on why we use AI. For us, AI allows us to deliver learning at a scale and quality that previously would have been too expensive. If we make the odd technical error, or the sound goes a bit funny, bear with us, we’re trying our best. We hope you enjoy the show!

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Every episode, a new adventure.

41 episodes
·13:49

What is a fraction?

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Have you ever thought about how sharing a pizza is actually a magical mathematical promise? Welcome to the incredible world of fractions! Join Mira and Finn as we travel back over 3,500 years to ancient Egypt to solve a very hungry mystery: how do you share seven round loaves of bread fairly between ten people? (Hint: you can't do it without breaking the bread!). Discover the amazing Rhind papyrus, a gigantic sixteen-foot scroll filled with ancient puzzles copied out by a clever scribe named Ahmes. Learn how the ancient Egyptians built almost every fraction out of simple pieces with a "one" on top, like a half, a third, or a tenth—and why they gave "two-thirds" its very own VIP symbol! Fractions aren't just boring numbers on a page; they are the ultimate promise of fairness! Whether it is the half-time whistle at a football match, a quarter past three on the clock, or making sure everyone gets the exact same amount of pepperoni pizza, fractions are hiding everywhere in your daily life. Get ready to slice up the world and see maths in a whole new way!
·12:48

What is a tessellation?

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Have you ever looked closely at a bathroom floor, a brick wall, or a beehive's honeycomb? They are made of shapes that fit perfectly together with zero gaps! This mathematical magic is called a tessellation! For decades, mathematicians wondered about an impossible puzzle: could just one single shape cover an endless floor without the pattern ever repeating itself? They called this mystery the "einstein" problem (which means "one stone" in German). Many experts thought it was completely impossible! But in 2022, a retired print technician in Yorkshire named David Smith made a mind-blowing discovery. He wasn't using giant supercomputers—he was just having fun cutting shapes out of cardboard on his kitchen table! David discovered a wild, 13-sided shape he called "the hat" that solves the puzzle perfectly. You can lay these little hats down forever, and the swirling pattern will never, ever repeat! Join Mira and Finn on Maths is Not Boring as they explore this incredible story of curiosity, cardboard shapes, and infinite patterns! You will never look at a tiled floor or a jigsaw puzzle the same way again!
·10:25

What is the equals sign?

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Have you ever wondered where the equals sign came from? Most of us think those two little horizontal lines just mean "ta-da, the answer comes next!" But the true story is much bigger, and it starts all the way back in 1557! Join Mira and Finn as they travel back in time to meet Robert Recorde, a brilliant Welsh doctor and mathematician. Robert was writing a magnificent book called The Whetstone of Witte, but he got completely fed up with writing the words "is equal to" over and over again with his scratchy feather quill. His solution? He drew two giant parallel lines! Why? Because as he put it, no two things can be more equal! But here is the most amazing secret: the equals sign doesn't actually mean "calculate this now." It is actually a picture of perfect balance! Imagine a bright red see-saw hovering perfectly flat, or a fair trade of playing cards with your friends. Discover how this simple shortcut totally changed the world of math, and why Robert’s clever new symbol was surprisingly slow to catch on. Get ready to see tiny see-saws everywhere!
·11:42

What is the Law of Large Numbers?

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Have you ever flipped a coin and wondered if you could guess what it would land on? If you toss a coin once, it’s completely wild—anything could happen! But what if you tossed that same coin ten thousand times? During World War II, a mathematician named John Kerrich was stuck in a camp in Denmark with a lot of time on his hands. So, he and his friend decided to play the longest game ever! They flipped a coin 10,000 times and wrote down every single result. Did they get exactly 5,000 heads and 5,000 tails? Not quite, but they got amazingly close with 5,067 heads! This incredible coin-flipping experiment proved a mathematical secret called the Law of Large Numbers! First discovered by a man named Jacob Bernoulli in the 1700s, this amazing rule shows us that even when one event is totally unpredictable, a huge number of events will always settle down into a clear pattern. Join Mira and Finn as they explore how this invisible rule turns wild chaos into steady order!
·10:06

What are negative numbers?

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Have you ever opened an empty box and tried to take three things out? It sounds impossible, right? For thousands of years, humans thought zero was the absolute bottom of everything! But what if there is a whole hidden world hiding beneath nothing? Join Mira and Finn on a mind-bending mathematical adventure to discover the secret underground world of negative numbers! Travel back 2,000 years to ancient China, where brilliant mathematicians used special black wooden counting rods to track numbers less than zero. Then, zoom over to India in the year 628 to meet Brahmagupta, the genius who wrote the official rules for them! But the craziest part? Hundreds of years later, some European mathematicians completely refused to believe they were real, even calling them "absurd numbers"! Learn how numbers aren't just for counting apples—they are like a giant ladder stretching in both directions forever! From freezing winter thermometers and deep-diving submarines to elevator basement buttons and the wacky scoring of golf, you will start spotting negative numbers everywhere. Get ready to go below zero and double the size of the mathematical universe!
·10:11

What is a fractal?

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Have you ever wondered how long the coast of Britain is? Well, the answer depends entirely on the size of your ruler! If you use a giant ruler, you'll get one number. But if you use a tiny ruler, you have to measure every single zig-zag, cove, and rock, making the coast seem magically longer! This wild, mind-bending trick of nature is all about something called a fractal. Join Mira and Finn as they zoom into the infinite, never-ending world of fractals! We'll solve the mystery of why Spain and Portugal got completely different numbers when they measured the exact same border. You'll also learn how a brilliant mathematician named Helge von Koch drew a special snowflake whose edge goes on forever, but still fits perfectly inside a simple circle! Fractals aren't just crazy puzzles—they are hiding all around us in the real world. From zooming in on pointy Romanesco broccoli and branching ferns, to cracking lightning bolts and the magical computer-animated trees in your favorite movies! The closer you look, the more detail appears. Get ready to never look at nature the same way again!
·12:33

What is place value?

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Have you ever wondered why we count in tens? Look down at your hands—you are holding the answer! Because we have ten fingers, most of the world uses a magical mathematical superpower called "place value" built all around the number ten. But not everyone did it this way! Did you know the ancient Maya counted in twenties because they used their toes, too? Or that the ancient Babylonians counted in sixties, which is exactly why we still have 60 seconds in a minute today? In this mind-expanding episode of Maths is Not Boring, Mira and Finn uncover the greatest trick in the universe: the number slide! Discover how a brilliant system born in ancient India, carved onto shiny copper plates, lets us write every single number that will ever exist using just ten simple shapes. Plus, find out why the number zero is the ultimate heroic placeholder! Join us to see how a simple step to the left turns a tiny one into a massive trillion, and why you will never look at a video game scoreboard the same way again!
·11:16

What is the fourth dimension?

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Imagine a whole universe completely flat like a piece of paper! There is no "up" and no "down"—just forwards, backwards, left, and right. In 1884, a headmaster named Edwin Abbott Abbott wrote a mind-bending story called Flatland about this exact idea! The people living in Flatland are flat shapes: triangles, circles, and a very confused square. Because they are totally flat, they can only ever see each other's edges as straight lines! But what happens when a solid, 3D sphere from our world visits Flatland? To the square, it looks like pure magic! A tiny dot appears out of nowhere, grows into a giant circle, shrinks, and then completely vanishes as the ball passes straight through the paper! The sphere even has to pull the square out of his universe to show him what "up" really means! Join Mira and Finn as they explore this incredible story and uncover a massive mathematical secret. Discover how scientists use Flatland to imagine a mind-blowing fourth dimension and learn what the shadow of a 4D tesseract looks like! Get ready to look at the universe in a completely different way!
·12:44

What is the Pigeonhole Principle?

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Did you know there are definitely two people in London right now with the EXACT same number of hairs on their heads? And nobody even had to count them to figure it out! This mind-bending math magic is called the Pigeonhole Principle. It is super simple: imagine you have four sleepy pigeons, but only three wooden boxes for them to sleep in. No matter what, at least one pigeon is going to have to share a box! That simple idea is actually a mathematical superpower, perfected by a German mathematician named Peter Gustav Lejeune Dirichlet in 1834 (though people in France were using it for hair puzzles way back in 1622!). Join Mira and Finn as they use this awesome rule to uncover amazing hidden secrets about the world. Find out why any group of 13 people MUST have two people with the same birthday month, why pulling five playing cards always gives you a matching suit, and how this idea even works for counting leaves on trees! Get ready for a mathematical adventure!
·14:26

What is the Monty Hall problem?

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Imagine you are standing on a brightly lit game show stage! Three colorful doors are in front of you. Behind one is a shiny new car, but behind the other two... are live, chewing goats! You pick a door. Suddenly, the host opens a different door to reveal a goat! He smiles and asks: "Do you want to stick with your first choice, or switch?" What would you do? Most people think it’s a fifty-fifty chance and doesn't matter, but they are WRONG! In 1990, a puzzle genius named Marilyn vos Savant wrote that switching actually doubles your chances of winning! When she shared this secret, thousands of people—even math professors—wrote angry letters telling her she was making a huge mistake! But guess what? She was completely right! Even the brilliant mathematician Paul Erdős didn't believe it until he saw a computer play the game thousands of times. Tune in to find out how a simple clue can completely change your chances, and learn the mind-bending math secret behind the famous Monty Hall problem!
·13:27

What is the Four Colour Theorem?

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Imagine a totally blank map of the world. Now, imagine you have to paint every single country, but no two touching countries can be the same color! How many colors would you need? You might think you'd need dozens, but here is a giant math secret: you only ever need FOUR! Join Mira and Finn on Maths is Not Boring as they explore the mind-bending Four Colour Theorem! It all started in 1852 when a student named Francis Guthrie noticed a strange pattern while coloring a map of England. Little did he know, he had stumbled onto a mystery that would stump the world's smartest mathematicians for 124 years! Discover the thrilling story of a brilliant math proof that everyone believed for eleven years before a tiny mistake was found hidden inside it. Then, fast forward to 1976 to see how a giant, room-sized supercomputer finally solved the ultimate map puzzle! But wait... did the machine's answer actually count as a real math proof? Tune in to uncover the wild history of maps, giant computers, and a beautiful mystery you can test with just four crayons!
·12:05

What was the Seven Bridges of Königsberg?

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Imagine trying to go for a sunny Sunday walk, only to discover the path is mathematically impossible! In 1735, the beautiful city of Königsberg had two huge islands sitting right in the middle of a wide river, connected to the rest of the town by exactly seven bridges. The townspeople made up a massive puzzle: could anyone walk across all seven bridges exactly once without ever crossing the same one twice? People tried for years, wandering around and tracing maps, but everyone got stuck! It wasn't because they were bad at directions—it was because of math! A brilliant young mathematician named Leonhard Euler decided to solve the mystery. Instead of walking the bridges himself, he erased the entire city from his map and replaced the land and bridges with simple dots and lines. By inventing the world's very first mathematical network, he proved the famous walk couldn't be done! Join Mira and Finn on Maths is Not Boring as they uncover how Euler’s amazing join-the-dots trick gave us the amazing graph theory used to power map apps and the entire internet today!
·13:45

What is exponential growth?

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Can you fold a normal piece of paper enough times to reach the Moon? It sounds completely impossible, but if you could fold a single sheet of paper just 42 times, the stack would explode past the clouds, past the satellites, and crash right into the Moon! How? It is all thanks to a math superpower called exponential growth! In this mind-blowing episode, Mira and Finn uncover how doubling something over and over makes it grow faster than you can even imagine. You will hear the incredible true story of a California high schooler who smashed a world record by folding a massive, 4,000-foot piece of tissue paper 12 times in a shopping mall! Plus, discover an ancient legend about a tricky chessboard, a greedy king, and a pile of rice bigger than Mount Everest. We will even dive into a sneaky riddle about a pond full of lily pads that will totally trick your brain! Get ready to have your mind blown by the magic of doubling!
·13:28

What is zero?

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Have you ever tried to count... absolutely nothing? For thousands of years, humans counted sheep, gold coins, and days, but they had absolutely no number for zero! If you had three apples and ate them all, you just had an empty hand. But as math got more complicated, people realized they needed a way to hold empty spaces open so numbers like 15 wouldn't accidentally get mixed up with 105! Ancient civilizations like the Babylonians and the Maya invented clever placeholders to fix this—the Maya even used a beautifully carved picture of an empty seashell! But it wasn't until the year 628 CE in India that a brilliant mathematician named Brahmagupta gave zero its very own superpowers. He figured out that zero wasn't just a blank space; it was a real number with magical rules! If you add it, nothing changes, but if you multiply by it, everything vanishes! Poof! Join Mira and Finn as they trace the incredible journey of zero from ancient India to Europe with the help of a man named Fibonacci. Discover how the invention of nothing completely changed the world!
·11:55

What is symmetry?

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Have you ever looked closely at a snowflake landing on your mitten and wondered why it looks like a perfect little star? Join Mira and Finn as they uncover the amazing, invisible rules of the universe! In this mind-bending episode, you will discover the magical math of symmetry—the reason why spinning a snowflake, flipping a butterfly's wing, or sliding a honeycomb leaves them looking exactly the same! But symmetry isn't just a cool trick of shapes. You will travel back in time to 1915 to meet Emmy Noether, a brilliant mathematician who solved a massive puzzle that even stumped Albert Einstein. She proved that every time you see symmetry in nature, the universe is actually hiding a secret law of physics! From water molecules shaped like tiny Mickey Mouse heads freezing into perfect hexagons, to bouncing balls traveling forward in time, get ready to see the world in a whole new way. Math has never been this beautiful!
·11:37

What is a Mobius strip?

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Have you ever seen a shape with only one side? It sounds completely impossible, right? Everything in the world has a top and a bottom, or an inside and an outside! But in 1858, a German mathematician named August Ferdinand Möbius discovered a shape that breaks all the rules! By taking a simple strip of paper, giving it a single half-twist, and taping the ends together, he created the mind-bending Möbius strip! If a tiny ant walked along this loop, it would travel over the entire surface and end up exactly where it started without ever crossing an edge! This single twist opened the door to a wild new kind of maths called topology, where shapes can stretch and bend—meaning a doughnut and a coffee mug count as the exact same shape! The coolest part? Möbius strips are hiding everywhere in our everyday world! You can find them in the twisting arrows of the recycling symbol, heavy-duty factory conveyor belts, and even wild upside-down roller coasters! Join Mira and Finn as they explore how one little twist can completely change the universe!
·14:03

What is a prime number?

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Did you know there are "rebel numbers" hiding in the world right now that absolutely refuse to follow the rules?! Welcome to the wild, mind-bending world of prime numbers! A prime number is a special number that can only be divided evenly by itself and the number one—like 2, 3, 5, 7, and 11. They are the unbreakable building blocks of mathematics! Over two thousand years ago, a brilliant mathematician named Euclid proved an amazing secret: prime numbers never, ever run out. They go on for infinity! But here is the craziest part: nobody knows the pattern of where the next one will appear! In October 2024, computers found the largest known prime number, and it is so gigantic it has over 41 million digits! Today, we use these massive, unbreakable numbers as secret digital padlocks to keep our phone messages completely safe. Even insects use them! Discover how mysterious 13-year and 17-year cicadas use prime numbers to outsmart hungry predators in the wild. Join Mira and Finn as we unlock the greatest unsolved mystery in mathematics!
·10:57

What is a permutation?

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Have you ever played a game of cards like Go Fish or Snap? What if I told you that every time you shuffle a brand new deck of 52 cards, you are holding a tiny piece of history that has almost certainly never existed before in the universe?! It sounds like magic, but it is actually the incredible maths of permutations! Join Mira and Finn as they explore how ordinary playing cards can be ordered in more ways than there are atoms in our entire Milky Way galaxy. That is a massive number with 68 digits! We will also travel back to 1992 to meet a real-life magician-turned-mathematician named Persi Diaconis. He and his partner Dave Bayer proved that it takes exactly seven "riffle shuffles" to completely and perfectly mix up a pack of cards. You will learn how a giant, invisible factory of numbers makes possible combinations explode faster than you can count. Get ready to have your mind totally blown—the next time you shuffle a deck of cards, you will be holding a brand new, totally unique pattern right in the palms of your hands!
·13:41

What is infinity?

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Have you ever tried counting as high as you possibly can? What happens if you never stop adding one? You get to infinity! But wait... did you know that forever actually comes in different sizes?! It sounds impossible, but it is completely true! Join Mira and Finn on a mind-bending adventure to the 1870s to meet a brilliant mathematician named Georg Cantor. He shocked the entire world by proving that some endless things are actually bigger than other endless things! We will explore a giant, glittering hall to see how numbers pair up perfectly, and check into the amazing Hilbert's Hotel—a massive, endless building that is always completely full, yet somehow always has room for one more guest! Even though people laughed at Cantor's bizarre discoveries, he proved that infinity isn't just out in deep space. It is hiding right inside your pencil case! Get ready to stretch your brain and discover why a tiny, one-inch pencil line holds more points than there are counting numbers in the universe. Tune in and find out why math is definitely not boring!
·12:27

What is the Birthday Paradox?

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Have you ever wondered if someone in your classroom shares your exact birthday? It feels like it would take hundreds of kids to find a match, right? Well, get ready to have your mind blown! In this episode, Mira and Finn uncover the amazing mathematical secret known as the Birthday Paradox! It turns out, if you put just twenty-three people in a room, it is more likely than not that two of them will share a birthday. How can that be true when there are 365 days in a year?! We will learn how brilliant mathematician Richard von Mises published this incredible puzzle in 1939. You will discover why our brains trick us into counting individual people instead of invisible pairs, and how the number of chances explodes super fast! A room of 23 people actually makes 253 unique pairs! We will even find out how a football pitch has exactly 23 people on it at kickoff, and how computers use this exact same maths to keep your passwords safe online. Join us to find out how coincidences that feel like absolute magic are really just hidden chances!
·10:50

What is pi?

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Did you know that every single circle in the universe is hiding a secret, endless number? Join Mira and Finn on Maths is Not Boring as they uncover the wild and wondrous mystery of Pi! Whether it is a tiny coin in your pocket, a spinning bicycle wheel, or a giant planet floating in space, every circle shares the exact same mathematical magic. Travel all the way back to ancient Greece to meet a clever mathematician named Archimedes, who figured out how to trap this tricky number just by drawing shapes in the sand! But here is the most mind-bending part: the digits of Pi go on forever and ever without repeating. From 3.14 to over one hundred trillion digits discovered by modern supercomputers, this incredible number simply never stops! Discover why Pi isn't just in kitchen plates and clocks, but also in ripples on a pond and the spinning orbits of the stars. You will never look at a circle the same way again!
·13:52

What is a googol?

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Have you ever tried to think of the absolute biggest number in the world? A million? A billion? What about a number so gigantic that it is bigger than all the atoms in the entire known universe? Welcome to the mind-boggling world of the googol! In this incredible episode of Maths is Not Boring, Mira and Finn explore a giant number that almost breaks your brain. Discover how a mathematician named Edward Kasner wanted to understand a one followed by exactly a hundred zeros. But what should he call it? He asked his nine-year-old nephew, Milton Sirotta, who came up with the silliest name ever: a googol! You will also learn about an even bigger number called a googolplex, which is so huge you could never write it down even if you magically turned the entire universe into paper! Plus, find out how Milton’s funny made-up word eventually inspired the name of the most famous internet search engine on Earth. Get ready to stretch your imagination and discover why counting never, ever runs out of room!
·12:12

Why did Gustave Eiffel use triangles?

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Have you ever wondered what the strongest shape in the world is? Grab some straws and let’s find out! If you pin four straws together to make a square and give it a tiny poke, it squashes completely flat. But if you pin three straws into a triangle, it won’t budge at all! Mathematicians call this amazing superpower "rigidity." Because a triangle's sides lock its corners perfectly in place, its shape cannot change! Travel back in time to Paris in 1889 to see this superpower in action. The brilliant engineer Gustave Eiffel wanted to build the tallest tower in the world. People thought he was crazy and that the roaring wind would blow it down! But Eiffel knew a secret. He didn't build a solid box; he built a massive open web using over 18,000 pieces of iron, laced together into thousands of triangles! The wind blew right through, and those super-strong triangles held the Eiffel Tower firmly in place. From the frame of your bicycle to giant bridges and electricity pylons, triangles are quietly holding up our incredible world. Join Mira and Finn as we explore the magic of rigidity!
·12:17

What is binary code?

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Have you ever wondered how your favorite video game, cartoon, or tablet actually works? It feels like magic, but deep inside your computer, there are only two tiny choices making it all happen: a one or a zero! Welcome to the amazing world of binary code! Long before computers were ever invented, a brilliant thinker named Gottfried Wilhelm Leibniz figured out a whole new way of counting using just two numbers. He wrote it down way back in 1679! But why does a computer need binary? Because computers run on electricity! Inside your screen, there are millions of microscopic switches flicking on and off at incredible speeds. An "off" switch is a zero, and an "on" switch is a one. When these ones and zeros are grouped together, they tell the computer exactly how to light up tiny dots called pixels to draw a green dinosaur, play a catchy song, or launch a rocket in your favorite game. Join Mira and Finn as they uncover the secret hidden code that powers our entire digital world. Get ready to have your mind blown!
·10:55

Averages for Kids: Why No One Is Average in Every Way

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The story of averages for kids: how around 1950 Gilbert Daniels measured 4,063 United States Air Force pilots and found that not one was average in every way.

• Why cockpits built for the average pilot fitted nobody
• What an average tells you about a crowd, and what it cannot tell you
• How the answer was seats and pedals that adjust, like the seats in a car
• Quiz questions to answer along the way

Maths is Not Boring: rated 5★ on Apple Podcasts and 4.7★ on Spotify. Follow or subscribe to hear the story of a new great idea in maths every day.

·09:51

Platonic Solids for Kids: Why There Are Only Five Perfect Dice

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The story of the Platonic solids for kids: the five perfect shapes studied by Theaetetus and Plato in ancient Athens, and how Euclid proved around 300 BCE there can never be a sixth.

• What makes a solid perfect: the same faces and the same corners
• Why only five shapes work, worked out with triangles, squares and pentagons at a corner
• Why each one makes a fair die, and where they turn up in salt crystals and viruses
• Quiz questions to answer along the way

Maths is Not Boring: rated 5★ on Apple Podcasts and 4.7★ on Spotify. Follow or subscribe to hear the story of a new great idea in maths every day.

·11:40

What was the first times table?

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Have you ever wondered who invented times tables? Or why three times four is exactly the same as four times three? It's time to discover the quiet magic of multiplication! Imagine lining up your favorite wrapped sweets on a table in three rows of four. Now, walk around to the side of the table. Suddenly, it looks like four rows of three, but you haven't moved a single sweet! Mathematicians call this amazing swapping trick "commutativity," and it perfectly hides in plain sight in chocolate bars, egg cartons, and even the folding seats in a cinema! But how long have humans known this math secret? Grab your time machine because we are traveling all the way back to ancient China around 305 BCE! You won't find paper books here. Instead, ancient scholars wrote their math on delicate bamboo strips! In the 2010s, historians pieced together 21 muddy, waterlogged bamboo strips found in an ancient tomb to discover the oldest decimal times table in the entire world! Join Mira and Finn as they solve a 2,000-year-old puzzle, explore why this magic trick doesn't work for subtraction, and reveal the hidden math shapes in your kitchen!
·12:29

What is Zeno's paradox?

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Have you ever tried to walk across a room, but realized you have to go halfway first? And then half of that remaining distance? And half of that? Welcome to one of the most mind-bending puzzles in history! Over 2,500 years ago, an ancient Greek thinker named Zeno of Elea came up with a massive brain-teaser called Zeno's paradox. He imagined a race between the world's fastest hero, Achilles, and a slow, creeping tortoise. Because Achilles is so fast, he gives the tortoise a big head start. But every time Achilles reaches the spot where the tortoise just was, the tortoise has moved a tiny bit forward! If this keeps happening forever and ever in smaller and smaller gaps, how does Achilles ever catch up? Join Mira and Finn on Maths is Not Boring as they unravel this ancient mystery! You'll discover how clever mathematicians finally solved this endless puzzle using the magic of limits. Get ready to realize that every time you walk to the kitchen for a snack, you are literally conquering infinity!
·09:47

What is the Collatz conjecture?

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Have you ever heard of a math puzzle that acts like a wild weather storm? In 1937, a mathematician named Lothar Collatz invented a simple number machine with just two rules: if a number is even, cut it in half. If it is odd, multiply it by three and add one! Sounds easy, right? But what happens next is pure magic! Instead of acting normally, the numbers bounce wildly up and down like hailstones caught in a massive storm cloud! Some climb up into the thousands, while others drop low, but eventually, every single number gets trapped in the exact same endless loop: 4-2-1! Scientists have used massive supercomputers to check over 295 quintillion numbers, and they all get sucked into this strange mathematical whirlpool. But here is the ultimate mystery: nobody in the world has ever been able to prove why it works or if a giant number exists out there in infinity that can finally escape! Join Mira and Finn as they explore the mind-bending Collatz Conjecture, the ultimate unsolved puzzle hiding right behind simple math!
·10:05

What is base sixty?

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Have you ever looked at a ticking clock and wondered: why are there 60 seconds in a minute, and 60 minutes in an hour? Why not a nice, tidy 100? Get ready to travel back in time almost 4,000 years to ancient Iraq to uncover a time-telling mystery hiding in plain sight! Join Mira and Finn as they explore the mind-blowing math of the ancient Sumerians and Babylonians. Instead of counting by tens like we usually do, these ancient astronomers counted in Base Sixty! But why did they pick such a giant number? Because sixty is the friendliest number ever! It can be perfectly shared into halves, thirds, quarters, and so much more without anyone getting a weird half-slice. You'll learn how the Babylonians wrote all their numbers on soft clay tablets using just two simple shapes, and discover a secret way to count to sixty using just your finger joints! The next time you watch a microwave timer count down, you'll know you are using an ancient magic called Sexagesimal!
·10:47

How did they invent the metre?

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Have you ever wondered why a metre is exactly that long? Imagine trying to build a treehouse with your friends, but everyone's ruler is a completely different size! That is exactly what life was like in France in the 1780s. A foot or a pound changed from town to town, making building and trading a total chaotic mess! To fix this, two brilliant astronomers, Jean-Baptiste Delambre and Pierre Méchain, set out on a wild seven-year adventure in 1792. Their mission? To create a brand new measurement that belonged to everyone. They decided a "metre" would be exactly one ten-millionth of the distance from the North Pole to the Equator. But they didn't just do math at a desk—they climbed giant church towers and freezing mountain peaks with heavy brass telescopes! They even had to dodge angry mobs during the French Revolution because people thought they were spies! Join Mira and Finn as we uncover how these scientists dragged their telescopes across countries to create the world's very first metre. You will even discover the mind-bending secret of how we measure the metre today using the speed of light!
·09:17

What is an algorithm?

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Did you know the very first computer program was written in 1843, before computers or even lightbulbs were invented?! Join Mira and Finn on an amazing time-travel adventure back to Victorian London to discover the magic of algorithms! An algorithm is just a simple list of exact steps—like a recipe for baking a cake, but for math and logic! In this episode, we meet a brilliant mathematician named Ada Lovelace. When she saw the plans for a massive, steam-powered mechanical calculator called the Analytical Engine made entirely of brass cogs and gears, she saw the future! She wrote a famous set of instructions called Note G, which became the world's very first computer program. Ada even predicted that one day, machines like this could compose beautiful music! Find out how Ada's brilliant steps were meant to be fed into the machine using punched cardboard cards, and learn how her amazing ideas are still used today in every single app, map, and video game on your phone! Get ready to discover the magic hiding in the math!
·12:18

What is an even number?

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Have you ever noticed that numbers have a secret pattern hiding right in plain sight? It is the oldest pattern in mathematics: odd and even numbers! But what does that actually mean? Imagine lining up a giant pile of your favorite jelly beans. If you slide them across the table in pairs and every single sweet gets a buddy, that number is even! But if there is one lonely sweet left over? That makes it an odd number! This simple rule is so amazing that the ancient Greek Pythagoreans were obsessed with it 2,500 years ago! They believed numbers had personalities and that odd and even were the basic forces of the universe. Did you know that if you add two odd numbers together, the lonely sweets pair up, always making an even number? And what about the biggest trickster of all: zero? Believe it or not, zero is totally an even number! This ancient math secret isn't just floating in space; it decides things in your everyday life! It organizes the houses on your street and makes sure rolling a dice is perfectly fair. Let's uncover the amazing secrets of odd and even!
·10:16

What is a random walk?

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Have you ever wondered what happens if you wander around completely by chance? Imagine a tiny ant on a giant, endless flat grid. At every single corner, she rolls a four-sided dice to decide which way to go: left, right, forwards, or backwards! Do you think she will ever find her way back home? Amazingly, mathematician George Pólya proved that the answer is YES! Given enough time, she is mathematically guaranteed to step on her exact starting spot again! But what if she was a bird flying up and down in the sky? The rules completely change! In 3D space, a random wanderer only has a one-in-three chance of getting home, and will probably get lost forever! Join Mira and Finn as they explore the mind-bending mystery of Random Walks! We’ll travel back in time to discover how jiggling flower pollen amazed a botanist, and how the famous Albert Einstein figured out that invisible water molecules act like wild bumper cars! You’ll never look at a spreading drop of blue ink or a flying bird the exact same way again!
·11:30

What is estimation?

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Have you ever tried to guess how many sweets are in a giant glass jar? It is super tricky! Usually, if you ask just one person, their guess is way off. But what if you asked hundreds of people and put all their wrong guesses together? Could they magically find the exact right answer? Join Mira and Finn on a time-traveling trip back to a bustling country fair in Plymouth, England, in the year 1906! Right in the middle of the fair was a massive, heavy ox. A curious scientist named Francis Galton watched as 787 people paid a tiny coin to guess the giant animal's weight. Some guesses were way too high, and some were way too low. But when Galton lined up every single piece of cardboard and found the exact middle guess, something unbelievable happened! The crowd’s middle guess was 1,207 pounds, missing the real weight by less than one percent! Discover the amazing mathematical magic of estimation, learn what a "median" is, and find out why the "wisdom of the crowd" means that we are always smarter when we work together! You will be a master at guessing games!
·10:21

What is a Reuleaux polygon?

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Have you ever noticed that manhole covers on the street are almost always round? It turns out, this isn't just a random design choice—it is a life-saving piece of maths! If a manhole cover were square, it could accidentally tilt and slip diagonally right down the hole, crashing into the dark sewer below! But a circle is a special shape with "constant width." That means no matter which way you turn it, measure it, or tip it, it is exactly the same distance across. It can never fall in! But hold onto your hats, because circles aren't the only shapes with this math magic. In the 1870s, a German engineer named Franz Reuleaux discovered weird, bulging, curved-sided shapes that also have constant width! Even though they have corners, they can roll completely flat! Join Mira and Finn as they uncover the incredible secrets of Reuleaux polygons. You will even learn how the bumpy, seven-sided British fifty pence coin tricks vending machines into thinking it is perfectly round! Get ready to look at the streets and your piggy bank in a totally new way!
·10:13

How did Julius Caesar write secret messages?

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Imagine you are a Roman general holding a piece of parchment, but all the words are a completely jumbled mess! Did the messenger drop it in a puddle? No! You are holding a top-secret message locked by Julius Caesar himself! Join Mira and Finn as we travel back two thousand years to Ancient Rome to uncover the amazing mathematical secret behind the famous Caesar shift. Discover how sliding the alphabet over by just three letters created a giant game of hide-and-seek between clever code-makers and code-breakers! We will find out how Caesar's great-nephew Augustus used his own sneaky cipher, and how this brilliant ancient trick started a race that lasted all the way to Alan Turing and the brilliant code-breakers at Bletchley Park during the Second World War. But the race isn't over yet! Did you know you use super-powered secret ciphers every single day? Find out how the exact same idea protects the text messages and video calls you make right now! Get ready to crack the code and discover the incredible math hiding right inside your pocket!
·10:51

What are coordinates?

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Have you ever played a game of Battleships, looked at a secret pirate treasure map, or watched a little red pin drop on a smartphone map? If so, you have used coordinates! But what exactly are they, and who invented this amazing invisible grid? Join Mira and Finn as they uncover the magic of the Cartesian grid! Travel all the way back to the year 1637 to meet René Descartes, a brilliant French thinker who loved sleeping in until noon. Legend has it that while he was staring at his ceiling from his cozy bed, he watched a tiny fly crawl across the roof and wondered how to describe exactly where it was. His big idea? You only need two numbers—how far across, and how far up—to pin down any spot on a flat page! Discover how this one simple idea built a magical bridge between shapes and numbers, and how another clever thinker named Pierre de Fermat had the exact same idea at the same time. Tune in to find out how an invisible web of lines secretly runs our modern world!
·12:52

What is six degrees of separation?

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Have you ever wondered how you might be connected to a baker in Peru or a fisherman in Japan? It sounds like magic, but it is actually math! In 1929, a Hungarian writer named Frigyes Karinthy came up with a wild idea: that every single person on Earth is connected by just a few invisible handshakes! Decades later in 1967, an American scientist named Stanley Milgram decided to test this theory in real life. He asked people in the middle of the United States to mail folders to a specific stockbroker in Boston, but they could only pass the mail to someone they knew personally! Believe it or not, the folders that successfully made it there took an average of only five or six steps! This incredible pattern is called a Small-World Network, and it explains how funny jokes, catchy songs, and even the common cold spread so incredibly fast. Join Mira and Finn on this mind-expanding episode as they uncover the hidden web that links the entire world together! You will never look at a crowd of strangers the same way again!
·11:58

What is a percentage?

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Have you ever noticed that weird little symbol on your phone's battery or your weather app? The percent sign (%) is everywhere, but what does it actually mean? Join Mira and Finn as they uncover the invisible mathematical superpower hiding in plain sight! You'll travel back over two thousand years to Ancient Rome, where Emperor Augustus created a special rule called the "centesima" to collect exactly one out of every hundred items sold at massive, chaotic auctions. Discover how thinking "out of a hundred" is an amazing trick that lets you compare absolutely anything in the entire universe on the exact same scale—whether it's half of a tiny peppermint sweet or half of a gigantic football stadium! Plus, find out the hilarious true story of how hurrying Italian merchants scribbling down the words "per cento" squashed their messy handwriting into the famous percent symbol we use today. Is it really mathematically impossible to give 110 percent effort on the sports field? Tune in to find out!
·11:19

What are magic squares?

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Have you ever heard of a math puzzle so mysterious that famous artists hid it in paintings and giant turtles carried it on their backs? Welcome to the incredible world of magic squares! These aren't just ordinary boxes of numbers. In a magic square, every single row, column, and diagonal adds up to the exact same secret number! Join Mira and Finn as they travel back in time to ancient China, where a legendary giant turtle climbed out of a rushing river with a magical pattern of dots on its shell. Then, journey to Germany in the year 1514 to uncover a secret code hidden inside a stunning masterpiece by the artist Albrecht Dürer—he even snuck the year he made it into the math! You will also find out which famous American inventor (who famously experimented with kites and lightning!) used to doodle massive magic grids just because he was bored in long meetings. If you love Sudoku, secret codes, or amazing patterns, you will not want to miss this mind-bending puzzle adventure!