How Many Colors Do Maps Need? #shorts @Vsauce2

Uploaded June 2022 | Updated September 2026, 2 weeks ago

As borders twist and turn through geographic features and political realities, maps get complex quickly. But no matter how many bodies are being mapped, it's only necessary to use 4 different colors to make sure that no two that are touching share the same color. Given how intricate and complicated maps can be, how can we not need more than 4?!

#vsauce #education

Someone Makes This A Necklace (emirp) #shorts

The Dangerous Math Used To Predict Criminals

$2/3 Doesnt SEEM Like a Big Deal, But It Is #shorts Think about how people discovered fractions and what problem they were meant to solve. How do we take a thing and express its division into smaller equal parts? A lot of little somethings add up to 1... until 2/3 came along. Using a numerator that isnt 1 doesnt sound like much, but it was a massive conceptual leap for humanity. #shorts$

$The 24 Card Math Game #shorts The 24 game that originated in China is a fast-paced 2-player game of number manipulatiin. Your goal is to take the integers of the 4 cards on the table and turn them into the number 24, and any mathematical operation is fair game. Add, subtract, divide, multiply, fractions, exponents, factorials... anything goes, as long as the end result is 24 and your math checks out. The rules are simple: aces are worth 1, face cards are worth 10, and the other numbers are themselves. Each player flips 2 cards and the first to invent a combination yielding 24 puts all 4 cards at the bottom of their stack. Keep going until one player has all the cards, and then PLAY AGAIN. #shorts$