# Topic:math

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A Binary Marble Adding Machine by Matthias Wandel of Woodgears.ca. “When the rocker is set to the left, that represents a zero. When it’s rocked to the right, it’s set to on...

## Calculating Pi (π) with Darts

Can you calculate Pi (π) by throwing darts at a square and circle target as randomly as possible? Physics Girl's Dianna Cowern and Veritasium's Derek Muller attempt the challenge, and when "randomly" doesn't happen, t...

## Can you solve the airplane riddle?

Professor Fukanō, the famous scientist, has embarked on a new challenge – piloting around the world in a plane of his own design. There’s just one problem: there's not enough fuel to complete the journey. Luckily, the...

## Can you solve the counterfeit coin riddle?

You're currently locked in the dungeon by orders of the king, but as the realm’s greatest mathematician, you've been given a chance to free yourself: If you can identify a counterfeit coin, one fake coin in a group of...

## Can you solve the fish riddle?

As the cargo director on the maiden voyage of the S.S. Buoyant, you’ve agreed to transport several tanks containing the last specimens of an endangered fish species to their new aquarium. Unfortunately, the boat is ba...

## Can you solve the frog riddle? – TED Ed

You’re stranded in a rainforest, and you’ve eaten a poisonous mushroom. To save your life, you need an antidote excreted by a certain species of frog. Unfortunately, only the female frog produces the antidote. The mal...

## Can you solve the Leonardo da Vinci riddle?

You’ve found Leonardo da Vinci’s secret vault, secured by a series of combination locks. Fortunately, your treasure map has three codes: 1210, 3211000, and… hmm. The last one appears to be missing. Can you figure out ...

## Can you solve the locker riddle? – TED Ed

File under factors, multiples, square numbers, prime numbers, and sequences: This classic mystery novel set up has a wonderful math puzzle twist: Your rich, eccentric uncle just passed away, and you and your 99 na...

## Can you solve the Mondrian squares riddle?

Dutch artist Piet Mondrian’s abstract, rectangular paintings inspired mathematicians to create a two-fold challenge. Can you solve the puzzle and get to the lowest score possible? Board game and puzzle designer and...

## Can you solve the penniless pilgrim riddle?

After months of travel, you’ve arrived at Duonia, home to the famous temple that’s the destination of your pilgrimage. The walk from the welcome center to the temple isn't a long one ... but there’s a problem. Can you...

## Can you solve the river crossing riddle? – TED Ed

How do three lions and three wildebeests, fleeing from a wildfire, cross over to the left bank of a crocodile-infested river to escape the flames? There's a raft! But there are a few rules that must be followed in ord...

## Can you solve the rogue AI riddle?

You're on a special mission to save the world from a hostile artificial intelligence called NIM. It's taken over computers all over the globe and you only have one opportunity to shut it down. NIM will also be working...

## Can you solve the stolen rubies riddle?

Townspeople are demanding that a corrupt merchant’s collection of 30 rubies be confiscated to reimburse the victims of his schemes. The king announces that the fine will be determined through a game of wits between th...

## Can you solve the temple riddle? – TED Ed

Your expedition finally stands at the heart of the ancient temple. But as you study the inscriptions in the darkness, two wisps of green smoke burst forth. The walls begin to shake. The giant sandglass begins flowing ...

## Can you solve the time travel riddle?

Your professor has accidentally stepped through a time portal in his physics lab. You’ve got just a minute to jump through before it closes and leaves him stranded in history. Your only way back is to grab enough colo...

## Can you solve the virus riddle?

Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working, you’re just closing up the lab when a sudden earthquake hits and breaks all the sampl...

## Can you solve the wizard standoff riddle?

You’ve been chosen as a champion to represent your wizarding house in a deadly duel against two rival magic schools. Your opponents are a powerful sorcerer who wields a wand that can turn people into fish, and a power...

## Charles and Ray Eames’ Powers of Ten (1977)

Powers of Ten, written and directed by Charles and Ray Eames, was first released in 1968 and later re-released in 1977. From Powersof10.com: Powers of Ten takes us on an adventure in magnitudes. Starting at a picn...

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