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Unraveling DNA with Rational Tangles

Unraveling DNA with Rational Tangles

Season 2 Episode 16
9:36
Defining Infinity

Defining Infinity

Season 2 Episode 17
10:31
Instant Insanity Puzzle

Instant Insanity Puzzle

Season 2 Episode 18
9:32
The Assassin Puzzle

The Assassin Puzzle

Season 2 Episode 19
9:12
Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
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Infinite Series

The Geometry of SET

Season 2 Episode 14

In the card game SET, what is the maximum number of cards you can deal that might not contain a SET?

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Season
The Assassin Puzzle
9:12
Can you save the target from his assassin in a square room with bouncy walls?
Instant Insanity Puzzle
9:32
Can you stack four colored cubes so that each color only shows once on each side?
Defining Infinity
10:31
Set theory is the foundation of all of mathematics. How does it handle infinity?
Unraveling DNA with Rational Tangles
9:36
When you think about math, what do you think of knots? Probably... knot.
How Big are All Infinities Combined? (Cantor's Paradox)
13:02
Infinities come in different sizes. So what's the right way to describe the sum?
What was Fermat’s “Marvelous" Proof?
10:50
If Fermat had a little more room in his margin, what proof would he have written there?
What are Numbers Made of?
10:07
In the physical world, objects are made of simpler parts. What are numbers made of?
What Does It Mean to Be a Number? (The Peano Axioms)
9:35
Could you explain numbers to someone without using the notion of a number?
Telling Time on a Torus
7:17
What shape do you most associate with a standard analog clock? Circle or... torus?
How to Divide by "Zero"
8:01
What happens when you divide things that aren’t numbers?
Beyond the Golden Ratio
8:57
You know the Golden Ratio, but what is the Silver Ratio?
Proving Brouwer's Fixed Point Theorem
8:16
The proof for Brouwer's Fixed Point Theorem uses a bridge between geometry and algebra.
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