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Mathematician Kelsey Houston-Edwards offers ambitious content for viewers that are eager to attain a greater understanding of the world around them. Math is pervasive - a robust yet precise language - and with each episode you’ll begin to see the math that underpins everything in this puzzling, yet fascinating, universe.

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Full Episodes
Season
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Episode
9:12
Infinite Series

The Assassin Puzzle

Can you save the target from his assassin in a square room with bouncy walls?
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Episode
9:32
Infinite Series

Instant Insanity Puzzle

Can you stack four colored cubes so that each color only shows once on each side?
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Episode
10:31
Infinite Series

Defining Infinity

Set theory is the foundation of all of mathematics. How does it handle infinity?
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Episode
9:36
Infinite Series

Unraveling DNA with Rational Tangles

When you think about math, what do you think of knots? Probably... knot.
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Episode
13:02
Infinite Series

How Big are All Infinities Combined? (Cantor's Paradox)

Infinities come in different sizes. So what's the right way to describe the sum?
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Episode
10:21
Infinite Series

The Geometry of SET

In SET, what is the maximum number of cards you can deal that might not contain a SET?
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Episode
10:50
Infinite Series

What was Fermat’s “Marvelous" Proof?

If Fermat had a little more room in his margin, what proof would he have written there?
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Episode
10:07
Infinite Series

What are Numbers Made of?

In the physical world, objects are made of simpler parts. What are numbers made of?
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Episode
9:35
Infinite Series

What Does It Mean to Be a Number? (The Peano Axioms)

Could you explain numbers to someone without using the notion of a number?
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Episode
7:17
Infinite Series

Telling Time on a Torus

What shape do you most associate with a standard analog clock? Circle or... torus?
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Science & Nature
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Preview
0:30
Extra Life: A Short History of Living Longer

Preview

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Clip
4:38
Greta Thunberg: A Year to Change the World

Direct Air Capture

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Clip
4:23
Greta Thunberg: A Year to Change the World

COVID-19's Impact on Climate

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Clip
3:55
Greta Thunberg: A Year to Change the World

Reindeer Face Starvation

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Clip
4:25
Greta Thunberg: A Year to Change the World

Athabasca Glacier