3Blue1Brown
Sneaky Topology | The Borsuk-Ulam theorem and stolen necklaces: Topology - Part 3 of 3
Solving a discrete math puzzle, namely the stolen necklace problem, using topology, namely the Borsuk Ulam theorem
3Blue1Brown
Who (else) cares about topology? Stolen necklaces and Borsuk-Ulam: Topology - Part 2 of 3
How a famous theorem in topology, the Borsuk-Ulam theorem, can be used to solve a counting puzzle that seems completely distinct from topology.
3Blue1Brown
Who (else) cares about topology? Stolen necklaces and Borsuk-Ulam
How a famous theorem in topology, the Borsuk-Ulam theorem, can be used to solve a counting puzzle that seems completely distinct from topology.
3Blue1Brown
The hardest problem on the hardest test
A geometry/probability question on the Putnam, a famously hard test, about a random tetrahedron in a sphere. This offers an opportunity not just for a lesson about the problem, but about problem-solving tactics in general.
3Blue1Brown
The hardest problem on the hardest test
A geometry/probability question on the Putnam, a famously hard test, about a random tetrahedron in a sphere. This offers an opportunity not just for a lesson about the problem, but about problem-solving tactics in general.
3Blue1Brown
Who (else) cares about topology? Stolen necklaces and Borsuk-Ulam
How a famous theorem in topology, the Borsuk-Ulam theorem, can be used to solve a counting puzzle that seems completely distinct from topology.
PBS
White Holes
Lurking in the depths of the mathematics of Einstein's general relativity is an object even stranger than the mysterious black hole. In fact it's the black hole's mirror twin, the white hole. Some even think that these could be the...
3Blue1Brown
Sneaky Topology (The Borsuk-Ulam theorem)
Solving a discrete math puzzle, namely the stolen necklace problem, using topology, namely the Borsuk Ulam theorem
3Blue1Brown
Sneaky Topology | The Borsuk-Ulam theorem and stolen necklaces
Solving a discrete math puzzle, namely the stolen necklace problem, using topology, namely the Borsuk Ulam theorem
Crash Course
Geometric Optics: Crash Course Physics
LIGHT! Let's talk about it today. Sunlight, moonlight, torchlight, and flashlight. They all come from different places, but they’re the very same thing: light! It’s what makes it possible for us to see the world around us, so it’s worth...
Curated Video
Simple Seated Yoga for a More Toned Core & More
New ReviewChair yoga is a great way to get started on your fitness journey, perfect for beginners!! Enjoy this accessible and effective beginner 3 minute routine to strengthen your core and more!
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How to Join Motifs or Make Seams in Crocheting
Howcast - Learn how to join motifs or make seams from Lion Brand Yarn's Andrea Lemire in this Howcast video.
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How to Play the Double Drag Tap on the Drums
Howcast - Learn how to play the double-drag tap from drum teacher Jason Gianni in this Howcast drum video.
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How to Play the Single Drag Tap on the Drums
Howcast - Learn how to play the single-drag tap from drum teacher Jason Gianni in this Howcast drum video.
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How to Play the Triple Paradiddle on the Drums
Howcast - Learn how to play the triple paradiddle from drum teacher Jason Gianni in this Howcast drum video.
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How to Do a Windshield Wiper Ab Workout
Howcast - Learn how to do a windshield wiper from certified personal trainer James Rizzo in this home ab workout video from Howcast.
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How to Do French Braid Pigtails & Heidi Braids
Howcast - Learn how to do French braid pigtails as well as how to do Heidi braids with the step-by-step instructions in this hair tutorial from Howcast.
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What Is Peyronie's Disease?
Howcast - Learn about Peyronie's Disease -- scar tissue inside the penis that causes curved, painful erections -- in this Howcast video.
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How to Swim Laps
Howcast - Learn how to swim laps in this online swimming lesson from Howcast.
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How to Gather Fabric with a Sewing Machine
Howcast - Learn how to gather fabric with a sewing machine from designer Jennifer Wiese in this Howcast tutorial.
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How to Improve Your Court Positioning
Howcast - Let tennis pros Joe Perez and Kirk Moritz teach you how to improve your court positioning in this Howcast video.
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How to Throw a Dribble Pass
Howcast - Learn how to throw a dribble pass from former top-ranking college basketball player Jason Curry in this Howcast video.
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How to Do a Tip-In
Howcast - Learn how to do a tip-in from former top-ranking college basketball player Jason Curry in this Howcast video.
Curated Video
How to Foam Roll Your Wrist Flexors & Extensors
Howcast - Learn how to foam roll your wrist flexors and extensors in this Howcast video featuring certified NYC trainer Amanda Edell.