Recreational & Visual Math Videos Hacker News Recommends — Page 3

explainer#3199

Sloane's Gap - Numberphile

Numberphile

“Very good video on Sloane's Gap, for the impatient”

2 HN recommenders · 2013–2019

explainer#3219

Do these scatter plots reveal fraudulent vote-switching in Michigan?

Stand-up Maths

“here's a video that debunks many of his claims”

4 HN recommenders · 2020–2021

explainer#3256

How We Should Vote (Range Voting)

Undefined Behavior

“The following video covers 'Range Voting' in relation to Arrow's Theorem”

3 HN recommenders · 2017–2019

explainer#3274

Why do Biden's votes not follow Benford's Law?

Stand-up Maths

“Matt Parker did a good video with lots of visuals to explain why Benford's Law works in general, but why it cannot always be simply applied to election results.”

2 HN recommenders · 2020–2024

explainer#3365

Strange Spheres in Higher Dimensions - Numberphile

Numberphile

“Numberphile[2] has a video on higher dimensional spheres which talks about this weirdness.”

2 HN recommenders · 2020–2025

lecture#3436

Clutching at Random Straws, Matt Parker | LMS Popular Lectures 2010

London Mathematical Society

“gave a very informative and entertaining lecture in 2010”

2 HN recommenders · 2017–2024

explainer#3446

Backpropagation calculus | Deep Learning Chapter 4

3Blue1Brown

“3Blue1Brown which explains math in very accessible way”

3 HN recommenders · 2017–2024

explainer#3453

Pentagons Are Terrible at One Thing

CGP Grey

“he manages to cover a lot of ground”

2 HN recommenders · 2020–2022

explainer#3457

The Josephus Problem - Numberphile

Numberphile

“There is an excellent numberphile video on Josephus problem”

2 HN recommenders · 2018–2022

explainer#3470

Solving Wordle using information theory

3Blue1Brown

“still worth a watch.”

2 HN recommenders · 2022–2024

explainer#3548

An astonishing old calculator - Numberphile

Numberphile

“There is also a fantastic video where Cliff Stoll describes the Friden EC-132 calculator and shows off its acoustic delay line here”

1 HN recommenders · 2017–2023

explainer#3549

5040 and other Anti-Prime Numbers - Numberphile

Numberphile

“Here is a GREAT video on these 'anti-prime' numbers”

1 HN recommenders · 2018–2024

interview#3566

Klein Bottles - Numberphile

Numberphile

“This guys passion for Mobius Strips is infectious.”

1 HN recommenders · 2015–2022

explainer#3602

Exponential growth and epidemics

3Blue1Brown

“Here is a neat video that helps put things in perspective for most any viewer.”

10 HN recommenders · 2020

explainer#3605

Some light quantum mechanics (with minutephysics)

3Blue1Brown

“I found these two videos very helpful in understanding the quantum nature of light”

2 HN recommenders · 2020–2022

explainer#3619

How An Infinite Hotel Ran Out Of Room

Veritasium

1 HN recommenders · 2021–2022

lecture#3649

What is Euler's formula actually saying? | Ep. 4 Lockdown live math

3Blue1Brown

“I was finally able to understand the role of complex numbers in the Fourier Transform.”

1 HN recommenders · 2020–2023

explainer#3667

The Trinity Hall Prime - Numberphile

Numberphile

“I love his video explaining how someone found a prime that looks like the Arms of Trinity Hall [1].”

1 HN recommenders · 2017–2020

explainer#3682

Group theory, abstraction, and the 196,883-dimensional monster

3Blue1Brown

“you should probably see this Matt Parker video about excel being used in ways it shouldn't maybe?”

1 HN recommenders · 2021–2023

demo#3753

Deepest Mandelbrot Set Zoom Animation ever - a New Record! 10^275 (2.1E275 or 2^915)

Orson Wang

1 HN recommenders · 2016–2025

explainer#3834

Why is there no equation for the perimeter of an ellipse‽

Stand-up Maths

“the info on calculating the actual value starts at 14 minutes (it's an infinite series).”

1 HN recommenders · 2020–2023

explainer#3844

Darts in Higher Dimensions (with 3blue1brown) - Numberphile

Numberphile

“There's a nice video about this from Numberphile and 3blue1brown”

1 HN recommenders · 2021–2023

explainer#3847

Why do people keep getting this wrong‽

Stand-up Maths

“Here's a great explanation of what's probably happening”

1 HN recommenders · 2020–2025

explainer#3885

The Unbeatable Game from the 60s: Dr NIM

Stand-up Maths

“Here's a video on the subject from Matt Parker @ Standup Maths.”

1 HN recommenders · 2016–2023

explainer#3938

How big is a billion? - Numberphile

Numberphile

“explains it all quite nicely.”

1 HN recommenders · 2014–2024

interview#3983

Does John Conway hate his Game of Life?

Numberphile

“Conway has said GOL is not something he is particularly pleased got as famous as it did.”

1 HN recommenders · 2015–2024

explainer#4074

The Strange Math That Predicts (Almost) Anything

Veritasium

“this excellent Veritasium video about Markov and his chains”

1 HN recommenders · 2025

documentary#4160

Why the World’s Best Mathematicians Are Hoarding Chalk

Great Big Story

“Pretty amusing they were stockpiling it and some were chalk dealers on the side.”

1 HN recommenders · 2019–2023

explainer#4190

What is PLUS times PLUS?

2swap

“I also liked the one on lambda calculus.”

1 HN recommenders · 2025–2026

explainer#4229

Base 12 - Numberphile

Numberphile

“I suggest anyone reading this to also watch this video”

1 HN recommenders · 2013–2020

explainer#4382

Someone improved my code by 40,832,277,770%

Stand-up Maths

“Quick google yields very good examples in huge improvements on a single algorithm level”

1 HN recommenders · 2022–2023

explainer#4499

Calculating a Car Crash - Numberphile

Numberphile

“There's also a great video I stumbled across yesterday”

1 HN recommenders · 2018–2026

explainer#4504

BBC - The Code - The Wisdom of the Crowd

timb6

“start at 2:00 if TLDW”

1 HN recommenders · 2013–2016

explainer#4572

Bertrand's Paradox (with 3blue1brown) - Numberphile

Numberphile

“there's a Numberphile / 3B1B video about the pitfalls of plotting randomness in a circle”

1 HN recommenders · 2022–2024

explainer#4606

Why do YouTube views freeze at 301?

Numberphile

“here's a good video on why it happens”

1 HN recommenders · 2012–2025

explainer#4640

Epicycles, complex Fourier series and Homer Simpson's orbit

Mathologer

“It's similar to Mathologer's "Epicycles, complex Fourier series and Homer Simpson's orbit"”

1 HN recommenders · 2022–2023

comedy#4703

Matematikrevyen 2011: Banach-Tarski

Matematikrevyen

“i feel obliged to point everyone at this Banach-Tarski related video”

1 HN recommenders · 2012–2024

explainer#4737

I built a QR code with my bare hands to see how it works

Veritasium

“Derek Muller just did an interesting take on QR codes and their history”

1 HN recommenders · 2024–2025

explainer#4747

The Uncracked Problem with 33 - Numberphile

Numberphile

“Or watch videos about it”

1 HN recommenders · 2019–2023