Four Dimensional Maths: Things to See and Hear in the Fourth Dimension - with Matt Parker
Why Hacker News recommends it
Recommended as an enjoyable, accessible talk for building intuition about higher dimensions.
What it is
Matt Parker gives a hands-on Royal Institution talk on how four-dimensional shapes appear in a 3D world, with props like straw frames, Mobius strips and a knitted hat. It is a playful general-audience tour of the fourth dimension.
Recommended by 3 HN commenters across 3 different months, 2017 to 2022.
What Hacker News said
Strong rec IngoBlechschmid · 2018-03 · on “Counterintuitive Properties of High Dimensional Space”
I love Matt Parker's take on the fourth dimension: see for instance this one-hour long but very enjoyable talk for general audiences at the Royal Institution: [this video] (Things to See and Hear in the Fourth Dimension) If you know German, then you might like this talk as well: [LINK] (The curious world of four-dimensional geometry)
Strong rec ProllyInfamous · 2022-07 · on “Strange new phase of matter acts like it has two time dimensions”
For anybody whom might be interested in "what a 4D cube might look like..." [this video] The entire video in mesmerizing -- one of the coolest party tricks I've learned is the double-twisted morbius strip dissection.
Recommends jameshart · 2017-06 · on “4D Toys: a box of four-dimensional toys”
I found this Matt Parker lecture provided some good tools for getting your head around the fact that extra dimensions really do let you go around things, not through: [this video] (the whole thing is worth watching, but the bit about higher dimensional visualization starts there)