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.
Why Hacker News points people here: Recommended as an enjoyable, accessible talk for building intuition about higher dimensions.
“I love Matt Parker's take on the fourth dimension”HN comment, 2018
“I love Matt Parker's take on the fourth dimension”
Enjoyable hour-long general audience talk on the fourth dimension
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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)
Strongly recommendsProllyInfamousJul 2022
“The entire video in mesmerizing”
Visualizing a 4D cube plus mathematical party tricks
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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.
RecommendsjameshartJun 2017
“the whole thing is worth watching”
Matt Parker lecture on how extra dimensions let you go around things
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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)