21 Mar 2026
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© 2026 Heather Cox Richardson. All Rights Reserved.
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21 Mar 2026
Video Description
Nobody expected the woodland to survive the way it did. Not the researchers, not the land managers, and certainly not the four animals that arrived in Kent in twenty twenty-two and immediately started tearing it apart.
European bison have been absent from Britain for six thousand years. What happened when they came back was not what conservation usually looks like — and the data from the first year changed how ecologists are thinking about woodland restoration across the entire country.
This channel explores the hidden engineering systems that keep the modern world running — from water and energy to megaprojects, infrastructure, and advanced industrial technology.
Each video breaks down how these systems actually work, why they were built, and what happens when they fail. The focus is on real-world engineering, geopolitics, resource scarcity, and the technology shaping the future of civilization.
If you’re interested in infrastructure, civil engineering, water systems, energy networks, and large-scale problem solving, you’re in the right place.
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Tibees tagged products below. Learn more
A Guide to Making Friends in the Fourth Dimension Paperback
£18.00
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A look at Fibonacci’s original manuscript from 1202; the Liber Abaci.
My book, A Guide to Making Friends in the Fourth Dimension: https://tibees.com/
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Finding Fibonacci by Keith Devlin: https://amzn.to/3N70kyM
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Editing by Noor Hanania
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22 Mar 2026
Escher’s Print Gallery, and the tour of complex analysis it invites.
Check out our virtual career fair: 3b1b.co/talent
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Home page: https://www.3blue1brown.com
Original paper by de Smit and Lenstra:
https://pub.math.leidenuniv.nl/~smitb…
Co-written by Paul Dancstep, who handled many of the animations in the art section, including the delightful mesh warp scene.
Aaron Gostein helped with the manim animations in the section introducing complex functions.
Artwork provided by Talia Gerhson, Mitchell Zemil, and Anna Fedczuk.
Music by Vincent Rubinetti
Timestamps:
0:00 – The print gallery
13:04 – Conformal maps from complex analysis
21:41 – The complex exponential
25:56 – The complex logarithm
32:32 – 3b1b Talent
33:14 – Constructing the key function
40:16 – The deeper math behind Escher
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These animations are largely made using a custom Python library, manim. See the FAQ comments here:
https://3b1b.co/faq#manim
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3blue1brown is a channel about animating math, in all senses of the word animate. If you’re reading the bottom of a video description, I’m guessing you’re more interested than the average viewer in lessons here. It would mean a lot to me if you chose to stay up to date on new ones, either by subscribing here on YouTube or otherwise following on whichever platform below you check most regularly.
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msamba 