Geometry may have its origins thousands of years ago in ancient land surveying, but it has also had a surprising impact on modern physics. In the latest episode of The Joy of Why, Yang-Hui He explores geometry's evolution and its future potential through AI.
Aug 2025
How Can Math Protect Our Data?
<p>Every time data travels — from smartphones to the cloud, or across the vacuum of space — it relies on a silent but vigilant guardian in the form of error-correcting codes. These codes, baked into nearly every digital system, are designed to detect and repair any errors that no ... Show More
39m 40s
Oct 2023
A Mathematician Asks ‘Is Math Real?’
<p>When math is based on abstract concepts, how do we know it’s correct? Dr. Eugenia Cheng takes on that question in a new book.</p><p> </p><p>The concept of math has been around for a long time, developing independently in many different cultures. In 1650 BC, the Egyptians were ... Show More
33m 8s
Jul 2019
41: Reality Is More Than Complex (Group Theory and Physics)
Children who are being taught mathematics often balk at the idea of negative numbers, thinking them to be fictional entities, and often only learn later that they are useful for expressing opposite extremes of things, such as considering a debt an amount of money with a negative ... Show More
54m 50s
Mar 2024
268 | Matt Strassler on Relativity, Fields, and the Language of Reality
In the 1860s, James Clerk Maxwell argued that light was a wave of electric and magnetic fields. But it took over four decades for physicists to put together the theory of special relativity, which correctly describes the symmetries underlying Maxwell's theory. The delay came in p ... Show More
1h 30m
Sep 2019
The Universe Speaks in Numbers: Lenny Susskind interviewed by Graham Farmelo
'Black holes have become one of the liveliest areas of theoretical research. By thinking about these cosmic objects, using quantum theory and relativity, theorists are clarifying our understanding of information, gravity and the other fundamental forces of nature. Stanford Univer ... Show More
21m 30s