RTTY DEMO 012710.wmv
In briefA short demonstration of radioteletype (RTTY), a digital communication mode used in amateur radio, showing what the signal sounds like.
Math & Theory
Page 15 of 15
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On Mathematical Maturity (1) Thomas Garrity
In briefThomas Garrity discusses mathematical maturity, a concept mathematicians use for professional development, and how it can inform teaching, mentoring and careers. It was given at the IAS/PCMI Park City Mathematics Institute.
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Why Democracy Is Mathematically Impossible
In briefVeritasium explains why no voting system can be perfectly fair, drawing on Arrow's theorem and the work of Eric Maskin. It looks at problems with systems like first-past-the-post and ranked-choice voting.
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epic conway's game of life
In briefAn animated, musical visualization of Conway's Game of Life showing patterns made in the Golly program.
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[Equation] - Aphex Twin Spectrogram
In briefA spectrogram analysis of Aphex Twin's track commonly called [Equation] from Windowlicker, rendered from a lossless version. At about 5:30 the spectrogram reveals an image of Richard D. James's face.
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Gerald Jay Sussman: The Role of Programming (Dan Friedman's 60th Birthday)
In briefGerald Jay Sussman speaks at Dan Friedman's 60th birthday celebration about how programming helps formulate and clarify ideas. He argues that ambiguous mathematical notation hinders understanding.
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Double Pendulums are Chaoticn't
In briefA short explainer from 2swap on the chaotic behavior of double pendulums. It examines how predictable the system is for some starting conditions and whether closed-form solutions exist.
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Gauge Theory and Inflation: Enlarging the Wu-Yang Dictionary
In briefA talk by Eric Weinstein on gauge theory and its possible application to economics and inflation. It proposes extending the Wu-Yang dictionary into a geometric tool beyond physics.
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Barack Obama - Computer Science Question
In briefA one-minute clip from Barack Obama's 2008 Google visit in which Eric Schmidt asks him the most efficient way to sort a million 32-bit integers. Obama answers that bubble sort would be the wrong choice.
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The Shortest-Splitline Algorithm: a Gerrymandering Solution [Bonus Video]
In briefA short CGP Grey bonus video explaining the shortest-splitline algorithm, which draws electoral districts by repeatedly splitting a state along its shortest dividing line while balancing population. It is offered as a neutral, algorithmic fix for gerrymandering.
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How to walk through walls using the 4th Dimension [Miegakure: a 4D game]
In briefA short explainer showing what walking through walls would look like with movement in a fourth spatial dimension, using the 4D puzzle game Miegakure.
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Non-euclidean virtual reality
In briefHenry Segerman and collaborators demonstrate virtual reality experiences in non-Euclidean spaces, including hyperbolic and mixed hyperbolic-Euclidean geometry. The browser-based demos let viewers move through these spaces and show how strange the geometry feels from inside.
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An Observation on Generalization
In briefIlya Sutskever gives a Simons Institute talk on why neural networks generalize, framing learning as finding short descriptions, like compression. It was part of the Large Language Models and Transformers program.
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Will We Ever Run Out of New Music?
In briefVsauce asks whether music will ever run out of new melodies. It counts the possible note combinations and discusses how common chord progressions and remixing affect originality.
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Quantum Computing and Bitcoin (Vitalik Buterin, November 2013)
In briefA 2013 lecture in which Vitalik Buterin explains what quantum computers are and what they can and cannot do. He then discusses what they could mean for Bitcoin's cryptography.
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LSV Breaks MTGO
In briefPro Magic player Luis Scott-Vargas triggers a mandatory-action infinite loop on Magic Online, and the game stalls in a non-terminating state.
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Marble adding machine
In briefMatthias Wandel shows his wooden machine that adds binary numbers using marbles. It demonstrates computation with purely mechanical logic.
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Hitler Learns Topology
In briefA parody in the Downfall meme format where Hitler rages over confusing topology terminology about open, closed and clopen sets. It was made for a math summer program.
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Adobe MAX 2011 - Photoshop Image Deblurring sneak
In briefA six-minute clip of Adobe's MAX 2011 sneak peek showing a Photoshop prototype that removes motion blur from photos. The audience reacts with astonishment as blurry images become legible.
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The Princess Bride (5/12) Movie CLIP - The Battle of Wits (1987) HD
In briefThe poison goblet scene from The Princess Bride, in which Westley tricks Vizzini in a battle of wits. It is a famous example of nested reasoning.
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Outside In
In briefA 21-minute animation showing how a sphere can be turned inside out without creases or tears, known as sphere eversion.
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Why We Should NOT Look For Aliens - The Dark Forest
In briefKurzgesagt animated explainer on the Dark Forest answer to the Fermi Paradox. It argues that if advanced civilizations exist, staying silent may be the safest strategy because revealing yourself invites a first strike.
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Google and NASA's Quantum Artificial Intelligence Lab
In briefA short Google video introducing the Quantum AI Lab, a partnership between Google, NASA, USRA and a 512-qubit D-Wave Two quantum computer. It covers the lab's early goals and some potential applications of quantum computing.
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Do I look like I know what a JPEG is?
In briefA King of the Hill clip in which Hank-style character rants about saving images as PNG instead of JPEG after exporting from Windows Paint.
