variable pitch

A short MIT Aerospace Controls Lab demo from 2011 of a variable pitch quadrotor flying.

Adam Neely explains what perfect (absolute) pitch is, how it differs from relative and quasi-absolute pitch, and why he would not want it. He covers its drawbacks, including drift with age.

Rick Beato argues that adults cannot develop true perfect pitch, which he ties to critical-period brain plasticity and language acquisition. He says it can only be developed in young children, and discusses the research behind this.

Rick Beato discusses a theory of why some children develop perfect pitch, based on early exposure to music. He draws on his experience with his own children.

Rick Beato tests his 8-year-old son Dylan's perfect pitch on single notes, note pairs and complex polychords.

The preface to Herb Gross's MIT OpenCourseWare 'Calculus Revisited: Single Variable Calculus', an older black-and-white lecture series. It introduces his approach to teaching calculus from the basics.

The Kodak Carousel pitch scene from the Mad Men season finale, in which Don Draper sells nostalgia through a slide projector. It runs about three minutes.

12tone tells the story of pitch inflation and how concert A came to be standardized at 440 Hz, including attempts at legal standards. It is a short music history explainer.

Ali G pitches his ice cream glove idea to marketing professionals and even talks to Donald Trump. It is a comedy sketch of a clueless entrepreneur seeking investment.

Neil and Laura Westwood pitch their Magic Whiteboard, reusable static-cling whiteboard sheets, to the investors on the BBC's Dragons' Den and win 100,000 pounds of investment.

The 1969 pitch film in which Saul Bass presents the Bell System logo redesign to AT&T, part of the largest corporate re-identity program in U.S. history.

Adam Neely's Ableton Loop 2017 talk links rhythm, pitch and synaesthesia. He shows that polyrhythms sped up become chords, so tempo and pitch are related by ratios.

A Startup School 2013 session where Paul Graham and Sam Altman hold live office hours with startups including CodeCombat, Flexport and others. The founders pitch and get on-the-spot feedback.

Engineering Explained compares Lexus's steer-by-wire yoke on the RZ 450e with Tesla's yoke. It covers how steer-by-wire works and how variable steering ratios address the yoke's flaws.

A scene from The Big Short in which Jared Vennett pitches credit default swaps on mortgage bonds to a hedge fund team, using a Jenga tower to illustrate collateralized debt obligations.

Veritasium explains quantum entanglement and spooky action at a distance, walking through Bell's inequality and the experiments that rule out hidden variables, in under ten minutes.

A short street-level clip of Joe Ades, the New York pitchman who sold vegetable peelers to crowds on the sidewalk. It shows his patter, showmanship and crowd handling in action.

Simon Sinek's TEDx talk arguing that great leaders and companies inspire action by communicating why they do something before how or what. He uses Apple as his main example.

MC Frontalot's nerdcore rap about the text adventure Zork, made for Jason Scott's Get Lamp documentary and featuring a cameo by Steve Meretzky. It was filmed over an evening in a basement.

MinutePhysics, with 3Blue1Brown, explains Bell's theorem using a Venn diagram paradox and polarizing filters. It shows why no local hidden variable theory can reproduce quantum correlations.

Sabine Hossenfelder explains superdeterminism as an interpretation of quantum mechanics, addressing common objections and misconceptions, including the worry that it kills free will or science. She ties it to Bell's theorem and hidden variables.

Billionaire Nick Hanauer warns fellow wealthy people in a TED talk that growing inequality could lead to social upheaval like pre-revolutionary France. He argues a higher minimum wage would grow the middle class and prosperity.

A five-minute demonstration of the Shepard tone, an audio illusion made from octave-separated tones that makes pitch seem to rise endlessly without ever getting higher.

A Pitchfork TV documentary following Dan Deacon in Montana as he finishes his album Bromst. It shows the experimentation behind it, including pieces written for MIDI-driven player pianos.

An Onion Talks satire in which a young media professional pitches compost-powered cars, offering the idea itself and leaving all implementation to others.

A PBS Space Time episode introducing de Broglie-Bohm pilot wave theory, an interpretation of quantum mechanics that avoids much of the strangeness of the mainstream views. It is aimed at curious lay viewers.

Ryan Dahl's first presentation of Node.js at JSConf 2009. He pitches event-driven, non-blocking I/O as the motivation, rather than JavaScript itself.

A CollegeHumor sketch from the Hardly Working series in which a pair of startup founders pitch a website using incomprehensible buzzwords and branding nonsense. It parodies Silicon Valley startup culture.

Sasa Juric explains what makes Erlang and Elixir suited to server-side systems, focusing on the BEAM concurrency model rather than syntax or ecosystem. He demonstrates processes, supervision, and fault tolerance.

Kirk Sorensen's Google Tech Talk on thorium molten-salt reactors (LFTR). He covers why the technology was shelved after early development and argues that now is the right time to revisit it.

First lecture of MIT 6.00, an introductory computer science course taught in Python by Eric Grimson and John Guttag. It covers the goals of the course, what computation is, and data types, operators and variables.

The Google I/O 2009 keynote introducing Google Wave, a real-time collaborative communication and document platform. It includes a long live demo and the developer preview announcement.

DHH's opening keynote at Rails World 2024 in Toronto, where Rails 8 beta shipped. It covers built-in authentication, Propshaft, Solid Cache, Solid Queue, Solid Cable, Kamal 2 and Thruster, pitching the One Person Framework that needs no PaaS.

Musician and audio engineer Benn Jordan tries Dolby Atmos as a consumer, covering the theory of immersive audio, its business model, and home theater and headphone listening. He concludes it often falls short of the pitch.

A four-minute Onion Talks parody in which a social media consultant pitches never putting any effort into social marketing. It lampoons TED-style talks and marketing consultants.

A Big Think talk in which hedge-fund manager William Ackman goes through the basics of finance and investing in under an hour. It is pitched as a crash course on the most important concepts.

Bruce Hauman presents Figwheel, a ClojureScript tool for live, interactive development with hot code reloading. He explains the main ideas, demonstrates how it works, and shares tricks for getting the most out of it.

Alexander Nix of Cambridge Analytica presents at the 2016 Concordia Summit on using big data, psychographic profiling and behavioral microtargeting in elections.

CGP Grey argues that a classroom works well only for the one student pitched at the average level, and sketches a future of personalized instruction. It introduces the idea of a Digital Aristotle, a tutor for every learner.

Mike Arrington of TechCrunch speaks at Startup School 2008 about how to get press coverage for a startup and how to respond to it.