rc plane

Peter Sripol builds and flies an RC aeroplane whose wings are rotating KFC buckets, using the Magnus effect (Flettner rotors) for lift. It is a hobbyist experiment in unconventional aerodynamics.

Peter Sripol shows his homemade Part 103 electric airplane flying, built from hobby brushless motors and batteries. The video covers the first flight out of ground effect.

A one-minute clip of Spencer Lisenby setting a 545 mph speed record in an RC glider, the Transonic DP, using dynamic soaring. No motor is involved.

A GoPro-recorded flight of an RC glider setting a 548 mph dynamic soaring speed record at Parker Mountain, California, using only wind gradients.

A short compilation of aircraft flying through clouds and moist air, showing the spiraling vortices that wings leave behind. The footage shows wingtip vortices and the way planes disturb cloud layers.

Lilium's CTO gives a short update on the electric jet's design, certification and development. It shows the canard and rear wing layout and the wheel design.

A 1957 Walt Disney film in which he explains and demonstrates the multiplane camera, the animation tool that gave 2D films depth. It is a short behind-the-scenes piece from Disney's archives.

A short EDS television commercial that shows an airplane being built while it is in flight. It is an early use of the 'building the plane as it flies' metaphor.

A long rebuttal arguing that the Wright Brothers truly invented the airplane, responding to other YouTubers who credit others. It walks through the engineering breakthroughs the Wrights achieved, such as control and wind tunnel work.

AVweb's Paul Bertorelli analyzes the safety record of the Cirrus Airframe Parachute System (CAPS), looking at the 90-plus deployments over 20 years of Cirrus flying. He asks whether the whole-aircraft parachute has actually saved lives.

A Fully Charged episode on Electroflight, an early-stage project to build a fully electric racing plane that can exceed 300 mph. It features two motors driving contra-rotating propellers.

Robert C. Martin's Ruby Midwest 2011 keynote argues that software architecture should express the application's intent rather than its framework. He covers separating entities, interactors and boundaries so the web, database and framework are details.

Evan Czaplicki, creator of Elm, discusses the hard parts of running an open source project: online community conflict, why its patterns arise, and a cultural history of open source. He offers ideas for more civil, productive communication.

Christopher Alexander's keynote at OOPSLA 1996 on patterns in architecture, addressed to the software community. He moves beyond patterns toward deeper ideas of wholeness and living structure.

Greg Young's Code on the Beach 2014 talk on CQRS and event sourcing. He argues mature domains are built on facts that occurred rather than current state, and covers the business and technical benefits.

James Howard Kunstler's TED talk argues that American public spaces and architecture have become unworthy of care, damaging civic life. He presents suburban sprawl and car-first design as failures of the common good.

An Isaac Arthur episode on arcologies, self-sufficient habitats that could house whole cities, on Earth or on harsh worlds. It covers how such structures might work and what limits their size.

Simon Brown's Agile on the Beach 2019 talk presents the C4 model, a lightweight approach to diagramming software architecture with a shared vocabulary and simple notation.

FortNine's tongue-in-cheek guide to why drivers fail to see motorcyclists and how riders can make themselves more visible. It touches on perception psychology, including the role of saccades.

Robert C. Martin (Uncle Bob) talks about clean architecture and design, including keeping the database and frameworks out of the center of an application. It is an hour-long conference talk.

People Make Games explores VRChat, the social virtual world that many consider the metaverse people actually like, interviewing users and covering its communities and uncertain future.

A short clip of Robert Sapolsky on how social hierarchy generates chronic stress, drawing on baboon research. It links rank-related stress to heart health and life expectancy.

Day9 gives a passionate first look at what his StarCraft: Brood War Remastered series will teach. He argues Brood War is primarily a real-time game and only secondarily a strategy game, making the commander fantasy a matter of mechanics.

A 1987 episode of The Computer Chronicles on Apple's HyperCard, showing users building their own applications. Gary Kildall appears and Bill Atkinson discusses the program, with credit given to earlier influences.

FortNine surveys motorcycle airbag technology and explains why airbags have not reached mainstream adoption. It breaks down gear such as the Helite Turtle, Dainese D-Air and Alpinestars Tech-Air.

Bryan Cantrill's talk on corporate open source anti-patterns, first given at FISL 2012 and again at the Liferay Symposium. He lays out the mistakes companies make when open sourcing code, such as announcing future open sourcing, and discusses licenses.

A dotJS 2012 conference talk by Fat (of Twitter Bootstrap fame) on what open source really means and why maintainers feel guilty about it. It covers the obligations, expectations and burnout that come with releasing popular open source software, delivered with humor.

A Noclip Greatest Hits documentary on the legacy of RollerCoaster Tycoon, covering its original design, Chris Sawyer and the OpenRCT2 community that keeps it alive.

Mark Rober builds a machine that plays the Cyclone arcade game with perfect timing and discovers the game is rigged so that perfect play still loses. The video explains the physics and electronics tricks behind carnival-style skill games.

Technology Connections gives a deeply researched history of RCA's CED video disc system, a capacitance-based format that took over a decade to reach market. Part one covers its development and strange technology.

Ian Cutress interviews Mike Clark, AMD's chief architect of Zen, about his career since the K5, how Zen began and how CPUs are designed. It also covers the future of AMD.

Greg Young, who coined CQRS, gives an in-depth GOTO 2014 talk on what event sourcing is, when it is valuable and when it is not, along with its trade-offs and common misconceptions.

A video arguing that exercise matters for the brain as much as the body, linking movement, the nervous system and BDNF to learning and memory. It draws on research connecting complex movement to brain development.

Greg Young, who coined CQRS, looks back on a decade of domain-driven design, CQRS and event sourcing at DDD Europe 2016. He discusses where event sourcing applies and how simple its core can be.

Steve Mould shows Spintronics, a set of mechanical components such as resistors, capacitors and transistors linked by chains, that give an intuitive feel for how electrical circuits work.

A three-minute demo of a series circuit with three LEDs that behaves in a surprising way, posed as a question of how it works.

A Healthcare Triage episode summarizing the evidence on the health benefits of exercise, made in response to people misreading the host's column on exercise and weight. It argues exercise offers large benefits.

A short clip of Leo Laporte interviewing Bill Atkinson about developing HyperCard, including his story that the idea came during an LSD experience.

David Patterson's talk on the history of computer architecture, from RISC and superscalar designs to the end of Dennard scaling and Moore's Law. It argues that domain-specific architectures and open instruction sets open a new golden age.

Robert C. Martin (Uncle Bob) presents the principles of Clean Architecture, covering dependency direction, boundaries, and why frameworks and databases should be details rather than the center of an application.