free play

A 2016 conference talk by a mobile game CEO on the tricks of free-to-play monetization, including player profiles and how to target high-spending whales.

The first lesson of MangoJelly's FreeCAD 0.20 beginner course, covering setup, preferences and navigation. The series teaches fundamentals through complete workflows such as sketching, Part Design and STL export.

The introduction to MangoJelly's beginner course for FreeCAD 1.0. The course teaches solid modeling with the Part Design, Sketcher and Part workbenches.

Rowan Atkinson's speech at the launch of the Reform Section 5 campaign in Parliament in 2012. He argues against criminalizing insulting words and for answering speech with more speech.

The first episode of Milton Friedman's 1980 Free To Choose series, on how markets and voluntary exchange organize economic activity and the price system. It includes visits to Hong Kong, the U.S. and Scotland and a panel discussion with critics.

Christopher Hitchens delivers a speech defending freedom of speech, including the right of audiences to hear offensive speakers and a take on the fire-in-a-crowded-theatre line. It is framed around the Charlie Hebdo attack.

Tom7 explains and demos software that learns to play NES games by finding score patterns in memory and then searching for inputs that raise it. It is the video companion to his SIGBOVIK paper.

A 2007 Google Tech Talk in which Cliff Click of Azul Systems presents a lock-free concurrent hash table that scales to 768 CPUs. He explains why it is correct by reasoning in a different way than usual happens-before and memory-order arguments.

Posy explores segmented displays, from the seven-segment display to alternative designs with fewer or more segments, with patents and history.

Eben Moglen's re:publica 2012 talk argues that media which spy on and data-mine the public threaten freedom of thought, and that free technology and free culture are needed to protect it.

Rowan Atkinson speaks against the word 'insulting' in the UK Public Order Act, as part of the Reform Section 5 campaign. He argues for robust free speech and against the slippery slope of criminalizing offense.

A 1997 Noam Chomsky talk at Northeastern University about the gap between free-market rhetoric and practice. He argues that business relies heavily on state intervention, and he discusses trade, NAFTA and labour versus capital mobility.

Eben Moglen of the Software Freedom Conservancy speaks at the 2009 Law of the Commons Conference about free and open software as a model for a new intellectual commons. The talk covers the legal and social case for sharing knowledge.

IEEE Spectrum interviews Samsung display researcher Johan Feenstra on how electrowetting displays work. He explains why they can match LCD capability while being about three times more efficient.

Jordan Hubbard, FreeBSD co-founder, discusses where FreeBSD might go over the next decade at MeetBSD California 2014. He draws on his Apple Unix experience, including bringing launchd-style init ideas to FreeBSD.

Linus Tech Tips tests a large batch of DisplayPort cables with a Total Phase cable tester, checking bandwidth and signal quality. Many cables did not meet their claimed specs.

A short Bookeen R&D demo showing smooth H.264 video playback on a Pearl E Ink panel, driven by a TI OMAP3621 chip and custom controller software.

A short clip of Richard Stallman singing the free software song, recorded during a visit to Ecuador.

Not Just Bikes visits the Toronto Islands, home to Canada's only car-free neighbourhood. He explains the waiting list and strict ownership rules and asks why more such places aren't built.

Charbax interviews the CEO and CMO of CLEARink at SID Display Week 2019 about their eTIR reflective display technology. It demos 9.7-inch low-power color and video ePaper with high refresh capability.

Highlight clip from the 2021 Free Expression Awards honoring YouTube CEO Susan Wojcicki. The video became notable for its overwhelmingly negative like/dislike ratio.

In Ars Technica's War Stories, Naughty Dog co-founder Andy Gavin explains how the team squeezed Crash Bandicoot onto the original PlayStation. They overwrote Sony library code in RAM, built custom animation compression, and streamed assets around slow seek times.

Richard Stallman's TEDxGeneva 2014 talk describing how nonfree programs give companies control over users and what users can do to regain control. It introduces the free software movement and the four freedoms.

Neuroscientist Karl Friston gives a 15-minute talk on the free energy principle, covering Markov blankets, Bayesian model evidence and global brain theories.

Netflix engineer Drew Gallatin explains why the company runs FreeBSD-current on its CDN. He describes the team, how they track upstream, their contributions and performance milestones, and a bug causing a 20% performance regression.

A SIGGRAPH 2013 demo from Douglas Lanman and NVIDIA of near-eye light field displays, which allow much thinner head-mounted displays that still show accurate focus and depth cues.

Matt Ahrens presents the FreeBSD Foundation sponsored RAID-Z Expansion project for ZFS at the June 2021 FreeBSD Developer Summit. It explains how a RAID-Z vdev can be grown by adding disks on the fly.

A tutorial in the GAS Therapy series showing how to recreate the Teenage Engineering OP-1 and OP-1 Field with free software. It argues you do not need to buy expensive gear to make music.

Valve's feature-length documentary following three professional gamers competing in the first Dota 2 International tournament for a million dollar prize. It shows the sacrifices and pressures of top-level esports.

Eben Moglen speaks at NYU in 2010 about freedom in the cloud, arguing that centralized services and handing over personal data and server logs erode privacy and freedom. The talk lays out the motivation for FreedomBox, a personal server for your own data.

Rick Reed of WhatsApp speaks at MeetBSD about running a messaging service on FreeBSD and Erlang at huge scale. He covers the stack, tuning and the challenges of millions of connections per host.

Builder Matt Risinger freezes water-filled copper and PEX piping capped with SharkBite fittings to see which survives. The video compares how each pipe type handles freezing.

Hobbyist Wesley Kagan shows his Miata running and driving with a homemade version of Koenigsegg's freevalve camless valve technology. The build uses open CAD files and code and he describes it as an ongoing work in progress.

HDTVTest reviews the Apple Pro Display XDR using measurements and a side-by-side comparison with a Sony BVM-HX310 dual-layer LCD reference monitor. It examines how well the display handles HDR against a professional reference.

A ten-minute clip of Noam Chomsky on the Faurisson affair and free speech. He argues that supporting free speech means defending views you despise.

Technology Connections explains how refrigerator and freezer design affects energy use, using chest freezers to show why top-opening designs and layout choices matter. It includes thermal-camera footage of cold air spilling out of upright units.

A Ben Heck Show episode tearing down the Nintendo PlayStation prototype, one of the rarest consoles ever, with its owners Terry and Dan Diebold. Part 2 then gets it working again.

A two-minute clip from a 1979 Phil Donahue interview in which Milton Friedman makes the free-market case for taxing pollution. He treats pollution as an externality that can be given a price.

Scott Long of Netflix presents the architecture of the OpenConnect content delivery network at NYCBSDCon 2014. He explains why Netflix runs FreeBSD 10 on its appliances and what the future holds.

Gleb Smirnoff explains why Netflix built its own CDN on FreeBSD and NGINX, and how Netflix and NGINX Inc. collaborate on the software. It is a conference talk about open-source choices for video delivery.