locks

Practical Engineering explains how canal locks work, including the water-saving basins of the new Panama Canal locks.

A short clip from an ACM and Computer History Museum interview in which Leslie Lamport discusses writing his paper on time, clocks and the ordering of events. He explains its link to special relativity.

A LockPickingLawyer video in which a locksmith claims his videos are fake and challenges him; he responds by picking the lock. It is a short, typical LPL demonstration.

Adam Something gives a short, tongue-in-cheek defense of Soviet-era prefab apartment blocks. He argues they offer efficient, dense housing with schools and services built nearby.

Stuff Made Here designs and builds an "unpickable" lock, then calls in a locksmith to see if it can be defeated. It covers the mechanical design effort and the attempt to pick it.

CBC Marketplace investigates locksmith scams in the Greater Toronto Area. It exposes networks of fake Google Maps listings and fake reviews, and uses hidden cameras to show how low quotes turn into overcharges.

A short Vox video on Barcelona's superblocks, an urban design approach that closes interior streets to through traffic to return space to pedestrians.

Dean Friedman's near-hour-long introduction to synthesis, covering the building blocks of sound and the controls on a synthesizer. He slowly adjusts knobs so viewers hear what each parameter does.

David Tong, a Cambridge theoretical physicist, explains at the Royal Institution that the fundamental building blocks of nature are quantum fields rather than particles. He covers what we know about these fields and how they fit into the Standard Model.

Engineer Stuff Made Here builds two new supposedly unpickable locks with different designs and sends them to the Lock Picking Lawyer to see whether they can be defeated. The video covers the novel anti-picking mechanisms.

Deviant Ollam gives a long talk on risk and preparedness: get a lawyer, passport, locksmith and other resources before you need them. It covers practical steps to build defenses against serious problems in life.

JJRicks rides a driverless Waymo in Phoenix when it gets confused by traffic cones, blocks traffic, and evades the support vehicles sent to retrieve it. The episode is one of a long series of rider-view Waymo videos.

The first episode of Clickspring's series on reproducing the Antikythera Mechanism by hand, laying out the plan and the history. The series follows a machinist building the ancient Greek device with traditional tools and methods.

The Lock Picking Lawyer tests the supposedly unpickable lock designs built by the Stuff Made Here channel. He looks for bypasses and weaknesses in the novel anti-picking mechanisms.

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.

Locksport historian Schuyler Towne's RVASec 2012 talk on why people lock their doors, tracing the history of locks and the assumptions about security behind them.

A Technology Connections video essay on how analog and digital clocks shape different mental models of time, with the minute hand acting as a progress indicator.

Lock-picking YouTuber Bill Johnson (BosnianBill) explains how to choose a high-security lock and why, showing examples and comparing designs. It covers what makes some padlocks more pick-resistant than others.

CuriousMarc powers up a vintage HP 5061A cesium beam clock and explains both the quantum principle and the HP implementation in detail. It is part of a longer atomic clock series.

Historia Civilis traces the history of work and time discipline, comparing modern working hours with those of medieval peasants and the changes brought by clocks and industrialization. It draws on works such as Schor's The Overworked American.

Adam Savage shows a set of Mitutoyo ceramic gauge blocks and uses them to explain metrology, the science of measurement. He argues that accuracy and precision work differently than most people assume, which changes how you think about every measuring tool.

A HOPE conference talk by Howard Payne and Deviant Ollam on common keys, such as elevator and fire service keys, that open many buildings. It covers physical security weaknesses from shared key standards.

Deviant Ollam's DEF CON 17 talk explains how legally checking a firearm in luggage can be the most secure way to fly with valuable tech. It covers firearm transport rules and luggage locks.

A 2017 video arguing that banks and Blockstream steered Bitcoin toward the Lightning Network. It is partisan commentary from the Bitcoin Cash side of the scaling dispute.

ITS Tactical demonstrates how a ballpoint pen can open a zippered suitcase without leaving a trace, bypassing its lock, and suggests countermeasures.

Casey Neistat's social experiment in New York City where he tries to 'steal' his own bike with various tools, showing how little stops passers-by from helping.

LockPickingLawyer cuts through a LiteLok flexible bike lock with cable cutters in about 16 seconds, one of several videos defeating the product.

Music YouTuber Rick Beato describes confronting the people behind copyright blocks on one of his videos. The video is a rant about how takedowns and demonetization hit music education channels.

A LockPickingLawyer video showing that a padlock sold as an Amazon's Choice high-security product can be opened trivially, with no picking needed.

Howard Abrams demonstrates, in an EmacsConf 2015 talk, how he uses org-mode's Babel and Tramp to configure and operate remote servers from a single document. Code blocks, their results and the explanatory text all live together.

Veritasium explains why the one-way speed of light has never been measured, only the round-trip speed, since measuring it requires synchronized clocks that assume the answer. It explores the implications for relativity.

Alan Kay's 2015 talk on the power of simplicity, arguing that systems become simpler by building on more sophisticated fundamental building blocks and that big research horizons drove invention at Xerox PARC. It ranges across computing, tools and scaling software.

Oh The Urbanity! argues that most city dwellers live in dense residential neighbourhoods outside downtown, which can be calm and peaceful. It draws on older, denser parts of Toronto and Montreal.

A short How to ADHD explainer, featuring Brendan Mahan, on why simple tasks can feel impossible for people with ADHD. It introduces the 'wall of awful', a pile of past failures, shame and anxiety that builds up in front of a task and blocks starting it.

Deviant Ollam, head of a physical penetration testing team, presents tactics for getting into buildings, from bypassing door levers with a wire to defeating bank doors. He argues that physical security is often surprisingly weak.

Raymond Hettinger's PyBay 2017 keynote on concurrency in Python. It covers threads, processes, asyncio, locks and the GIL, with live shell-based examples.

A demo of writing technical documents in Emacs Org mode using org-babel, so that code blocks and generated content stay consistent when things change. The author shares the demo files and his dotfiles.

A five-minute CGP Grey explainer arguing that a phone is effectively an extension of your mind, and that any backdoor or master key into encrypted devices will inevitably be abused or leaked. It frames the encryption debate as locks that are either unbreakable or absent.

Anders Brownworth gives a basic visual introduction to blockchain using an interactive web demo, covering SHA256 hashes, blocks, chains, distribution, tokens and coinbase transactions.

Noel Rappin's MountainWest RubyConf talk introduces Smalltalk to Ruby programmers. He compares the two languages' object models, blocks, 1-based arrays, simple syntax and live programming environment, and walks through sample code.