single answer

A SIGGRAPH Asia 2013 research demo of 3-Sweep, a tool for extracting editable 3D objects from a single photo using a few user strokes. It predates modern AI image tools.

About Here explains how North American building codes requiring two staircases make small multi-story apartment buildings hard to build, and contrasts this with places that allow single-stair designs.

Tom Scott performs a fictional story at GeekyConf about the day Google accidentally stops checking passwords, letting anyone into any account. It works as a parable about how a single point of failure in login can unravel everything built on it.

A short clip of Dr. Robert Zubrin, author of The Case for Mars, answering why humanity should go to Mars. He argues that societies grow by challenging themselves and that exploration inspires young people.

Linus Tech Tips addresses criticism of its clickbait-style thumbnails in an Honest Answers episode, explaining that the YouTube algorithm pushes creators toward them.

CNBC coverage of Boeing CEO Dennis Muilenburg answering shareholder questions after the 737 Max crashes. He assures shareholders the plane is safe after a software fix.

CGP Grey explains the Single Transferable Vote, a proportional ranked-ballot system, and why politicians have little incentive to adopt it. It is a short animated explainer of how multi-winner ranked voting works.

Technology Connections explains why single-hose portable air conditioners are inefficient and often a poor choice compared with window units. It details how the single hose pulls in warm outside air and wastes energy.

Jon Ronson, author of The Psychopath Test, gives a TED talk on the blurry line between sane and crazy and on psychopathy as a spectrum, with stories of how the label gets applied.

A PBS Space Time episode explaining why faster-than-light travel is equivalent to travelling back in time, using relativity and Minkowski diagrams for different observers.

Bill Gross, who has founded and incubated many start-ups, ranked hundreds of companies on five factors. He presents the one factor that stood out as the biggest predictor of success.

A Just Have a Think video on the proposed 16 billion pound Xlinks project to build solar, wind and battery capacity in southern Morocco. It would send around 3.6GW to the UK by subsea HVDC cable as near-baseload power.

A NASA video on the 29 days after the James Webb Space Telescope's launch, when thousands of parts must deploy in sequence on the way to its destination a million miles away.

Answer in Progress investigates why Japanese websites look different from those elsewhere, using an AI clustering approach to test the 2013 claim. It then looks at possible explanations.

A short clip of Richard Feynman answering an interviewer's question about why magnets repel, explaining that a 'why' question depends on a shared framework of understanding. It illustrates how hard it is to explain fundamentals to a layperson.

A 1993 interview in which Steve Jobs talks about designer Paul Rand, who created the NeXT logo. He recounts Rand's insistence on presenting a single design and his uncompromising professionalism.

A short Dyalog demonstration building Conway's Game of Life in a single line of APL, step by step. It shows how array operations replace loops.

Not Just Bikes introduces the "stroad", a street-road hybrid common in the US and Canada that fails at both jobs. He contrasts it with Dutch design, where each road has a single purpose, and covers cost, danger and ugliness.

A short BicycleDutch video on how the Netherlands got its cycling infrastructure, including the 1970s protests and the shift away from car-centric planning. The channel later published an updated version.

CGP Grey's quick, witty explainer on the differences between the United Kingdom, Great Britain and England, and the countries that make up the UK.

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.

A 1983 BBC interview in which Richard Feynman is asked how magnets work and explains why 'why' questions are hard to answer in everyday terms. He reflects on what counts as an explanation and the limits of analogy.

Robert Miles gives a remastered introduction to AI safety, adapted from a talk in London. It lays out why advanced AI could go wrong and answers common objections.

An animated 11-minute tour of the whole field of mathematics as a single map, showing how pure and applied math and their sub-fields relate to each other.

Not Just Bikes explains how small pockets of shops and restaurants inside residential Dutch neighbourhoods create liveliness and help reduce traffic. It argues this kind of mixed-use design has been illegal in most of the US and Canada for a century because of zoning, and should be brought back.

3Blue1Brown presents the Triangle of Power, an alternate notation that unifies powers, logarithms and roots in a single triangular symbol. The video shows how the inverse operations relate and how the notation could help.

An animated simulation comparing single-winner voting methods such as plurality, instant runoff and STAR. Colored regions show which candidate wins as a randomized electorate shifts across a two-dimensional political space, building on Ka-Ping Yee's earlier diagrams.

Veritasium explains why bicycles are stable, arguing that gyroscopic effects are not the answer. The video shows countersteering and an experiment where riders blocked from steering the opposite way cannot turn.

A clip from Steve Jobs's 1997 WWDC session, in which he answers a hostile question from an audience member about Apple killing OpenDoc. He says to start with the customer experience and work back to the technology, and that saying no is part of focus.

Wendover Productions explains why drone delivery has not become the future once promised. It covers no-fly zones, costs and the difficulty of the final drop-off.

America's Test Kitchen tests eight carbon-steel skillets to find the best one, asking whether a single pan can replace stainless, cast iron and nonstick. It names a winner and covers how the pans perform.

Debris by Farbrausch, the winner of the Breakpoint 2007 demo competition. All of its 3D visuals, textures and music come from a single 177 KB executable.

A Daily Show with Jon Stewart segment from 2014 covering the People's Climate March in New York and a House science committee struggling with basic global warming facts. It mixes satire with an argument against climate denial.

Jacques Pepin demonstrates deboning a whole chicken, quickly and with complete control. It is a short, wordless-feeling technique demo that shows a skill most cooks never learn.

A clean-audio clip from Apple's 1997 WWDC where Steve Jobs answers a hostile question from a developer about OpenDoc. He argues you must start with the customer experience and work backwards to the technology.

A beginner-focused tutorial on freehand knife sharpening with a single stone, aiming for a shaving-sharp edge in about five minutes.

A short TEDx talk by Joe Smith teaching how to dry your hands with a single paper towel. It shows a simple technique for cutting waste.

A short clip of Richard Feynman answering an interviewer's question about how magnets work, in which he explains why a why-question has no simple answer without a shared frame of reference.

Adam Savage answers viewer questions on dealing with condescending colleagues, focusing on dismissive phrases such as 'why don't you just' and 'I would have'. He explains why such language undermines the person receiving it.

A nine-minute Stewart Lee stand-up routine about political correctness and the claim that it has gone mad. It is dry, layered British comedy that takes the complaint apart.