crowd reaction

A short clip of the audience at Valve's 2017 announcement of Artifact, a Dota 2 card game, reacting with visible disappointment. The footage captures the awkward silence and the logo reveal.

Marcus du Sautoy of the BBC demonstrates the wisdom of the crowd, showing that averaging many guesses of jelly beans in a jar lands near the true count.

A one-minute clip from The IT Crowd in which the characters hear a jingle for a memorable emergency phone number.

In an IT Crowd episode clip, Moss and Roy convince Jen that the internet is a small black box. She believes it and carries it around.

The parody anti-piracy warning from The IT Crowd Series 2, Episode 3, a spoof of the 'you wouldn't steal a car' ads. It is a one-minute comedy sketch.

A ten-minute explainer from Hypermind on the wisdom of crowds, covering Galton's discovery and the diversity theorem. It argues that collective intelligence comes from diversity, independence and aggregation.

A demo of the Cubli, a 15 cm cube that uses reaction wheels to jump up onto a corner, balance there and fall in a controlled way to move. The video shows these three abilities chained into locomotion.

Thunderf00t debunks the Waterseer, a crowdfunded device that claims to condense drinking water from the air using cool ground. He argues the physics does not support its claims.

The classic IT Crowd scene in which tech support answers every call with 'Have you tried turning it off and on again?'

Luis von Ahn, creator of CAPTCHA and reCAPTCHA, explains how small contributions from many people online can digitize books. He then introduces Duolingo as a way to translate the web while people learn languages.

A BBC Four documentary following Alan Bond and Reaction Engines as they pursue the Skylon spaceplane and its SABRE engine. It covers the history from HOTOL and the heat-exchanger breakthrough.

Shrek Retold is a crowdsourced, scene-for-scene remake of Shrek made by over 200 creators, each redoing a short section in their own style.

Captain Disillusion debunks the Cicret Bracelet, a crowdfunded wearable that claimed to project a touchscreen onto the wrist. He looks at the concept, design, execution and fundraising.

Amateur footage from the 2009 Sasquatch music festival in which one person starts dancing alone and a crowd gradually joins in, turning it into a dance party.

Wendover Productions explains counterintuitive riot control techniques based on research, showing that effective tactics tend to avoid violence.

A University of Tokyo demo of a rock-paper-scissors robot that always wins, using high-speed vision to read the human hand and respond faster than people can perceive.

Short 2006 footage of station staff in white gloves pushing commuters onto a packed morning train at a Tokyo station on the Toyoko Line.

A short Tim and Eric Awesome Show sketch, The Universe I, II & III, in which the cosmos is shown in a deliberately absurd way. It is an Adult Swim surreal comedy bit.

A one-minute clip from The IT Crowd (S03E02) in which Roy and Moss memorize fake football jargon to pass as real men. The scene's punchline is the ludicrous made-up football talk.

A one-minute Steve Summers clip of Willy Wonka saying no, don't, stop. It is a reaction meme.

ACS Reactions investigates why Mexican Coke, supposedly cane sugar sweetened, tested as having glucose and fructose, explaining that sucrose breaks down in acidic soda.

Mark Rober builds a glitter-bomb booby-trapped package to take revenge on porch pirates, filming the thieves' reactions. Some reactions were later acknowledged as partially staged.

Recording of Steve Jobs's 1997 Macworld Boston keynote, in which he reviews Apple's status and announces the partnership with Microsoft, including a $150 million investment and a five-year Office commitment. The audience reaction is part of the draw.

Thunderf00t presents high-speed camera footage of alkali metals such as sodium and NaK reacting with water. The footage shows that the explosion is not caused by hydrogen ignition, as the usual explanation says. It is a Coulomb explosion driven by electrons leaving the metal.

Luis von Ahn, creator of CAPTCHA and reCAPTCHA, presents Duolingo at TEDxCMU 2011. The idea is to have millions of people translate the web for free while learning a language, an example of human computation.

A 2006 Google TechTalk in which Luis von Ahn introduces human computation, using people's effort to solve problems like image recognition that computers cannot yet handle. It covers games with a purpose and related ideas such as CAPTCHAs.

Thunderf00t debunks the Fontus self-filling water bottle, arguing that pulling meaningful amounts of water from air with a small solar-powered device is thermodynamically impractical.

Dave Jones of EEVblog debunks the Solar Roadways project, which raised millions through Indiegogo and government funding. He works through the solar generation and LED power calculations to show the idea isn't viable.

A commentary video by YouTuber PaymoneyWubby reacting to children's content on the Musical.ly app, which became TikTok. It highlights the child-safety concerns of young kids dancing on a public social platform.

A REACT episode where teenagers try Windows 95 for the first time and react to the retro interface and technology.

A one-minute clip from Mad Men season 5 in which Don Draper tells Michael Ginsberg in an elevator that he doesn't think about him at all.

An episode of REACT in which children try to figure out 1970s-1980s computers, including an Apple II and floppy disks. It was made to promote the AMC show Halt and Catch Fire.

A short clip of Romain Dumas and the all-electric VW I.D. R breaking the overall Pikes Peak hillclimb record with a 7:57 run, over 16 seconds faster than the previous best, with footage of the crowd's reaction.

FreeBSD developer Benno Rice traces the history of init and bootstrap systems at linux.conf.au 2019 to explain why systemd was seen as necessary and why it provokes such strong reactions. He also discusses why change is scary.

Feature-length documentary following DeepMind's AlphaGo program as it prepares for and plays the 2016 match against Go champion Lee Sedol. It covers the team, the games, and the emotional reaction of the Go world to an AI beating a top human.

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.

Every Frame a Painting analyzes how Jackie Chan stages action comedy, with nine principles such as starting from a disadvantage, using the environment, clear shots, and keeping action and reaction in the same frame.

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.

Psychologist Melanie Joy's TEDxMunchen talk introduces carnism, the invisible belief system that conditions people to eat some animals but not others, and how it shapes reactions to food choices.

A clip from Attenborough's Life of Mammals following a San tribesman in the Kalahari on an eight-hour persistence hunt, running down a kudu through harsh heat. It shows tracking, endurance running and the hunter's reaction after the kill.