experiment

A social experiment in which an 18-year-old woman runs a Tinder profile as a man and sees how differently the dating experience plays out for men.

Veritasium revisits Thomas Young's original double slit experiment with light, showing how interference supports the wave nature of light. It uses a pond-wave demonstration to explain the pattern.

A short animated lesson, featuring Dr. Quantum, on the double slit experiment and how observing electrons seems to change their behavior.

Veritasium visits Richard Lenski's lab to explain the decades-long E. coli evolution experiment, which asks how repeatable evolution is and shows bacteria evolving to use a new food source.

Excerpts from W. Edwards Deming's Red Bead Experiment, where workers draw beads from a bowl and are judged on red ones that are largely down to chance. It shows how system variation, not individual effort, drives results.

A BBC Earth clip from Super Powered Owls in which the team uses sensitive sound equipment to compare owl flight with other birds. It shows why owls fly almost silently.

A Seeker short documentary on a lab where robots run experiments with almost no human intervention, covering automation and active machine learning in drug discovery and synthetic biology.

Viznut demonstrates bytebeat, experimental music generated by extremely short C programs. It is the first of a series of videos on the technique.

Technology Connections experiments with filtering white and colored LEDs to make holiday lights look less garish. He explains why narrowband LED strings look harsh compared with incandescent bulbs.

Gary Wilson's TEDxGlasgow talk argues that internet pornography hyperstimulates the brain's reward system and can cause symptoms that reverse when people stop. TED notes that several claims are not supported by respected academic studies.

John Lin reveals a rewritten voxel engine demonstrated in a Crystal Islands scene, with much finer voxel detail, fast collision, fracture and path-traced global illumination.

TED talk by biochemist Cynthia Kenyon on how a simple genetic mutation can double the lifespan of the worm C. elegans, and what that suggests about extending healthy human life.

A hidden-camera social experiment in a park where three people try to steal a bike in the open: a white teenager, a black teenager and a young woman. It records how bystanders react to each.

Hard Is Easy runs experiments to show that a correctly tied figure 8 knot is not hard to untie after loading. He shows how two knots that look similar can behave differently depending on how they are dressed.

NightHawkInLight demonstrates how a Tesla valve works by sending a propane flame front through one, making the flow visible. It is a short, hands-on experiment video.

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.

Cody's Lab obtains pure heavy water (D2O) and drinks it as a taste test, reporting its flavor and feel. It is a short self-experiment.

Sciencium examines the Mpemba effect, the claim that hot water freezes faster than cold water. It walks through experiments and a published paper questioning the effect.

Veritasium shows an experiment from Prof. Dan Lathrop's lab with a spinning sphere of molten sodium, used to study how turbulent convection in Earth's core generates a magnetic field. It is a short demonstration of dynamo physics.

Matthias Wandel uses anemometer measurements to find where to place a fan to move the most air through a house at night. He finds that placing the fan some distance back from the window works better.

CGP Grey asks whether Star Trek-style teleportation would kill you and recreate a copy, working through the philosophy of identity and the Ship of Theseus. It is a short animated explainer.

A 2006 video showing a man openly cutting the lock and stealing a bike in New York City while passersby, including police, ignore him.

A four-minute demo of the greenhouse effect showing how increased carbon dioxide raises temperature. It uses a simple setup that is dramatic and easy to understand.

A 72-hour timelapse of Reddit's 2017 April Fools' experiment r/place, a collaborative pixel canvas where each user could place one pixel every few minutes. The frames come from an image archive and the Reddit API.

Veritasium argues that electric energy is carried by fields around the wires rather than by electrons moving through them, using a thought experiment with a large circuit.

Veritasium debunks the idea of learning styles, such as being a visual learner, with an interview with Daniel Willingham and a memory experiment. It argues that a multimodal approach helps everyone.

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.

Frans de Waal's TED talk shows videos of behavioral experiments on primates and other mammals that reveal empathy, cooperation, fairness and reciprocity. He argues these moral traits are not uniquely human.

Huygens Optics experiments with etching tiny patterns in glass, covering hydrofluoric acid risks, buffered oxide etch, photoresist and chromium masks, and laser-induced etching. It ends with attempts at microscopic Tesla valves.

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.

ElectroBOOM examines whether 5G and other electromagnetic waves can harm people, explaining the EM spectrum and the difference between ionizing and non-ionizing radiation. It includes experiments and measurements in his usual humorous style.

Nigel Stanford's music video Cymatics, in which real science experiments, such as Chladni plates, ferrofluid and water, visualize the audio.

The Thought Emporium's host describes making and taking a DIY gene therapy to treat his own lactose intolerance. It uses an AAV virus to deliver DNA coding for the lactose-digesting enzyme, made with biohacker Gabriel Licina's help.

Guitarist Jim Lill methodically tests what in an electric guitar affects its tone, swapping parts on a partscaster and even trying a 2x4 body. He finds that wood and construction matter far less than people assume.

PBS Space Time explains the quantum eraser experiment, in which erasing which-path information appears to reverse causality in a double-slit setup. It discusses what this means for quantum mechanics.

Sabine Hossenfelder explains the delayed choice quantum eraser and argues it does not rewrite the past, as popular accounts claim. She walks through what the experiment actually shows.

The Thought Emporium's update on the home-brewed gene therapy he took to cure his lactose intolerance. It reports how the effect held up over two years and what future versions might look like.

Yannic Kilcher explains how he trained a language model on three years of 4chan's /pol/ board and let it post on the site. He evaluates how good the model was and discusses the ethics and fallout.

Quanta Magazine explains the 2022 experiment that claimed to create a holographic wormhole on Google's quantum computer. The description now notes that a later independent analysis questioned whether any wormhole was created.

Archive footage from 1964 of Royal Marine Commando volunteers filmed on a field exercise after taking LSD at Porton Down. It documents a British military drug trial.