ios 13

Ava DuVernay's Oscar-nominated documentary on how the history of racial inequality in the US, from slavery through the 13th Amendment's exception clause, drives mass incarceration. It combines archival footage with testimony from activists and scholars.

NASA JPL engineers explain the final minutes of the Curiosity rover's entry, descent and landing on Mars, which combined aerobraking, a parachute and a skycrane. It lays out the tight sequence of events that all had to work automatically.

A 1957 Walt Disney film in which he explains and demonstrates the multiplane camera, the animation tool that gave 2D films depth. It is a short behind-the-scenes piece from Disney's archives.

A long documentary-style video arguing that slavery in the US effectively continued through convict leasing and the prison system until around 1942. It covers the constitutional carveout and the history of neoslavery.

A three-minute clip from BBC's Planet Earth narrated by David Attenborough about Cordyceps, the fungus that infects insects and takes over their behavior. It shows an infected ant and its demise.

A short BBC clip in which David Attenborough shows a lyrebird imitating sounds, including camera shutters, car alarms and chainsaws. It comes from the BBC natural history series Life on Earth.

A BBC Weird Nature clip about vervet monkeys in the Caribbean that drink alcohol, and how they split into heavy drinkers, social drinkers and teetotalers.

A short BBC clip narrated by David Attenborough showing crows in Japan using city traffic to crack nuts, dropping them at intersections and retrieving them when the light changes.

Seeker's Focal Point short documentary on ASML's extreme ultraviolet lithography machines, which make the most advanced chips. It shows how plasma-generated 13.5 nm light is used to push Moore's Law forward.

A tour of the historic WLW transmitter facility in Mason, Ohio, recorded at Hamvention 2013. It shows the surviving equipment from the 500,000 watt AM era, when WLW was the only US station at that power, and explains the history.

A Rare Earth explainer on Japan's criminal justice system and its extremely high conviction rate. It outlines the system's idiosyncrasies and how suspects are treated.

Footage of the Mercedes A-Class production line at the Rastatt plant in Germany, filmed in 2013. It shows robots and fixtures working through assembly.

A short 1999 documentary clip about millionaires featuring a young Elon Musk, including footage of him taking delivery of an expensive car.