permit a38

A segment from the animated film The Twelve Tasks of Asterix, in which Asterix must get Permit A 38 from a maze-like building run by unhelpful bureaucrats. He wins by asking for a nonexistent permit.

Footage of an Airbus A380 engine blade-off test, in which a fan blade is deliberately released at full thrust to show the engine contains the failure.

Footage of Airbus's 2006 certification evacuation trial of the A380, in which 873 people left the aircraft within the required 90 seconds using half of the 16 doors. The test was supervised by EASA and the FAA, and one passenger broke a leg.

Wendover Productions explains why Boeing's efficient 787 beat Airbus's giant A380, contrasting hub-and-spoke with point-to-point routes. It covers the economics of long-haul flights.

A short Wendover Productions explainer on ETOPS, the rules that let twin-engine jets fly long routes over oceans. It covers the economics that favored twinjets like the 787 over four-engine aircraft like the A380 and 747.

ReasonTV tells the story of Bob Tillman, who spent nearly five years and $1.4 million trying to convert his San Francisco laundromat into apartments. It walks through the permitting, appeals and neighborhood opposition he faced.

A video explaining why Japanese cities look the way they do, through Japan's national tiered zoning system that permits mixed use and flexible development. It compares this approach with more restrictive zoning elsewhere.

A More Perfect Union report on xAI's data center in Memphis, which residents say burns gas without permits or pollution controls and harms their health.

PBS Space Time explains how general relativity permits warp drive in principle and covers recent theoretical advances toward solving the negative energy problem.