nonlinear vacuum

A controlled demonstration by Wabash National of a tank trailer collapsing under vacuum, staged at an industry expo. The tank implodes as air is pulled out.

A brief demonstration of a railroad tank car imploding after a vacuum is pulled with its safety valves disabled.

Huygens Optics explores the idea that space is a non-linear elastic medium, and uses simulations to show how wave energy might be confined locally into particle-like objects. It touches on inertia, the Schwinger limit and the vacuum as a medium.

Tim Hunkin's 1987 TV series episode on how vacuum cleaners and related household machines work, remastered and upscaled in 2021. It is part of the six-episode 'Secret Life of Machines' series with hands-on demonstrations of everyday technology.

Part 1 of an episode of the British educational TV series The Secret Life of Machines, about how vacuum cleaners work and their history. It mixes humor with explanation of household technology.

Short footage from a NASA space suit test in which a technician is exposed to near-vacuum after an accidental depressurization. It shows the instantaneous effects on a human body.

AvE tears down a broken Dyson Animal vacuum and its expensive replacement, criticizing the molded plastic, flimsy switches and overall engineering, with his usual profane commentary.

Thunderf00t, a physicist, critically assesses the Hyperloop concept, covering the vacuum, pressure, safety, and cost problems of high-speed tube travel. He argues the media accepted the claims uncritically.

A three-hour PyCon 2016 tutorial by Christophe Pettus that orients Python developers to PostgreSQL. It covers installation, administration, and use, including vacuuming, MVCC, replication and backups.

Tom 7 (suckerpinch) delivers a long, comedic digression on gradient descent and floating-point imprecision. He shows how rounding behavior can supply the nonlinearity needed to build a neural network.

Adam Something argues that the Hyperloop is impractical, covering the costs and engineering problems of running trains in a near vacuum compared with conventional rail and metros. The description admits some wrong numbers in the original cut.

Dalibor Farny documents the hand manufacture of a nixie tube, from glassblowing to evacuation, with text notes rather than narration. He revived the lost craft of nixie tube making.

Technology Connections explains why the superheterodyne radio has its name and how mixing frequencies lets it tune stations well. It walks through the underlying wave phenomena and algebra and why the design solved a hard tuning problem.

Ben Krasnow shows the first image from his home-built scanning electron microscope, after months of work, and walks through how the parts operate together.

MinutePhysics explains that computers store brightness nonlinearly, so blurring and blending colors in raw RGB gives wrong, dark results. It shows why mixed colors, such as in gradients, look off.

Game Maker's Toolkit examines Nintendo's design approach of starting from a core play mechanic, making it fun, and building around it. Examples include Mario's jump and Luigi's Mansion's vacuum.

Real Engineering explains why SpaceX is building Starlink, including the economics of satellite internet. It covers the latency advantage of light in vacuum over fiber for long-distance links.

CityNerd explains why traffic congestion grows nonlinearly as more cars use a road network, and why adding road capacity tends not to fix it. It covers the consequences for drivers, bus riders, cyclists and pedestrians, and discusses alternatives such as true bus rapid transit.