efficiency

A Margin Call clip in which Will Emerson tries to persuade Eric Dale to return to the firm, and Dale recounts calculating the lifetimes saved by a bridge he helped build.

A two-minute 2008 clip from Sun's Fishworks team in which Brendan Gregg uses DTrace to show disk latency spiking while he shouts at a rack of drives. Bryan Cantrill narrates the demonstration.

Chef Jon Kung explains why he cooks almost exclusively on induction, citing fast heating, cleanliness and precise temperature control. He shows a rounded induction wok burner.

Casey Muratori captures CygnusEd Professional running on an Amiga 2000, showing how smoothly it scrolled text. He notes the real effect is better on a period CRT.

A two-minute explanation of what a rocket mass heater is, starting from how a conventional wood stove works and why creosote and chimney fires occur. It shows how burning hot and storing the heat in thermal mass makes for an efficient heater.

A 2001 University of Miami experiment ignites a leak from a gasoline fuel line in one car and a leak from a hydrogen connector in another. The hydrogen fire burns out quickly while the gasoline fire consumes its car.

A short demo showing slow 2D drawing in the Windows 7 GUI compared with XP. It attributes the slowdown to the display driver model lacking hardware accelerated GDI.

A short South China Morning Post report on Nio's second-generation automated battery-swap stations for electric vehicles. It notes that Nio had built more than 800 stations in China by early 2022.

A short Microsoft promo comparing classic Teams with the rewritten new Teams side by side, claiming faster startup and better performance. The new version is shown taking around nine seconds to launch.

Short HD closeup of a Tesla Model S battery swap, showing the pack lowered out and another pushed into place.

Footage of the 2007 Aurora test, in which a cyberattack was used to destroy a large generator at a test facility in Idaho.

A short Vox explainer on the duck curve, the shape electricity demand takes in California as solar output grows. It explains why grid operators struggle to balance supply and demand with lots of solar.

Adam Something argues in four minutes that gravity batteries like Energy Vault, which lift concrete blocks with cranes, are a poor energy storage idea. He draws on a longer Thunderf00t debunk.

Toyota's short promo clip showing a Mirai carbon-fiber hydrogen tank shot with a .50 caliber round at point blank range. The bullet pierces the tank, which does not burst, and the gas simply escapes and disperses.

A short NOVA excerpt in which David Pogue abuses a Tufts-developed battery by cutting and damaging it, and it keeps working without catching fire. It comes from the documentary 'Search for the Super Battery'.

A short side-by-side recording by Jake Archibald of the same animation demo running in Chrome, Firefox, Safari and Servo WebRender nightlies on a 60Hz display. It shows the smoothness difference of GPU-based rendering.

A two-minute Telegraph report that takes a decibel meter to a wind farm and nearby residential areas to measure how loud turbines are compared with everyday noise.

A short clip of Steve Jobs describing the computer as a bicycle for the mind. He compares human efficiency of travel to what computers do for mental work.