jet fuel

A hands-on comparison of how jet fuel, diesel, heating oil, kerosene, avgas and gasoline burn and what color they are. It shows that gasoline ignites more easily than jet fuel.

A short video from a blacksmith, who heats and bends steel to rebut the claim that jet fuel could not weaken the steel in the World Trade Center. It is delivered with a lot of attitude.

Real Engineering explains why biofuels, especially corn ethanol, are a poor energy source, looking at energy inputs, efficiency and carbon cost.

Veritasium explains how jet engines run hotter than their components' melting points, using cooling air and single-crystal superalloy turbine blades. It covers how the blades are grown as aligned crystals.

Randall Munroe of xkcd answers what would happen if you swam in a spent nuclear fuel pool, and how much radiation you would receive at the surface versus at depth.

Gravity Industries tests its jet suit for paramedic mountain rescue with the Great North Air Ambulance in the Lake District, reaching a casualty in 90 seconds versus a 25-minute climb.

AVweb's Paul Bertorelli explains why general aviation has failed to replace leaded avgas, blaming industry inertia, bureaucratic delay and an exemption that removes the incentive. This is part one of two.

AVweb's Paul Bertorelli explains in part two of a series why general aviation has not replaced leaded avgas. He covers industry inertia, bureaucratic delays and the exemption that lets the industry keep using lead.

Destin Sandlin of Smarter Every Day gives a talk to an aerospace audience, comparing how Apollo was engineered and managed with NASA's Artemis program. He raises concerns about unresolved details, the number of launches and in-orbit fuel transfer needed to reach the Moon, and the loss of institutional knowledge.

In a 2010 Google Tech Talk, Kirk Sorensen gives an economic analysis of what spent nuclear fuel actually contains. He argues it is mostly valuable material that can be partitioned and reused, not just waste to be isolated for 100,000 years.

Lex Fridman interviews Navy pilot David Fravor, a primary witness of the 2004 Tic Tac UFO encounter, about the sighting, military aviation and aerospace engineering. The conversation runs close to four hours.

An Onion Talks satire in which a young media professional pitches compost-powered cars, offering the idea itself and leaving all implementation to others.

Real Engineering examines the efficiency of hydrogen as an energy carrier. It follows production, storage and fuel cell conversion losses and compares hydrogen cars with battery electric vehicles.

Kurzgesagt compares how many people nuclear accidents have killed against other energy sources. It walks through the worst nuclear accidents and puts their death tolls in context per unit of energy.

A Virginia Tech presentation by Sid Smith about collapse, fossil fuels and overshoot, arguing that industrial civilization faces a decline and how one might live with that. It was later expanded into a video series.

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.

A 20-minute S3 episode touring Terraform Industries, a startup making synthetic natural gas from air and solar power. It walks through the reactor, injection system, direct air capture and electrolyzer, plus the company's cost goals and next milestone.

Wendover Productions explains why modern airliners fly no faster than they did decades ago, covering the economics of speed and fuel efficiency, and why supersonic travel faded.

Engineering Explained examines new research suggesting corn ethanol in US gasoline may emit as much or more carbon than gasoline. It covers the Renewable Fuel Standard and why ethanol was assumed to be a green fuel.

A satirical 'Honest Government Ad' from The Juice Media that mocks Australian carbon capture and storage policy. It lays out the fossil fuel industry's influence and the weak results of the technology in a comedic format.

Sabine Hossenfelder explains why hydrogen is a poor answer for decarbonization, covering how most hydrogen comes from fossil fuels, the efficiency losses of green hydrogen and reliance on rare metals in fuel cells.

All Cars with Jon explains how EPA fuel economy rules, especially the footprint-based CAFE formula, push automakers away from small trucks.

Scott Manley explains rotating detonation engines, how they differ from pulsed detonation engines, and why thermodynamics predicts they beat traditional jet and rocket engines.

The first episode of the 1996 PBS documentary series on the creation of the Boeing 777. It follows the design, build and certification process, including meetings with subcontractors.

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.

Cirrus introduces Safe Return, an emergency autoland system for its Vision Jet. A passenger presses a single button and the aircraft squawks emergency, reroutes and lands itself.

NYT Opinion video essay arguing that Democrat-controlled states like California, New York and Illinois often fall short of their egalitarian values. It focuses on housing costs, homelessness, regressive taxes and school segregation as drivers of inequality.

Archival 1978 Sandia footage testing shipping containers for spent nuclear fuel, including trucks ramming walls, a locomotive hitting a truck-borne cask and a rocket-propelled train crash, plus a fire test.

Cleo Abram's explainer on whether nuclear waste is really the intractable problem it is portrayed as, looking at how spent fuel can be recycled and used. It features a collaboration with Johnny Harris.

Promotional video from Zapata Racing showing Franky Zapata flying the Flyboard Air prototype, claiming autonomous flight to 10,000 feet, 150 km/h top speed and 10 minutes of endurance.

Lars Bergstrom of Google presents how Rust improves team productivity beyond safety and speed, with data on rewrites, defects and review. It compares Rust teams to those on legacy native languages and Go.

Physics Girl compares hydrogen fuel cell cars and battery electric cars after driving 1800 miles in a Toyota Mirai. The video was part of a series sponsored by Toyota.

A deadpan comedy video offering mock advice on defending your car from supermaneuverable fighter jets and air-to-surface missiles. It jokes about installing close-in Gatling guns and radar.

A short clip of a jet-powered flying lawnmower, the Sky Cutter, and related RC flying lawnmowers.

JetBrains interviews Zig creator Andrew Kelley about why Zig has no 1.0 after a decade, why the project left GitHub, and why it bans AI contributions. He also covers what makes Zig better than C and his views on open source.

A 52-minute short version of the documentary The End of Suburbia, about peak oil and the end of cheap energy. It argues that American suburbs depend on cheap oil and may become the slums of the future.

Everyday Astronaut explains the basic physics of rocket engines, the main engine cycles and fuel types, then compares SpaceX's methane-fueled full-flow staged combustion Raptor to other engines. It runs nearly 50 minutes with chapter markers.

Real Engineering analyzes whether electric planes are feasible, focusing on battery energy density limits compared with jet fuel. It concludes electric flight works mainly for short ranges.

Energy scholar Vaclav Smil argues that global energy transitions are slow and that renewable targets should not rest on wishful thinking. He appraises how energy dependencies are likely to change and asks for using much less.

A special lecture from MIT's Private Pilot Ground School in which Lt. Col. Randy Gordon, a fighter and test pilot, describes F-22 flight controls. Topics include thrust vectoring, the pilot command system and how software handles failures.