The World's Most Important Machine
Adults EngineeringThe insane machines that make the most advanced computer chips.
Primitive Technology: Convection turbine experiments (hot air windmill)
Adults EngineeringI built a turbine powered by convection to see if it would be a viable source of motive force in a primitive setting.
The Weird Skyscrapers Of London
Youth EngineeringArchitect Nick Potts takes a walking tour of London to explore the city’s unique skyline.
Engineering Games
Youth EngineeringSo how can a game teach us about engineering? Pretty easily! The trick is knowing how to change one variable at a time to see what changes.
A Case Of "What-Ifs"
Youth EngineeringIn this episode, Sabrina chats to us about how variables affect our choices as engineers.
What's A Simple Machine?
EngineeringWhat's a Simple Machine? - Wheels, Ramps, Levers, and How They Work!
Primitive Technology: 2.5 m Natural draft furnace experiment
Adults EngineeringI built a 2.5 m tall furnace to see if it could get hot enough to smelt iron by natural draft alone. Such furnaces work by the stack effect where the tall furnace causes negative pressure inducing an air flow from the base of the furnace and out the top.
I Went INSIDE a Nuclear Cooling Tower
Adults EngineeringIn June 2025 I was not only asked to speak at the International Atomic Energy Agency (!), I got the extremely rare opportunity to tour the INSIDE of a nuclear cooling tower. Join me in Slovakia as we explain the genius engineering of the most iconic structure in the nuclear industry.
How 2000 Weavers Got Us To The Moon
Adults EngineeringIn the 1960s, NASA’s engineers were building the Apollo spacecraft. But they ran into a major problem that almost prevented them from getting to the moon. To solve it, they brought in some unexpected help: expert weavers.
The Most Dangerous Building in Manhattan
Adults EngineeringCorrection: From construction images of Citicorp, sharp-eyed viewers might see that the mid-V columns are still there. Those columns help prevent buckling of the diagonal and the weight of people on the floor above, but do not take the majority of the gravity load. So we left them out of our diagram to clearly explain the load paths.
Primitive Technology: Belt and pulley blower
Adults EngineeringI made a belt and pulley drive to power a blower. Up until now I had been using a rope and stick to spin the fan rotor of the blower.
Defining Success
Youth EngineeringSabrina chats about how engineers look at results to help them know when they've achieved success.
Defining A Problem
Youth EngineeringSabrina talks about how we can all be better engineers by understanding what problems we want or need to solve.
Primitive Technology: Water powered forge blower
Adults EngineeringI made a water powered forge blower to blow air into a furnace. Getting running water to power a blower had been on my list for a while now and the weather had been wet enough to cause enough flow in the creek to try one.
The Engineering Process
Youth EngineeringSabrina talks to us about the Engineering Process and why we should do things in order, as well as many of the questions we should ask along the way.
Why Don’t Railroads Need Expansion Joints?
Adults EngineeringHow Thermite turned the clickety-clack of railroads into seamless, silent tracks.
China’s MELTDOWN-PROOF Nuclear Reactor
Adults EngineeringThis year, the first next next generation nuclear reactor expected to enter operation passed a huge milestone. Scientists and engineers in China proved that the reactor was, in theory, MELTDOWN-PROOF.