Tech Ingredients

Tech Ingredients is a channel of in-depth science and engineering projects. Videos are long, often close to an hour, and mix theory at a whiteboard with building and testing in a well-equipped workshop.

Topics range widely: air conditioning and heat pumps, loudspeaker design, materials such as graphene, radar and microwave shielding, and rocket engines. The presenter explains the physics and chemistry behind each idea before showing how it performs in practice. Some projects involve hazards that are best left to professionals, and the videos are more useful for their explanations than as instructions to copy. The presenter takes time to explain why each step matters, so the reasoning is as valuable as the result.

Some highlights include:

A cheap air conditioning unit is rebuilt to exchange heat with the ground, with the thermodynamics explained along the way.

A detailed look at how loudspeakers work, followed by the design and build of a high quality pair.

An exploration of an unusual approach to air conditioning and the science that makes it work.

The channel has around 1.2 million subscribers.

These videos show how engineers use physics, chemistry and measurement to improve real products. The heating and cooling projects connect directly to building services and energy engineering, while the audio work links to acoustics and electronics. It suits older students who enjoy long explanations and want to see theory tested. Watching a full episode is a little like sitting in on an engineering lecture with a practical at the end.