Just because LEGO Technic is technically a toy doesn’t mean that you cannot do solid engineering with it, like building air-powered engines. After first building a simple air-powered piston engine, ...

Compressed air isn’t really a practical form of energy storage for headline uses like transport or heating, but it’s a fun thing to tinker with at the small scale. [Tom Stanton] is plenty experienced ...

If you are not at least moderately informed about how engines work, you may still be aware that they all require water, or antifreeze, in order to function. It is true that some form of coolant is ...