Chapter 1
The friction that kindled humanity
Chapter 2
Taming the sky's electric fire
Chapter 3
The sparks under the hood
Chapter 4
The spark of life and mind
YOUR GOAL
Master of The tiny sparks that shaped human history
Ch 3 · The sparks under the hood
joy The Spark Plug
An electric spark jumps through a tiny space, To push the heavy piston at a steady pace.
joy A colorful timeline displays historical sparks next to a high-pressure, sparkless engine cylinder.
joy Classical fresco paintings show historical airships and flour mills exploding from tiny sparks.
BETA
joy Time the spark plugs to discover how internal combustion engines power modern cars.
Fun Fact
Dust explosions: Even a tiny static spark can ignite airborne chocolate dust, causing a massive factory explosion.
Glossary
spark plug (noun)
A device in an internal combustion engine that ignites the fuel mixture using an electrical spark. In 1902, Gottlob Honold patented the first commercially successful design to reliably power early automobile engines.
A device in an internal combustion engine that ignites the fuel mixture using an electrical spark. In 1902, Gottlob Honold patented the first commercially successful design to reliably power early automobile engines.
