The Technonaut

This cool video shows the view from inside a four-stroke internal combustion engine. It was taken using a tiny camera shooting at 1000 frames-per-second. You can see the piston moving at the bottom, with the intake valve on the right, the exhaust valve on the left, and the spark plug in between them at the top.

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If you’re unfamiliar with the basics of a four-stroke internal combustion engine, this animation describes what you’re seeing in the video above.

1. Intake stroke – Air and vaporised fuel are drawn in.
2. Compression stroke – Fuel and air are compressed and ignited.
3. Power stroke – Fuel combusts and piston is pushed downwards.
4. Exhaust stroke – Exhaust gas is driven out.