Watch the last part of the video where there is a glass of water on the engine. The engine runs so smooth it does not even ripple the water. Looking at the glass on the back, you are seeing the reflection of the exhaust tubes bouncing on the flat surface of the water. The water actually does not even have a ripple.
0
0
Related videos
Preparing
To view the site materials you should be more than or equal to 18 years old