Longitudinal waves are just like those of us that know and have played with a slinky spring have seen - they move along the length of the spring and are known as longitudinal waves.
So what has this to do with markets? This was a pattern I recognised and combining it with MAP Wave rules we can see how they work to build intensity of fractal waves as described by Martin Armstrongs ECM Methods and Methodology which is a must read! He knows far more than anyone about how this all works!
If we add MAP Waves we see the following;
If we now relabel the above waves according to their fractal wave scales we get;
And for down waves we see;
We can also see this vertically;
And looking at the following overlay of Martin Armstrong's long term reconstructed DOW;