Learn how to understand Dynamic Graphs for swords

EDIT! Two quick points I missed while recording: 1. While I mention that you may get slightly different figures due to having variations in sword production, the other place for variance to be introduce is in the measurement of the pivot points in particular: there is a lot of subjectivity when measuring these points even for someone with a great deal of practice in many different types of swords, so it becomes easy to get different measurements with different observers. 2: I may incorrectly have lead viewers astray in thinking that the Effective Mass Curve is represented by the “area” under the slope (as some sort of absolute representation of mass distribution). It is not: it is merely the line, which is the height, and again just fractions of 100% total mass. This is a brief overview covering the various data points contained in the dynamic properties charts produced by the likes of Peter Johnsson and Vincent Le Chevalier with the help of the Weapon Dynamic's computer. I enjoy using this as a means of Swocataloguing swords that come through my hands, and with luck this will help everyone understand how we can compare different types of swords at a glance. A special shout out to @Matthew_Jensen who does an amazing job of recording and sharing a huge number of swords via the weapon dynamics computer. 0:00 Intro 0:40 Caveats 1:23 Effective Mass Line 4:13 Inertia and Rotational Inertia 6:45 Point of Balance 8:40 Vibrational Nodes 10:51 Mass Legend 11:30 Pivot Points 13:39 Parting Remarks