In the tradition of Robert Beverly Hale (and to a good extent, Vilppu) I like to use the head width (not head height) an important measurement also known as the 5-eye line.
Unlike full heads, this unit hits a lot of important bony landmarks.
It is the distance from top of head to just under nose.
Another one takes you to the pit of the neck.
Another one takes you to the bottom of the sternum.
Another one takes you to the points of the ribcage.
Another one takes you to the pelvic points.
It is the width of a head.
It is the length of a sternum.
It is the length of a scapula.
It is the length of a clavicle.
Two of them make a humerus; the lower arm is 80% of this.
Three of them make a femur; the lower leg is 80% of this.
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