A simple Heartbeat animation

I remember my wife once asked how I felt the first time I met her, well...that was 26 years ago. For some unknown reasons, that same question inexplicably "haunted" me recently and I decided to deliver the same message again, in a different way with Scratch http://youtu.be/Ld-QV1vn9s4

Not that I enjoyed revealing my private life, but to share Scratch can do a lot more things than we can imagine. The features of "change effect() by ()"  seemed to be known not by many people, and the above animation unveils one of its numerous attributes. The script is shown below.