Wall-of-Wonder Mechanical Tourbillon Clock

Click for detailed build manual A mechanical clock is a wonder — a wonder of contradictions.  Its purpose is extremely simple: to measure time. It's like a ruler for the fourth dimension. Why, then, is a clock mechanism so much more complex than a simple ruler? A notched stick suffices for one, two, and three dimensions, yet is completely inadequate for the fourth. Why is that I wonder? Time is constant. Time is orderly. Well, not according to Dr. Einstein, but let's not delve into relativity