Part 3/7:
Historically significant designs like Bhāskara's wheel from the 12th century and various over-balance wheels demonstrate early attempts to exploit these concepts. Despite their innovative designs—ranging from magnets pulling weights to self-pumping waterwheels—all have ultimately succumbed to the same pitfalls: subtle oversights in physics principles that render them unviable.
For instance, the overbalance wheel relied upon shifting weights to generate motion; however, increasing the separation between weights negates any advantage due to unchanged inertia. Similarly, magnetic systems falter under the weight of their own laws, where a magnet strong enough to displace an object would paradoxically inhibit it from falling.